[PATCH v6] README for 64bit xid

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[PATCH v6] README for 64bit xid
657+ messages / 5 participants
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* [PATCH v6] README for 64bit xid
@ 2022-01-10 19:20 Pavel Borisov <pashkin.elfe@gmail.com>
  0 siblings, 0 replies; 657+ messages in thread

From: Pavel Borisov @ 2022-01-10 19:20 UTC (permalink / raw)

Authors:
- Pavel Borisov <pashkin.elfe@gmail.com>
- Maxim Orlov <orlovmg@gmail.com>
- Yura Sokolov <y.sokolov@postgrespro.ru> <funny.falcon@gmail.com>
---
 src/backend/access/heap/README.XID64 | 128 +++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 src/backend/access/heap/README.XID64

diff --git a/src/backend/access/heap/README.XID64 b/src/backend/access/heap/README.XID64
new file mode 100644
index 00000000000..457ba9b9ef5
--- /dev/null
+++ b/src/backend/access/heap/README.XID64
@@ -0,0 +1,128 @@
+src/backend/access/heap/README.XID64
+
+64-bit Transaction ID's (XID)
+=============================
+
+A limited number (N = 2^32) of XID's required to do vacuum freeze to prevent
+wraparound every N/2 transactions. This causes performance degradation due
+to the need to exclusively lock tables while being vacuumed. In each
+wraparound cycle, SLRU buffers are also being cut.
+
+With 64-bit XID's wraparound is effectively postponed to a very distant
+future. Even in highly loaded systems that had 2^32 transactions per day
+it will take huge 2^31 days before the first enforced "vacuum to prevent
+wraparound"). Buffers cutting and routine vacuum are not enforced, and DBA
+can plan them independently at the time with the least system load and least
+critical for database performance. Also, it can be done less frequently
+(several times a year vs every several days) on systems with transaction rates
+similar to those mentioned above.
+
+On-disk tuple and page format
+-----------------------------
+
+On-disk tuple format remains unchanged. 32-bit t_xmin and t_xmax store the
+lower parts of 64-bit XMIN and XMAX values. Each heap page has additional
+64-bit pd_xid_base and pd_multi_base which are common for all tuples on a page.
+They are placed into a pd_special area - 16 bytes in the end of a heap page.
+Actual XMIN/XMAX for a tuple are calculated upon reading a tuple from a page
+as follows:
+
+XMIN = t_xmin + pd_xid_base. 					(1)
+XMAX = t_xmax + pd_xid_base/pd_multi_base.		(2)
+
+"Double XMAX" page format
+---------------------------------
+
+At first read of a heap page after pg_upgrade from 32-bit XID PostgreSQL
+version pd_special area with a size of 16 bytes should be added to a page.
+Though a page may not have space for this. Then it can be converted to a
+temporary format called "double XMAX".
+
+All tuples after pg-upgrade would necessarily have xmin = FrozenTransactionId.
+So we don't need tuple header t_xmin field and we reuse t_xmin to store higher
+32 bits of its XMAX.
+
+Double XMAX format is only for full pages that don't have 16 bytes for
+pd_special. So it neither has a place for a single tuple. Insert and HOT update
+for double XMAX pages is impossible and not supported. We can only read or
+delete tuples from it.
+
+When we are able to prune page double XMAX it will be converted from it to
+general 64-bit XID page format with all operations on its tuples supported.
+
+In-memory tuple format
+----------------------
+
+In-memory tuple representation consists of two parts:
+- HeapTupleHeader from disk page (contains all heap tuple contents, not only
+header)
+- HeapTuple with additional in-memory fields
+
+HeapTuple for each tuple in memory stores t_xid_base/t_multi_base - a copies of
+page's pd_xid_base/pd_multi_base. With tuple's 32-bit t_xmin and t_xmax from
+HeapTupleHeader they are used to calculate actual 64-bit XMIN and XMAX:
+
+XMIN = t_xmin + t_xid_base. 					(3)
+XMAX = t_xmax + t_xid_base/t_multi_base.		(4)
+
+The downside of this is that we can not use tuple's XMIN and XMAX right away.
+We often need to re-read t_xmin and t_xmax - which could actually be pointers
+into a page in shared buffers and therefore they could be updated by any other
+backend.
+
+Update/delete with 64-bit XIDs and 32-bit t_xmin/t_xmax
+--------------------------------------------------------------
+
+When we try to delete/update a tuple, we check that XMAX for a page fits (2).
+I.e. that t_xmax will not be over MaxShortTransactionId relative to
+pd_xid_base/pd_multi_base of a its page.
+
+If the current XID doesn't fit a range
+(pd_xid_base, pd_xid_base + MaxShortTransactionId) (5):
+
+- heap_page_prepare_for_xid() will try to increase pd_xid_base/pd_multi_base on
+a page and update all t_xmin/t_xmax of the other tuples on the page to
+correspond new pd_xid_base/pd_multi_base.
+
+- If it was impossible, it will try to prune and freeze tuples on a page.
+
+- If this is unsuccessful it will throw an error. Normally this is very
+unlikely but if there is a very old living transaction with an age of around
+2^32 this can arise. Basically, this is a behavior similar to one during the
+vacuum to prevent wraparound when XID was 32-bit. Dba should take care and
+avoid very-long-living transactions with an age close to 2^32. So long-living
+transactions often they are most likely defunct.
+
+Insert with 64-bit XIDs and 32-bit t_xmin/t_xmax
+------------------------------------------------
+
+On insert we check if current XID fits a range (5). Otherwise:
+
+- heap_page_prepare_for_xid() will try to increase pd_xid_base for t_xmin will
+not be over MaxShortTransactionId.
+
+- If it is impossible, then it will try to prune and freeze tuples on a page.
+
+Known issue: if pd_xid_base could not be shifted to accommodate a tuple being
+inserted due to a very long-running transaction, we just throw an error. We
+neither try to insert a tuple into another page nor mark the current page as
+full. So, in this (unlikely) case we will get regular insert errors on the next
+tries to insert to the page 'locked' by this very long-running transaction.
+
+Upgrade from 32-bit XID versions
+--------------------------------
+
+pg_upgrade doesn't change pages format itself. It is done lazily after.
+
+1. At first heap page read, tuples on a page are repacked to free 16 bytes
+at the end of a page, possibly freeing space from dead tuples.
+
+2A. 16 bytes of pd_special is added if there is a place for it
+
+2B. Page is converted to "Double XMAX" format if there is no place for
+pd_special
+
+3. If a page is in double XMAX format after its first read, and vacuum (or
+micro-vacuum at select query) could prune some tuples and free space for
+pd_special, prune_page will add pd_special and convert page from double XMAX
+to general 64-bit XID page format.
-- 
2.24.3 (Apple Git-128)


--cpok4wp6gsarlzvp--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58 Christoph Berg <myon@debian.org>
  0 siblings, 0 replies; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 10:04 Christoph Berg <myon@debian.org>
  2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  0 siblings, 1 reply; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 10:04 UTC (permalink / raw)
  To: pgsql-hackers; +Cc: Michael Paquier <michael@paquier.xyz>

The docs currently don't say what wal_compression=on is, so here is a
patch.

Christoph


^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* Re: [PATCH] Document wal_compression=on
  2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
@ 2026-06-29 10:41 ` John Naylor <johncnaylorls@gmail.com>
  2026-06-29 14:16   ` Re: [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  2026-06-30 03:53   ` Re: [PATCH] Document wal_compression=on Michael Paquier <michael@paquier.xyz>
  0 siblings, 2 replies; 657+ messages in thread

From: John Naylor @ 2026-06-29 10:41 UTC (permalink / raw)
  To: Christoph Berg <myon@debian.org>; pgsql-hackers; Michael Paquier <michael@paquier.xyz>

On Mon, Jun 29, 2026 at 5:04â€¯PM Christoph Berg <myon@debian.org> wrote:
>
> The docs currently don't say what wal_compression=on is, so here is a
> patch.

+1 for documenting this.

+        The value <literal>on</literal> is a deprecated alias for
<literal>pglz</literal>.

"deprecated" implies we may remove it someday. I don't think we'd gain
from doing that, but we could instead call 'on' a "historical
spelling" of 'pglz'.

-- 
John Naylor
Amazon Web Services





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* Re: [PATCH] Document wal_compression=on
  2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
@ 2026-06-29 14:16   ` Christoph Berg <myon@debian.org>
  2026-06-30 10:19     ` Re: [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  1 sibling, 1 reply; 657+ messages in thread

From: Christoph Berg @ 2026-06-29 14:16 UTC (permalink / raw)
  To: John Naylor <johncnaylorls@gmail.com>; +Cc: pgsql-hackers; Michael Paquier <michael@paquier.xyz>

Re: John Naylor
> +        The value <literal>on</literal> is a deprecated alias for
> <literal>pglz</literal>.
> 
> "deprecated" implies we may remove it someday. I don't think we'd gain
> from doing that, but we could instead call 'on' a "historical
> spelling" of 'pglz'.

Or perhaps leave the door open for picking a better default in the future?

     The value <literal>on</literal> is currently an alias for <literal>pglz</literal>.

(I would be fine with either of the 3 variants.)

Maybe we should also update the postgresql.conf.sample:

 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or on), lz4, or zstd

(Or just delete it there.)

Christoph





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* Re: [PATCH] Document wal_compression=on
  2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  2026-06-29 14:16   ` Re: [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
@ 2026-06-30 10:19     ` Christoph Berg <myon@debian.org>
  2026-07-01 02:19       ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  0 siblings, 1 reply; 657+ messages in thread

From: Christoph Berg @ 2026-06-30 10:19 UTC (permalink / raw)
  To: John Naylor <johncnaylorls@gmail.com>; pgsql-hackers; Michael Paquier <michael@paquier.xyz>

Re: To John Naylor
> Or perhaps leave the door open for picking a better default in the future?
> 
>      The value <literal>on</literal> is currently an alias for <literal>pglz</literal>.

> Maybe we should also update the postgresql.conf.sample:

I'm attaching v2 that implements this (without the "currently").

Christoph


^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* Re: [PATCH] Document wal_compression=on
  2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  2026-06-29 14:16   ` Re: [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  2026-06-30 10:19     ` Re: [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
@ 2026-07-01 02:19       ` John Naylor <johncnaylorls@gmail.com>
  0 siblings, 0 replies; 657+ messages in thread

From: John Naylor @ 2026-07-01 02:19 UTC (permalink / raw)
  To: Christoph Berg <myon@debian.org>; John Naylor <johncnaylorls@gmail.com>; pgsql-hackers; Michael Paquier <michael@paquier.xyz>

On Tue, Jun 30, 2026 at 5:19â€¯PM Christoph Berg <myon@debian.org> wrote:
> >
> >      The value <literal>on</literal> is currently an alias for <literal>pglz</literal>.
>
> > Maybe we should also update the postgresql.conf.sample:
>
> I'm attaching v2 that implements this (without the "currently").

I pushed this with the change of using the language "historical
spelling" as mentioned upthread.

-- 
John Naylor
Amazon Web Services






^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* Re: [PATCH] Document wal_compression=on
  2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
@ 2026-06-30 03:53   ` Michael Paquier <michael@paquier.xyz>
  2026-06-30 09:27     ` Re: [PATCH] Document wal_compression=on wenhui qiu <qiuwenhuifx@gmail.com>
  1 sibling, 1 reply; 657+ messages in thread

From: Michael Paquier @ 2026-06-30 03:53 UTC (permalink / raw)
  To: John Naylor <johncnaylorls@gmail.com>; +Cc: Christoph Berg <myon@debian.org>; pgsql-hackers

On Mon, Jun 29, 2026 at 05:41:27PM +0700, John Naylor wrote:
> +        The value <literal>on</literal> is a deprecated alias for
> <literal>pglz</literal>.
> 
> "deprecated" implies we may remove it someday. I don't think we'd gain
> from doing that, but we could instead call 'on' a "historical
> spelling" of 'pglz'.

+1.
--
Michael


Attachments:

  [application/pgp-signature] signature.asc (833B, ../../akM9so0EhM24ntiI@paquier.xyz/2-signature.asc)
  download

^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* Re: [PATCH] Document wal_compression=on
  2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  2026-06-30 03:53   ` Re: [PATCH] Document wal_compression=on Michael Paquier <michael@paquier.xyz>
@ 2026-06-30 09:27     ` wenhui qiu <qiuwenhuifx@gmail.com>
  2026-06-30 09:48       ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  0 siblings, 1 reply; 657+ messages in thread

From: wenhui qiu @ 2026-06-30 09:27 UTC (permalink / raw)
  To: Michael Paquier <michael@paquier.xyz>; +Cc: John Naylor <johncnaylorls@gmail.com>; Christoph Berg <myon@debian.org>; pgsql-hackers

> Hi
>
> The recent PostgreSQL commit changes the default TOAST compression to lz4 when
> LZ4 support is available, based on the rationale that LZ4 is generally more
> efficient than pglz in terms of CPU usage and compression ratio.Given
> that, should we also consider changing the default compression method used
> by wal_compression = on from pglz to lz4?
>
Currently, wal_compression = on still maps to pglz, while lz4 has to be
> selected explicitly with:
>
> wal_compression = lz4
>
> If LZ4 is now considered stable and preferable enough to become the
> default for TOAST compression, it may be worth aligning WAL compression
> behavior as well, or at least discussing whether on should continue to
> imply pglz.
>



Thanks


^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* Re: [PATCH] Document wal_compression=on
  2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  2026-06-30 03:53   ` Re: [PATCH] Document wal_compression=on Michael Paquier <michael@paquier.xyz>
  2026-06-30 09:27     ` Re: [PATCH] Document wal_compression=on wenhui qiu <qiuwenhuifx@gmail.com>
@ 2026-06-30 09:48       ` John Naylor <johncnaylorls@gmail.com>
  2026-06-30 09:57         ` Re: [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  0 siblings, 1 reply; 657+ messages in thread

From: John Naylor @ 2026-06-30 09:48 UTC (permalink / raw)
  To: wenhui qiu <qiuwenhuifx@gmail.com>; +Cc: Michael Paquier <michael@paquier.xyz>; Christoph Berg <myon@debian.org>; pgsql-hackers

On Tue, Jun 30, 2026 at 4:27â€¯PM wenhui qiu <qiuwenhuifx@gmail.com> wrote:

>> The recent PostgreSQL commit changes the default TOAST compression to lz4 when LZ4 support is available, based on the rationale that LZ4 is generally more efficient than pglz in terms of CPU usage and compression ratio.Given that, should we also consider changing the default compression method used by wal_compression = on from pglz to lz4?

FYI, default value of wal_compression is "off".

--
John Naylor
Amazon Web Services





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* Re: [PATCH] Document wal_compression=on
  2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  2026-06-30 03:53   ` Re: [PATCH] Document wal_compression=on Michael Paquier <michael@paquier.xyz>
  2026-06-30 09:27     ` Re: [PATCH] Document wal_compression=on wenhui qiu <qiuwenhuifx@gmail.com>
  2026-06-30 09:48       ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
@ 2026-06-30 09:57         ` Christoph Berg <myon@debian.org>
  2026-06-30 10:07           ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  0 siblings, 1 reply; 657+ messages in thread

From: Christoph Berg @ 2026-06-30 09:57 UTC (permalink / raw)
  To: John Naylor <johncnaylorls@gmail.com>; +Cc: wenhui qiu <qiuwenhuifx@gmail.com>; Michael Paquier <michael@paquier.xyz>; pgsql-hackers

Re: John Naylor
> FYI, default value of wal_compression is "off".

Still, there is value in being consistent. If default_toast_compression=lz4
and I turn wal_compression "on", I would also accept lz4 there.

We are picking the best toast compression algorithm by default, we
should also do that for wal.

Christoph





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

* Re: [PATCH] Document wal_compression=on
  2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
  2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  2026-06-30 03:53   ` Re: [PATCH] Document wal_compression=on Michael Paquier <michael@paquier.xyz>
  2026-06-30 09:27     ` Re: [PATCH] Document wal_compression=on wenhui qiu <qiuwenhuifx@gmail.com>
  2026-06-30 09:48       ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
  2026-06-30 09:57         ` Re: [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
@ 2026-06-30 10:07           ` John Naylor <johncnaylorls@gmail.com>
  0 siblings, 0 replies; 657+ messages in thread

From: John Naylor @ 2026-06-30 10:07 UTC (permalink / raw)
  To: Christoph Berg <myon@debian.org>; John Naylor <johncnaylorls@gmail.com>; wenhui qiu <qiuwenhuifx@gmail.com>; Michael Paquier <michael@paquier.xyz>; pgsql-hackers

On Tue, Jun 30, 2026 at 4:57â€¯PM Christoph Berg <myon@debian.org> wrote:
>
> Re: John Naylor
> > FYI, default value of wal_compression is "off".
>
> Still, there is value in being consistent. If default_toast_compression=lz4
> and I turn wal_compression "on", I would also accept lz4 there.
>
> We are picking the best toast compression algorithm by default, we
> should also do that for wal.

The thread subject is about documenting the state of affairs that have
existed since PG15. If you want to propose a change in behavior for
master, that's material for a separate thread.

-- 
John Naylor
Amazon Web Services





^ permalink  raw  reply  [nested|flat] 657+ messages in thread

end of thread, other threads:[~2026-07-01 02:19 UTC | newest]

Thread overview: 657+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2022-01-10 19:20 [PATCH v6] README for 64bit xid Pavel Borisov <pashkin.elfe@gmail.com>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
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2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
2026-06-29 14:16   ` Re: [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-30 10:19     ` Re: [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-07-01 02:19       ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
2026-06-30 03:53   ` Re: [PATCH] Document wal_compression=on Michael Paquier <michael@paquier.xyz>
2026-06-30 09:27     ` Re: [PATCH] Document wal_compression=on wenhui qiu <qiuwenhuifx@gmail.com>
2026-06-30 09:48       ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>
2026-06-30 09:57         ` Re: [PATCH] Document wal_compression=on Christoph Berg <myon@debian.org>
2026-06-30 10:07           ` Re: [PATCH] Document wal_compression=on John Naylor <johncnaylorls@gmail.com>

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