agora inbox for [email protected]  
help / color / mirror / Atom feed
[PATCH v2a 2/4] Introduce ternary reloptions
397+ messages / 5 participants
[nested] [flat]

* [PATCH v2a 2/4] Introduce ternary reloptions
@ 2025-09-04 14:41  Nikolay Shaplov <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Nikolay Shaplov @ 2025-09-04 14:41 UTC (permalink / raw)

Introduce ternary reloption as a replacement for current `vacuum_truncate`
implementation. Remove `vacuum_truncate_set` additional flag and using
`TERNARY_UNSET` value instead.
---
 src/backend/access/common/reloptions.c | 129 ++++++++++++++++++++-----
 src/backend/commands/vacuum.c          |   4 +-
 src/include/access/reloptions.h        |  26 ++---
 src/include/c.h                        |  16 +++
 src/include/utils/rel.h                |   3 +-
 5 files changed, 135 insertions(+), 43 deletions(-)

diff --git a/src/backend/access/common/reloptions.c b/src/backend/access/common/reloptions.c
index 0af3fea68f..f543f11001 100644
--- a/src/backend/access/common/reloptions.c
+++ b/src/backend/access/common/reloptions.c
@@ -40,9 +40,9 @@
  *
  * To add an option:
  *
- * (i) decide on a type (bool, integer, real, enum, string), name, default
- * value, upper and lower bounds (if applicable); for strings, consider a
- * validation routine.
+ * (i) decide on a type (bool, ternary, integer, real, enum, string), name,
+ * default value, upper and lower bounds (if applicable); for strings,
+ * consider a validation routine.
  * (ii) add a record below (or use add_<type>_reloption).
  * (iii) add it to the appropriate options struct (perhaps StdRdOptions)
  * (iv) add it to the appropriate handling routine (perhaps
@@ -147,15 +147,6 @@ static relopt_bool boolRelOpts[] =
 		},
 		false
 	},
-	{
-		{
-			"vacuum_truncate",
-			"Enables vacuum to truncate empty pages at the end of this table",
-			RELOPT_KIND_HEAP | RELOPT_KIND_TOAST,
-			ShareUpdateExclusiveLock
-		},
-		true
-	},
 	{
 		{
 			"deduplicate_items",
@@ -170,6 +161,21 @@ static relopt_bool boolRelOpts[] =
 	{{NULL}}
 };
 
+static relopt_ternary ternaryRelOpts[] =
+{
+	{
+		{
+			"vacuum_truncate",
+			"Enables vacuum to truncate empty pages at the end of this table",
+			RELOPT_KIND_HEAP | RELOPT_KIND_TOAST,
+			ShareUpdateExclusiveLock
+		},
+		TERNARY_UNSET
+	},
+	/* list terminator */
+	{{NULL}}
+};
+
 static relopt_int intRelOpts[] =
 {
 	{
@@ -600,6 +606,13 @@ initialize_reloptions(void)
 								   boolRelOpts[i].gen.lockmode));
 		j++;
 	}
+	for (i = 0; ternaryRelOpts[i].gen.name; i++)
+	{
+		Assert(DoLockModesConflict(ternaryRelOpts[i].gen.lockmode,
+								   ternaryRelOpts[i].gen.lockmode));
+		j++;
+	}
+
 	for (i = 0; intRelOpts[i].gen.name; i++)
 	{
 		Assert(DoLockModesConflict(intRelOpts[i].gen.lockmode,
@@ -640,6 +653,14 @@ initialize_reloptions(void)
 		j++;
 	}
 
+	for (i = 0; ternaryRelOpts[i].gen.name; i++)
+	{
+		relOpts[j] = &ternaryRelOpts[i].gen;
+		relOpts[j]->type = RELOPT_TYPE_TERNARY;
+		relOpts[j]->namelen = strlen(relOpts[j]->name);
+		j++;
+	}
+
 	for (i = 0; intRelOpts[i].gen.name; i++)
 	{
 		relOpts[j] = &intRelOpts[i].gen;
@@ -800,6 +821,9 @@ allocate_reloption(bits32 kinds, int type, const char *name, const char *desc,
 		case RELOPT_TYPE_BOOL:
 			size = sizeof(relopt_bool);
 			break;
+		case RELOPT_TYPE_TERNARY:
+			size = sizeof(relopt_ternary);
+			break;
 		case RELOPT_TYPE_INT:
 			size = sizeof(relopt_int);
 			break;
@@ -883,6 +907,54 @@ add_local_bool_reloption(local_relopts *relopts, const char *name,
 	add_local_reloption(relopts, (relopt_gen *) newoption, offset);
 }
 
+/*
+ * init_ternary_reloption
+ *		Allocate and initialize a new ternary reloption
+ */
+static relopt_ternary *
+init_ternary_reloption(bits32 kinds, const char *name, const char *desc,
+					ternary default_val, LOCKMODE lockmode)
+{
+	relopt_ternary *newoption;
+
+	newoption = (relopt_ternary *) allocate_reloption(kinds,
+									RELOPT_TYPE_TERNARY, name, desc, lockmode);
+	newoption->default_val = default_val;
+
+	return newoption;
+}
+
+/*
+ * add_ternary_reloption
+ *		Add a new ternary reloption
+ */
+void
+add_ternary_reloption(bits32 kinds, const char *name, const char *desc,
+				   ternary default_val, LOCKMODE lockmode)
+{
+	relopt_ternary *newoption = init_ternary_reloption(kinds, name, desc,
+												 default_val, lockmode);
+
+	add_reloption((relopt_gen *) newoption);
+}
+
+/*
+ * add_local_ternary_reloption
+ *		Add a new ternary local reloption
+ *
+ * 'offset' is offset of ternary-typed field.
+ */
+void
+add_local_ternary_reloption(local_relopts *relopts, const char *name,
+							const char *desc, ternary default_val,
+							int offset)
+{
+	relopt_ternary *newoption = init_ternary_reloption(RELOPT_KIND_LOCAL,
+												name, desc,
+												default_val, 0);
+
+	add_local_reloption(relopts, (relopt_gen *) newoption, offset);
+}
 
 /*
  * init_real_reloption
@@ -1617,6 +1689,18 @@ parse_one_reloption(relopt_value *option, char *text_str, int text_len,
 									option->gen->name, value)));
 			}
 			break;
+		case RELOPT_TYPE_TERNARY:
+			{
+				bool b;
+				parsed = parse_bool(value, &b);
+				option->values.ternary_val = b ? TERNARY_TRUE : TERNARY_FALSE;
+				if (validate && !parsed)
+					ereport(ERROR,
+							(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
+							 errmsg("invalid value for ternary option \"%s\": %s",
+									option->gen->name, value)));
+			}
+			break;
 		case RELOPT_TYPE_INT:
 			{
 				relopt_int *optint = (relopt_int *) option->gen;
@@ -1780,17 +1864,6 @@ fillRelOptions(void *rdopts, Size basesize,
 				char	   *itempos = ((char *) rdopts) + elems[j].offset;
 				char	   *string_val;
 
-				/*
-				 * If isset_offset is provided, store whether the reloption is
-				 * set there.
-				 */
-				if (elems[j].isset_offset > 0)
-				{
-					char	   *setpos = ((char *) rdopts) + elems[j].isset_offset;
-
-					*(bool *) setpos = options[i].isset;
-				}
-
 				switch (options[i].gen->type)
 				{
 					case RELOPT_TYPE_BOOL:
@@ -1798,6 +1871,11 @@ fillRelOptions(void *rdopts, Size basesize,
 							options[i].values.bool_val :
 							((relopt_bool *) options[i].gen)->default_val;
 						break;
+					case RELOPT_TYPE_TERNARY:
+						*(ternary *) itempos = options[i].isset ?
+							options[i].values.ternary_val :
+							((relopt_ternary *) options[i].gen)->default_val;
+						break;
 					case RELOPT_TYPE_INT:
 						*(int *) itempos = options[i].isset ?
 							options[i].values.int_val :
@@ -1912,8 +1990,8 @@ default_reloptions(Datum reloptions, bool validate, relopt_kind kind)
 		offsetof(StdRdOptions, parallel_workers)},
 		{"vacuum_index_cleanup", RELOPT_TYPE_ENUM,
 		offsetof(StdRdOptions, vacuum_index_cleanup)},
-		{"vacuum_truncate", RELOPT_TYPE_BOOL,
-		offsetof(StdRdOptions, vacuum_truncate), offsetof(StdRdOptions, vacuum_truncate_set)},
+		{"vacuum_truncate", RELOPT_TYPE_TERNARY,
+		offsetof(StdRdOptions, vacuum_truncate)},
 		{"vacuum_max_eager_freeze_failure_rate", RELOPT_TYPE_REAL,
 		offsetof(StdRdOptions, vacuum_max_eager_freeze_failure_rate)}
 	};
@@ -1993,7 +2071,6 @@ build_local_reloptions(local_relopts *relopts, Datum options, bool validate)
 		elems[i].optname = opt->option->name;
 		elems[i].opttype = opt->option->type;
 		elems[i].offset = opt->offset;
-		elems[i].isset_offset = 0;	/* not supported for local relopts yet */
 
 		i++;
 	}
diff --git a/src/backend/commands/vacuum.c b/src/backend/commands/vacuum.c
index 733ef40ae7..977babff54 100644
--- a/src/backend/commands/vacuum.c
+++ b/src/backend/commands/vacuum.c
@@ -2221,9 +2221,9 @@ vacuum_rel(Oid relid, RangeVar *relation, VacuumParams params,
 	{
 		StdRdOptions *opts = (StdRdOptions *) rel->rd_options;
 
-		if (opts && opts->vacuum_truncate_set)
+		if (opts && opts->vacuum_truncate != TERNARY_UNSET)
 		{
-			if (opts->vacuum_truncate)
+			if (opts->vacuum_truncate == TERNARY_TRUE)
 				params.truncate = VACOPTVALUE_ENABLED;
 			else
 				params.truncate = VACOPTVALUE_DISABLED;
diff --git a/src/include/access/reloptions.h b/src/include/access/reloptions.h
index a604a4702c..a436697658 100644
--- a/src/include/access/reloptions.h
+++ b/src/include/access/reloptions.h
@@ -29,6 +29,7 @@
 typedef enum relopt_type
 {
 	RELOPT_TYPE_BOOL,
+	RELOPT_TYPE_TERNARY,  /* on, off, unset */
 	RELOPT_TYPE_INT,
 	RELOPT_TYPE_REAL,
 	RELOPT_TYPE_ENUM,
@@ -80,6 +81,7 @@ typedef struct relopt_value
 	union
 	{
 		bool		bool_val;
+		ternary		ternary_val;
 		int			int_val;
 		double		real_val;
 		int			enum_val;
@@ -94,6 +96,12 @@ typedef struct relopt_bool
 	bool		default_val;
 } relopt_bool;
 
+typedef struct relopt_rernary
+{
+	relopt_gen	gen;
+	int 		default_val;
+} relopt_ternary;
+
 typedef struct relopt_int
 {
 	relopt_gen	gen;
@@ -152,19 +160,6 @@ typedef struct
 	const char *optname;		/* option's name */
 	relopt_type opttype;		/* option's datatype */
 	int			offset;			/* offset of field in result struct */
-
-	/*
-	 * isset_offset is an optional offset of a field in the result struct that
-	 * stores whether the option is explicitly set for the relation or if it
-	 * just picked up the default value.  In most cases, this can be
-	 * accomplished by giving the reloption a special out-of-range default
-	 * value (e.g., some integer reloptions use -2), but this isn't always
-	 * possible.  For example, a Boolean reloption cannot be given an
-	 * out-of-range default, so we need another way to discover the source of
-	 * its value.  This offset is only used if given a value greater than
-	 * zero.
-	 */
-	int			isset_offset;
 } relopt_parse_elt;
 
 /* Local reloption definition */
@@ -195,6 +190,8 @@ typedef struct local_relopts
 extern relopt_kind add_reloption_kind(void);
 extern void add_bool_reloption(bits32 kinds, const char *name, const char *desc,
 							   bool default_val, LOCKMODE lockmode);
+extern void add_ternary_reloption(bits32 kinds, const char *name,
+					const char *desc, int default_val, LOCKMODE lockmode);
 extern void add_int_reloption(bits32 kinds, const char *name, const char *desc,
 							  int default_val, int min_val, int max_val,
 							  LOCKMODE lockmode);
@@ -214,6 +211,9 @@ extern void register_reloptions_validator(local_relopts *relopts,
 extern void add_local_bool_reloption(local_relopts *relopts, const char *name,
 									 const char *desc, bool default_val,
 									 int offset);
+extern void add_local_ternary_reloption(local_relopts *relopts,
+								const char *name, const char *desc,
+								ternary default_val, int offset);
 extern void add_local_int_reloption(local_relopts *relopts, const char *name,
 									const char *desc, int default_val,
 									int min_val, int max_val, int offset);
diff --git a/src/include/c.h b/src/include/c.h
index 39022f8a9d..9c59ccccf8 100644
--- a/src/include/c.h
+++ b/src/include/c.h
@@ -488,6 +488,22 @@ typedef void (*pg_funcptr_t) (void);
 
 #include <stdbool.h>
 
+/*
+ * ternary
+ *		Boolean value with an extrea "unset" option
+ *
+ * Ternary data type is used in relation options that can be "true", "false" or
+ * "unset". Since relation options are used deep inside the PostgreSQL code,
+ * this type is declared globally.
+*/
+
+typedef enum ternary
+{
+	TERNARY_FALSE = 0,
+	TERNARY_TRUE = 1,
+	TERNARY_UNSET = -1
+} ternary;
+
 
 /* ----------------------------------------------------------------
  *				Section 3:	standard system types
diff --git a/src/include/utils/rel.h b/src/include/utils/rel.h
index b552359915..7346d618f9 100644
--- a/src/include/utils/rel.h
+++ b/src/include/utils/rel.h
@@ -346,8 +346,7 @@ typedef struct StdRdOptions
 	bool		user_catalog_table; /* use as an additional catalog relation */
 	int			parallel_workers;	/* max number of parallel workers */
 	StdRdOptIndexCleanup vacuum_index_cleanup;	/* controls index vacuuming */
-	bool		vacuum_truncate;	/* enables vacuum to truncate a relation */
-	bool		vacuum_truncate_set;	/* whether vacuum_truncate is set */
+	ternary		vacuum_truncate;	/* enables vacuum to truncate a relation */
 
 	/*
 	 * Fraction of pages in a relation that vacuum can eagerly scan and fail
-- 
2.39.2


--nextPart4155600.3ZeAukHxDK
Content-Disposition: attachment;
 filename="v2a-0003-Add-alias-to-be-used-as-unset-state.patch"
Content-Transfer-Encoding: 7Bit
Content-Type: text/x-patch; charset="unicode-2-0-utf-8";
 name="v2a-0003-Add-alias-to-be-used-as-unset-state.patch"



^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

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

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

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


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

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

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH v2] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.

Update postgresql.conf.sample to say "on" is the same as pglz.
---
 doc/src/sgml/config.sgml                      | 1 +
 src/backend/utils/misc/postgresql.conf.sample | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..7bdc85539ce 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is an alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ac38cddaaf9..86f2e16eba0 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -262,7 +262,7 @@
 #wal_log_hints = off                    # also do full page writes of non-critical updates
                                         # (change requires restart)
 #wal_compression = off                  # enables compression of full-page writes;
-                                        # off, pglz, lz4, zstd, or on
+                                        # off, pglz (or "on"), lz4, or zstd
 #wal_init_zero = on                     # zero-fill new WAL files
 #wal_recycle = on                       # recycle WAL files
 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
-- 
2.53.0


--aOuCd2U3waCadW1P--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 09:58  Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 09:58 UTC (permalink / raw)

This was not included when lz4 support was added in
4035cd5d4eee4dae797bfc77ab07f8dcd8781b41, but since the value is still
legal and even mentioned in postgresql.conf.sample, it should be
documented.
---
 doc/src/sgml/config.sgml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 569fc0e7dba..d645a50476f 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -3671,6 +3671,7 @@ include_dir 'conf.d'
         was compiled with <option>--with-lz4</option>) and
         <literal>zstd</literal> (if <productname>PostgreSQL</productname>
         was compiled with <option>--with-zstd</option>).
+        The value <literal>on</literal> is a deprecated alias for <literal>pglz</literal>.
         The default value is <literal>off</literal>.
         Only superusers and users with the appropriate <literal>SET</literal>
         privilege can change this setting.
-- 
2.53.0


--e4Q8So2tphS9ic0E--





^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* [PATCH] Document wal_compression=on
@ 2026-06-29 10:04  Christoph Berg <[email protected]>
  0 siblings, 1 reply; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 10:04 UTC (permalink / raw)
  To: pgsql-hackers; +Cc: Michael Paquier <[email protected]>

The docs currently don't say what wal_compression=on is, so here is a
patch.

Christoph


^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* Re: [PATCH] Document wal_compression=on
@ 2026-06-29 10:41  John Naylor <[email protected]>
  parent: Christoph Berg <[email protected]>
  0 siblings, 2 replies; 397+ messages in thread

From: John Naylor @ 2026-06-29 10:41 UTC (permalink / raw)
  To: Christoph Berg <[email protected]>; pgsql-hackers; Michael Paquier <[email protected]>

On Mon, Jun 29, 2026 at 5:04 PM Christoph Berg <[email protected]> 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] 397+ messages in thread

* Re: [PATCH] Document wal_compression=on
@ 2026-06-29 14:16  Christoph Berg <[email protected]>
  parent: John Naylor <[email protected]>
  1 sibling, 1 reply; 397+ messages in thread

From: Christoph Berg @ 2026-06-29 14:16 UTC (permalink / raw)
  To: John Naylor <[email protected]>; +Cc: pgsql-hackers; Michael Paquier <[email protected]>

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] 397+ messages in thread

* Re: [PATCH] Document wal_compression=on
@ 2026-06-30 03:53  Michael Paquier <[email protected]>
  parent: John Naylor <[email protected]>
  1 sibling, 1 reply; 397+ messages in thread

From: Michael Paquier @ 2026-06-30 03:53 UTC (permalink / raw)
  To: John Naylor <[email protected]>; +Cc: Christoph Berg <[email protected]>; 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, ../../[email protected]/2-signature.asc)
  download

^ permalink  raw  reply  [nested|flat] 397+ messages in thread

* Re: [PATCH] Document wal_compression=on
@ 2026-06-30 09:27  wenhui qiu <[email protected]>
  parent: Michael Paquier <[email protected]>
  0 siblings, 1 reply; 397+ messages in thread

From: wenhui qiu @ 2026-06-30 09:27 UTC (permalink / raw)
  To: Michael Paquier <[email protected]>; +Cc: John Naylor <[email protected]>; Christoph Berg <[email protected]>; 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] 397+ messages in thread

* Re: [PATCH] Document wal_compression=on
@ 2026-06-30 09:48  John Naylor <[email protected]>
  parent: wenhui qiu <[email protected]>
  0 siblings, 1 reply; 397+ messages in thread

From: John Naylor @ 2026-06-30 09:48 UTC (permalink / raw)
  To: wenhui qiu <[email protected]>; +Cc: Michael Paquier <[email protected]>; Christoph Berg <[email protected]>; pgsql-hackers

On Tue, Jun 30, 2026 at 4:27 PM wenhui qiu <[email protected]> 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] 397+ messages in thread

* Re: [PATCH] Document wal_compression=on
@ 2026-06-30 09:57  Christoph Berg <[email protected]>
  parent: John Naylor <[email protected]>
  0 siblings, 1 reply; 397+ messages in thread

From: Christoph Berg @ 2026-06-30 09:57 UTC (permalink / raw)
  To: John Naylor <[email protected]>; +Cc: wenhui qiu <[email protected]>; Michael Paquier <[email protected]>; 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] 397+ messages in thread

* Re: [PATCH] Document wal_compression=on
@ 2026-06-30 10:07  John Naylor <[email protected]>
  parent: Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: John Naylor @ 2026-06-30 10:07 UTC (permalink / raw)
  To: Christoph Berg <[email protected]>; John Naylor <[email protected]>; wenhui qiu <[email protected]>; Michael Paquier <[email protected]>; pgsql-hackers

On Tue, Jun 30, 2026 at 4:57 PM Christoph Berg <[email protected]> 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] 397+ messages in thread

* Re: [PATCH] Document wal_compression=on
@ 2026-06-30 10:19  Christoph Berg <[email protected]>
  parent: Christoph Berg <[email protected]>
  0 siblings, 1 reply; 397+ messages in thread

From: Christoph Berg @ 2026-06-30 10:19 UTC (permalink / raw)
  To: John Naylor <[email protected]>; pgsql-hackers; Michael Paquier <[email protected]>

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] 397+ messages in thread

* Re: [PATCH] Document wal_compression=on
@ 2026-07-01 02:19  John Naylor <[email protected]>
  parent: Christoph Berg <[email protected]>
  0 siblings, 0 replies; 397+ messages in thread

From: John Naylor @ 2026-07-01 02:19 UTC (permalink / raw)
  To: Christoph Berg <[email protected]>; John Naylor <[email protected]>; pgsql-hackers; Michael Paquier <[email protected]>

On Tue, Jun 30, 2026 at 5:19 PM Christoph Berg <[email protected]> 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] 397+ messages in thread


end of thread, other threads:[~2026-07-01 02:19 UTC | newest]

Thread overview: 397+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2025-09-04 14:41 [PATCH v2a 2/4] Introduce ternary reloptions Nikolay Shaplov <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 09:58 [PATCH v2] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 10:04 [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-29 10:41 ` Re: [PATCH] Document wal_compression=on John Naylor <[email protected]>
2026-06-29 14:16   ` Re: [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-30 10:19     ` Re: [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-07-01 02:19       ` Re: [PATCH] Document wal_compression=on John Naylor <[email protected]>
2026-06-30 03:53   ` Re: [PATCH] Document wal_compression=on Michael Paquier <[email protected]>
2026-06-30 09:27     ` Re: [PATCH] Document wal_compression=on wenhui qiu <[email protected]>
2026-06-30 09:48       ` Re: [PATCH] Document wal_compression=on John Naylor <[email protected]>
2026-06-30 09:57         ` Re: [PATCH] Document wal_compression=on Christoph Berg <[email protected]>
2026-06-30 10:07           ` Re: [PATCH] Document wal_compression=on John Naylor <[email protected]>

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox