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* Hot standby v5d, fails to build on windows
@ 2008-11-11 07:09 Jaime Casanova <jcasanov@systemguards.com.ec>
0 siblings, 0 replies; 19+ messages in thread
From: Jaime Casanova @ 2008-11-11 07:09 UTC (permalink / raw)
To: pgsql-hackers
Hi,
Seems like you can't use "uint" on windows, it fails trying to compile this:
typedef struct xl_xact_commit
{
TimestampTz xact_time; /* time of commit */
+ int slotId; /* slotId in procarray */
+ uint xinfo; /* info flags */
The error message is:
"""
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement
-Wendif-labels -fno-strict-aliasing -fwrapv -g
-I../../../../src/include -I./src/include/port/win32 -DEXEC_BACKEND
"-I../../../../src/include/port/win32" -DBUILDING_DLL -c -o heapam.o
heapam.c -MMD -MP -MF .deps/heapam.Po
In file included from heapam.c:50:
../../../../src/include/access/xact.h:109: error: syntax error before "uint"
../../../../src/include/access/xact.h:109: warning: no semicolon at
end of struct or union
../../../../src/include/access/xact.h:117: error: syntax error before '}' token
../../../../src/include/access/xact.h:117: warning: type defaults to
`int' in declaration of `xl_xact_commit'
../../../../src/include/access/xact.h:117: warning: data definition
has no type or storage class
"""
I was able to compile changing uint for uint32 but i'm not sure if
that is the aproppiate type...
--
Atentamente,
Jaime Casanova
Soporte y capacitación de PostgreSQL
AsesorÃa y desarrollo de sistemas
Guayaquil - Ecuador
Cel. +59387171157
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v22 01/10] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 7ef2ec9972..1b67ef4be8 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -25917,7 +25917,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--d6Gm4EdcadzBjdND
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v22-0002-pg_stat_file-and-pg_ls_dir_-to-use-lstat.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v31 01/11] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 74d3087a72..d36479d86d 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -27410,7 +27410,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--qZVVwWJgpX9Jzs7f
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v31-0002-Add-tests-on-pg_ls_dir-before-changing-it.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v30 01/11] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 6388385edc..7a830f0684 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -27004,7 +27004,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--ZwgA9U+XZDXt4+m+
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v30-0002-Add-tests-on-pg_ls_dir-before-changing-it.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v30 01/11] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 6388385edc..7a830f0684 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -27004,7 +27004,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--ZwgA9U+XZDXt4+m+
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v30-0002-Add-tests-on-pg_ls_dir-before-changing-it.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v28 01/11] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 0606b6a9aa..aa0dcde886 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -27018,7 +27018,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--vk/v8fjDPiDepTtA
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v28-0002-Add-tests-on-pg_ls_dir-before-changing-it.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v25 01/11] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index df29af6371..7cafdb9107 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -25897,7 +25897,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--SBikYMzjhZGK9d4p
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v25-0002-pg_stat_file-and-pg_ls_dir_-to-use-lstat.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v24 01/11] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 507bc1a668..9c0ad7a334 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -25904,7 +25904,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--mPTHnM80CEnHQ2WJ
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v24-0002-pg_stat_file-and-pg_ls_dir_-to-use-lstat.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v33 01/11] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 0ee6974f1c6..d32b414e04f 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -27563,7 +27563,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.1
--9CzcV6dAFIr7O1Ie
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v33-0002-Add-tests-before-changing-pg_ls_.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v36 1/7] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 7b652460a18..933118203f4 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -28661,6 +28661,10 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
platforms only), file creation time stamp (Windows only), and a flag
indicating if it is a directory.
</para>
+ <para>
+ If filename is a link, this function returns information about the file
+ or directory the link refers to.
+ </para>
<para>
This function is restricted to superusers by default, but other users
can be granted EXECUTE to run the function.
--
2.17.1
--4ybNbZnZ8tziJ7D6
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v36-0002-Add-tests-before-changing-pg_ls_.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v34 01/15] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 8a802fb2253..0be4743e3ed 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -27618,7 +27618,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.1
--smOfPzt+Qjm5bNGJ
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v34-0002-Add-tests-before-changing-pg_ls_.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v35 1/7] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 4001cb2bda5..d01aeec9f88 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -27631,6 +27631,10 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
platforms only), file creation time stamp (Windows only), and a flag
indicating if it is a directory.
</para>
+ <para>
+ If filename is a link, this function returns information about the file
+ or directory the link refers to.
+ </para>
<para>
This function is restricted to superusers by default, but other users
can be granted EXECUTE to run the function.
--
2.17.1
--olLTNZSltDMg5Vbm
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v35-0002-Add-tests-before-changing-pg_ls_.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v32 01/11] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index e58efce5865..b5c1befe627 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -27495,7 +27495,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--Bne5rrxQd65beI7a
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v32-0002-Add-tests-on-pg_ls_dir-before-changing-it.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v31 01/11] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 74d3087a72..d36479d86d 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -27410,7 +27410,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--qZVVwWJgpX9Jzs7f
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v31-0002-Add-tests-on-pg_ls_dir-before-changing-it.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v20 01/10] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 959f6a1c2f..7ef8c7a847 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -25911,7 +25911,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--Z1Z8UV8BNhgCynIS
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v20-0002-pg_stat_file-and-pg_ls_dir_-to-use-lstat.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v19 01/10] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index b7c450ea29..9f47745c5a 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -25881,7 +25881,7 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
Returns a record containing the file's size, last access time stamp,
last modification time stamp, last file status change time stamp (Unix
platforms only), file creation time stamp (Windows only), and a flag
- indicating if it is a directory.
+ indicating if it is a directory (or a symbolic link to a directory).
</para>
<para>
This function is restricted to superusers by default, but other users
--
2.17.0
--S0GG+JvAI2G0KxBG
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v19-0002-pg_stat_file-and-pg_ls_dir_-to-use-lstat.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v15 01/10] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 7a0bb0c70a..25b1278459 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -21558,7 +21558,8 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
size, last accessed time stamp, last modified time stamp,
last file status change time stamp (Unix platforms only),
file creation time stamp (Windows only), and a <type>boolean</type>
- indicating if it is a directory. Typical usages include:
+ indicating if it is a directory (or a symbolic link to a directory).
+ Typical usages include:
<programlisting>
SELECT * FROM pg_stat_file('filename');
SELECT (pg_stat_file('filename')).modification;
--
2.17.0
--8w3uRX/HFJGApMzv
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v15-0002-pg_stat_file-and-pg_ls_dir_-to-use-lstat.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v37 01/11] Document historic behavior of links to directories..
@ 2020-03-16 19:12 Justin Pryzby <pryzbyj@telsasoft.com>
0 siblings, 0 replies; 19+ messages in thread
From: Justin Pryzby @ 2020-03-16 19:12 UTC (permalink / raw)
Backpatch to 9.5: pg_stat_file
---
doc/src/sgml/func.sgml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 6e0425cb3dc..d958c3e74ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -27700,6 +27700,10 @@ SELECT convert_from(pg_read_binary_file('file_in_utf8.txt'), 'UTF8');
platforms only), file creation time stamp (Windows only), and a flag
indicating if it is a directory.
</para>
+ <para>
+ If filename is a link, this function returns information about the file
+ or directory the link refers to.
+ </para>
<para>
This function is restricted to superusers by default, but other users
can be granted EXECUTE to run the function.
--
2.25.1
--Pk/CTwBz1VvfPIDp
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v37-0002-Add-tests-before-changing-pg_ls_.patch"
^ permalink raw reply [nested|flat] 19+ messages in thread
* [PATCH v2 8/9] convert ParallelBlockTableScanDescData->phs_{start,num}block to atomics
@ 2026-07-09 20:21 Nathan Bossart <nathan@postgresql.org>
0 siblings, 0 replies; 19+ messages in thread
From: Nathan Bossart @ 2026-07-09 20:21 UTC (permalink / raw)
---
src/backend/access/heap/heapam_handler.c | 2 +-
src/backend/access/table/tableam.c | 59 +++++++++++-------------
src/include/access/relscan.h | 8 ++--
3 files changed, 31 insertions(+), 38 deletions(-)
diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
index bf87430cf01..0f24a132564 100644
--- a/src/backend/access/heap/heapam_handler.c
+++ b/src/backend/access/heap/heapam_handler.c
@@ -1965,7 +1965,7 @@ heapam_scan_get_blocks_done(HeapScanDesc hscan)
if (hscan->rs_base.rs_parallel != NULL)
{
bpscan = (ParallelBlockTableScanDesc) hscan->rs_base.rs_parallel;
- startblock = bpscan->phs_startblock;
+ startblock = pg_atomic_read_u32(&bpscan->phs_startblock);
}
else
startblock = hscan->rs_startblock;
diff --git a/src/backend/access/table/tableam.c b/src/backend/access/table/tableam.c
index 68ff0966f1c..f2038ea9205 100644
--- a/src/backend/access/table/tableam.c
+++ b/src/backend/access/table/tableam.c
@@ -421,9 +421,8 @@ table_block_parallelscan_initialize(Relation rel, ParallelTableScanDesc pscan)
bpscan->base.phs_syncscan = synchronize_seqscans &&
!RelationUsesLocalBuffers(rel) &&
bpscan->phs_nblocks > NBuffers / 4;
- SpinLockInit(&bpscan->phs_mutex);
- bpscan->phs_startblock = InvalidBlockNumber;
- bpscan->phs_numblock = InvalidBlockNumber;
+ pg_atomic_init_u32(&bpscan->phs_startblock, InvalidBlockNumber);
+ pg_atomic_init_u32(&bpscan->phs_numblock, InvalidBlockNumber);
pg_atomic_init_u64(&bpscan->phs_nallocated, 0);
return sizeof(ParallelBlockTableScanDescData);
@@ -459,25 +458,22 @@ table_block_parallelscan_startblock_init(Relation rel,
StaticAssertDecl(MaxBlockNumber <= 0xFFFFFFFE,
"pg_nextpower2_32 may be too small for non-standard BlockNumber width");
- BlockNumber sync_startpage = InvalidBlockNumber;
BlockNumber scan_nblocks;
/* Reset the state we use for controlling allocation size. */
memset(pbscanwork, 0, sizeof(*pbscanwork));
-retry:
- /* Grab the spinlock. */
- SpinLockAcquire(&pbscan->phs_mutex);
-
/*
* When the caller specified a limit on the number of blocks to scan, set
* that in the ParallelBlockTableScanDesc, if it's not been done by
* another worker already.
*/
- if (numblocks != InvalidBlockNumber &&
- pbscan->phs_numblock == InvalidBlockNumber)
+ if (numblocks != InvalidBlockNumber)
{
- pbscan->phs_numblock = numblocks;
+ uint32 expected = InvalidBlockNumber;
+
+ pg_atomic_compare_exchange_u32(&pbscan->phs_numblock, &expected,
+ numblocks);
}
/*
@@ -485,36 +481,35 @@ retry:
* so now. If a startblock was specified, start there, otherwise if this
* is not a synchronized scan, we just start at block 0, but if it is a
* synchronized scan, we must get the starting position from the
- * synchronized scan machinery. We can't hold the spinlock while doing
- * that, though, so release the spinlock, get the information we need, and
- * retry. If nobody else has initialized the scan in the meantime, we'll
- * fill in the value we fetched on the second time through.
+ * synchronized scan machinery.
+ *
+ * If another worker initializes phs_startblock concurrently, just use
+ * their value.
*/
- if (pbscan->phs_startblock == InvalidBlockNumber)
+ if (pg_atomic_read_u32(&pbscan->phs_startblock) == InvalidBlockNumber)
{
+ BlockNumber newstartblock;
+ uint32 expected = InvalidBlockNumber;
+
if (startblock != InvalidBlockNumber)
- pbscan->phs_startblock = startblock;
+ newstartblock = startblock;
else if (!pbscan->base.phs_syncscan)
- pbscan->phs_startblock = 0;
- else if (sync_startpage != InvalidBlockNumber)
- pbscan->phs_startblock = sync_startpage;
+ newstartblock = 0;
else
- {
- SpinLockRelease(&pbscan->phs_mutex);
- sync_startpage = ss_get_location(rel, pbscan->phs_nblocks);
- goto retry;
- }
+ newstartblock = ss_get_location(rel, pbscan->phs_nblocks);
+
+ pg_atomic_compare_exchange_u32(&pbscan->phs_startblock, &expected,
+ newstartblock);
}
- SpinLockRelease(&pbscan->phs_mutex);
/*
* Figure out how many blocks we're going to scan; either all of them, or
* just phs_numblock's worth, if a limit has been imposed.
*/
- if (pbscan->phs_numblock == InvalidBlockNumber)
+ if (pg_atomic_read_u32(&pbscan->phs_numblock) == InvalidBlockNumber)
scan_nblocks = pbscan->phs_nblocks;
else
- scan_nblocks = pbscan->phs_numblock;
+ scan_nblocks = pg_atomic_read_u32(&pbscan->phs_numblock);
/*
* We determine the chunk size based on scan_nblocks. First we split
@@ -595,10 +590,10 @@ table_block_parallelscan_nextpage(Relation rel,
*/
/* First, figure out how many blocks we're planning on scanning */
- if (pbscan->phs_numblock == InvalidBlockNumber)
+ if (pg_atomic_read_u32(&pbscan->phs_numblock) == InvalidBlockNumber)
scan_nblocks = pbscan->phs_nblocks;
else
- scan_nblocks = pbscan->phs_numblock;
+ scan_nblocks = pg_atomic_read_u32(&pbscan->phs_numblock);
/*
* Now check if we have any remaining blocks in a previous chunk for this
@@ -644,7 +639,7 @@ table_block_parallelscan_nextpage(Relation rel,
if (nallocated >= scan_nblocks)
page = InvalidBlockNumber; /* all blocks have been allocated */
else
- page = (nallocated + pbscan->phs_startblock) % pbscan->phs_nblocks;
+ page = (nallocated + pg_atomic_read_u32(&pbscan->phs_startblock)) % pbscan->phs_nblocks;
/*
* Report scan location. Normally, we report the current page number.
@@ -658,7 +653,7 @@ table_block_parallelscan_nextpage(Relation rel,
if (page != InvalidBlockNumber)
ss_report_location(rel, page);
else if (nallocated == pbscan->phs_nblocks)
- ss_report_location(rel, pbscan->phs_startblock);
+ ss_report_location(rel, pg_atomic_read_u32(&pbscan->phs_startblock));
}
return page;
diff --git a/src/include/access/relscan.h b/src/include/access/relscan.h
index 2ea06a67a63..2305d0159f3 100644
--- a/src/include/access/relscan.h
+++ b/src/include/access/relscan.h
@@ -19,7 +19,6 @@
#include "nodes/tidbitmap.h"
#include "port/atomics.h"
#include "storage/relfilelocator.h"
-#include "storage/spin.h"
#include "utils/relcache.h"
@@ -99,10 +98,9 @@ typedef struct ParallelBlockTableScanDescData
ParallelTableScanDescData base;
BlockNumber phs_nblocks; /* # blocks in relation at start of scan */
- slock_t phs_mutex; /* mutual exclusion for setting startblock */
- BlockNumber phs_startblock; /* starting block number */
- BlockNumber phs_numblock; /* # blocks to scan, or InvalidBlockNumber if
- * no limit */
+ pg_atomic_uint32 phs_startblock; /* starting block number */
+ pg_atomic_uint32 phs_numblock; /* # blocks to scan, or InvalidBlockNumber
+ * if no limit */
pg_atomic_uint64 phs_nallocated; /* number of blocks allocated to
* workers so far. */
} ParallelBlockTableScanDescData;
--
2.50.1 (Apple Git-155)
--Xf36GNcW+0xZNily
Content-Type: text/plain; charset=us-ascii
Content-Disposition: attachment;
filename=v2-0009-convert-FastPathStrongRelationLocks-to-atomics.patch
^ permalink raw reply [nested|flat] 19+ messages in thread
end of thread, other threads:[~2026-07-09 20:21 UTC | newest]
Thread overview: 19+ messages (download: mbox mbox.gz follow: Atom feed)
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2020-03-16 19:12 [PATCH v31 01/11] Document historic behavior of links to directories.. Justin Pryzby <pryzbyj@telsasoft.com>
2020-03-16 19:12 [PATCH v35 1/7] Document historic behavior of links to directories.. Justin Pryzby <pryzbyj@telsasoft.com>
2020-03-16 19:12 [PATCH v19 01/10] Document historic behavior of links to directories.. Justin Pryzby <pryzbyj@telsasoft.com>
2020-03-16 19:12 [PATCH v30 01/11] Document historic behavior of links to directories.. Justin Pryzby <pryzbyj@telsasoft.com>
2020-03-16 19:12 [PATCH v25 01/11] Document historic behavior of links to directories.. Justin Pryzby <pryzbyj@telsasoft.com>
2020-03-16 19:12 [PATCH v33 01/11] Document historic behavior of links to directories.. Justin Pryzby <pryzbyj@telsasoft.com>
2020-03-16 19:12 [PATCH v31 01/11] Document historic behavior of links to directories.. Justin Pryzby <pryzbyj@telsasoft.com>
2026-07-09 20:21 [PATCH v2 8/9] convert ParallelBlockTableScanDescData->phs_{start,num}block to atomics Nathan Bossart <nathan@postgresql.org>
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