db/pgbackrest
1
0
Fork 0
mirror of https://github.com/pgbackrest/pgbackrest.git synced 2025-07-03 00:26:59 +02:00
Code Issues Releases Activity

Move WAL constants to postgres/interface header.

Browse Source
This commit is contained in:
Cynthia Shang
2020-09-08 12:44:08 -04:00
committed by David Steele
parent b8efb13bcb
commit fead004691
2 changed files with 14 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/postgres/interface.c
View File

@ -42,14 +42,6 @@ STRING_STATIC(PG_PATH_PGXACT_STR, "pg_xact");
STRING_STATIC(PG_NAME_LSN_STR, "lsn");
STRING_STATIC(PG_NAME_LOCATION_STR, "location");
/***********************************************************************************************************************************
Define default wal segment size
Before PostgreSQL 11 WAL segment size could only be changed at compile time and is not known to be well-tested, so only the default
WAL segment size is supported for versions below 11.
***********************************************************************************************************************************/
#define PG_WAL_SEGMENT_SIZE_DEFAULT ((unsigned int)(16 * 1024 * 1024))
/***********************************************************************************************************************************
Control file size. The control file is actually 8192 bytes but only the first 512 bytes are used to prevent torn pages even on
really old storage with 512-byte sectors. This is true across all versions of PostgreSQL.
@ -57,12 +49,6 @@ really old storage with 512-byte sectors. This is true across all versions of P
#define PG_CONTROL_SIZE ((unsigned int)(8 * 1024))
#define PG_CONTROL_DATA_SIZE ((unsigned int)(512))
/***********************************************************************************************************************************
WAL header size. It doesn't seem worth tracking the exact size of the WAL header across versions of PostgreSQL so just set it to
something far larger needed but <= the minimum read size on just about any system.
***********************************************************************************************************************************/
#define PG_WAL_HEADER_SIZE ((unsigned int)(512))
/***********************************************************************************************************************************
Name of default PostgreSQL database used for running all queries and commands
***********************************************************************************************************************************/

14
src/postgres/interface.h
View File

@ -86,6 +86,20 @@ Segment size can only be changed at compile time and is not known to be well-tes
#define PG_SEGMENT_SIZE_DEFAULT ((unsigned int)(1 * 1024 * 1024 * 1024))
#define PG_SEGMENT_PAGE_DEFAULT (PG_SEGMENT_SIZE_DEFAULT / PG_PAGE_SIZE_DEFAULT)
/***********************************************************************************************************************************
WAL header size. It doesn't seem worth tracking the exact size of the WAL header across versions of PostgreSQL so just set it to
something far larger needed but <= the minimum read size on just about any system.
***********************************************************************************************************************************/
#define PG_WAL_HEADER_SIZE ((unsigned int)(512))
/***********************************************************************************************************************************
Define default wal segment size
Before PostgreSQL 11 WAL segment size could only be changed at compile time and is not known to be well-tested, so only the default
WAL segment size is supported for versions below 11.
***********************************************************************************************************************************/
#define PG_WAL_SEGMENT_SIZE_DEFAULT ((unsigned int)(16 * 1024 * 1024))
/***********************************************************************************************************************************
PostgreSQL Control File Info
***********************************************************************************************************************************/