database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-28 23:42:10 +03:00
Code Activity

Add unchangeable GUC "variables" segment_size, wal_block_size, and

Browse Source 
wal_segment_size to make those configuration parameters available to clients,
in the same way that block_size was previously exposed.  Bernd Helmle, with
comments from Abhijit Menon-Sen and some further tweaking by me.
This commit is contained in:
Tom Lane
2008-07-10 22:08:17 +00:00
parent eaf1b5d348
commit 7a97abe818
2 changed files with 85 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
src/backend/utils/misc/guc.c
View File

@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.463 2008/07/08 02:07:29 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.464 2008/07/10 22:08:17 tgl Exp $
*
*--------------------------------------------------------------------
*/
@ -377,6 +377,9 @@ static int max_function_args;
static int max_index_keys;
static int max_identifier_length;
static int block_size;
static int segment_size;
static int wal_block_size;
static int wal_segment_size;
static bool integer_datetimes;
/* should be static, but commands/variable.c needs to get at these */
@ -1753,6 +1756,39 @@ static struct config_int ConfigureNamesInt[] =
BLCKSZ, BLCKSZ, BLCKSZ, NULL, NULL
},
{
{"segment_size", PGC_INTERNAL, PRESET_OPTIONS,
gettext_noop("Shows the number of pages per disk file."),
NULL,
GUC_UNIT_BLOCKS | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE
},
&segment_size,
RELSEG_SIZE, RELSEG_SIZE, RELSEG_SIZE, NULL, NULL
},
{
{"wal_block_size", PGC_INTERNAL, PRESET_OPTIONS,
gettext_noop("Shows the block size in the write ahead log."),
NULL,
GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE
},
&wal_block_size,
XLOG_BLCKSZ, XLOG_BLCKSZ, XLOG_BLCKSZ, NULL, NULL
},
{
{"wal_segment_size", PGC_INTERNAL, PRESET_OPTIONS,
gettext_noop("Shows the number of pages per write ahead log segment."),
NULL,
GUC_UNIT_XBLOCKS | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE
},
&wal_segment_size,
(XLOG_SEG_SIZE / XLOG_BLCKSZ),
(XLOG_SEG_SIZE / XLOG_BLCKSZ),
(XLOG_SEG_SIZE / XLOG_BLCKSZ),
NULL, NULL
},
{
{"autovacuum_naptime", PGC_SIGHUP, AUTOVACUUM,
gettext_noop("Time to sleep between autovacuum runs."),