database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-16 06:01:02 +03:00
Code Activity

Have TRUNCATE update pgstat tuple counters

Browse Source 
This works by keeping a per-subtransaction record of the ins/upd/del
counters before the truncate, and then resetting them; this record is
useful to return to the previous state in case the truncate is rolled
back, either in a subtransaction or whole transaction.  The state is
propagated upwards as subtransactions commit.

When the per-table data is sent to the stats collector, a flag indicates
to reset the live/dead counters to zero as well.

Catalog version bumped due to the change in pgstat format.

Author: Alexander Shulgin
Discussion: 1007.1207238291@sss.pgh.pa.us
Discussion: 548F7D38.2000401@BlueTreble.com
Reviewed-by: Álvaro Herrera, Jim Nasby
This commit is contained in:
Alvaro Herrera
2015-02-20 12:10:01 -03:00
parent 5740be6d6e
commit d42358efb1
8 changed files with 374 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/backend/commands/tablecmds.c
View File

@ -71,6 +71,7 @@
#include "parser/parse_type.h"
#include "parser/parse_utilcmd.h"
#include "parser/parser.h"
#include "pgstat.h"
#include "rewrite/rewriteDefine.h"
#include "rewrite/rewriteHandler.h"
#include "rewrite/rewriteManip.h"
@ -1220,6 +1221,8 @@ ExecuteTruncate(TruncateStmt *stmt)
*/
reindex_relation(heap_relid, REINDEX_REL_PROCESS_TOAST);
}
pgstat_count_truncate(rel);
}
/*