diff options
| author | Tom Lane | 2007-06-08 18:23:53 +0000 |
|---|---|---|
| committer | Tom Lane | 2007-06-08 18:23:53 +0000 |
| commit | a04a423599b347325f9a73dfb2d533b24e1cbab3 (patch) | |
| tree | 5aeb620900a705222eb202c7b4b1d33266d1c190 /src/include/pg_config_manual.h | |
| parent | 6d6d14b6d52f7a709fba8fd23244a7de014f2048 (diff) | |
Arrange for large sequential scans to synchronize with each other, so that
when multiple backends are scanning the same relation concurrently, each page
is (ideally) read only once.
Jeff Davis, with review by Heikki and Tom.
Diffstat (limited to 'src/include/pg_config_manual.h')
| -rw-r--r-- | src/include/pg_config_manual.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/include/pg_config_manual.h b/src/include/pg_config_manual.h index a5b3f98a8eb..354a3d370eb 100644 --- a/src/include/pg_config_manual.h +++ b/src/include/pg_config_manual.h @@ -6,7 +6,7 @@ * for developers. If you edit any of these, be sure to do a *full* * rebuild (and an initdb if noted). * - * $PostgreSQL: pgsql/src/include/pg_config_manual.h,v 1.26 2007/02/23 21:36:19 momjian Exp $ + * $PostgreSQL: pgsql/src/include/pg_config_manual.h,v 1.27 2007/06/08 18:23:53 tgl Exp $ *------------------------------------------------------------------------ */ @@ -250,6 +250,11 @@ #define TRACE_SORT 1 /* + * Enable tracing of syncscan operations (see also the trace_syncscan GUC var). + */ +/* #define TRACE_SYNCSCAN */ + +/* * Other debug #defines (documentation, anyone?) */ /* #define HEAPDEBUGALL */ |