diff options
Diffstat (limited to 'src/backend/postmaster/autovacuum.c')
| -rw-r--r-- | src/backend/postmaster/autovacuum.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/src/backend/postmaster/autovacuum.c b/src/backend/postmaster/autovacuum.c index 1081cf83e9c..ba9b87ed609 100644 --- a/src/backend/postmaster/autovacuum.c +++ b/src/backend/postmaster/autovacuum.c @@ -10,7 +10,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/postmaster/autovacuum.c,v 1.5 2005/10/15 02:49:23 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/postmaster/autovacuum.c,v 1.5.2.1 2005/11/22 18:23:15 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -244,8 +244,8 @@ AutoVacMain(int argc, char *argv[]) * backend, so we use the same signal handling. See equivalent code in * tcop/postgres.c. * - * Currently, we don't pay attention to postgresql.conf changes that happen - * during a single daemon iteration, so we can ignore SIGHUP. + * Currently, we don't pay attention to postgresql.conf changes that + * happen during a single daemon iteration, so we can ignore SIGHUP. */ pqsignal(SIGHUP, SIG_IGN); @@ -308,9 +308,10 @@ AutoVacMain(int argc, char *argv[]) * recently auto-vacuumed, or one that needs database-wide vacuum (to * prevent Xid wraparound-related data loss). * - * Note that a database with no stats entry is not considered, except for Xid - * wraparound purposes. The theory is that if no one has ever connected - * to it since the stats were last initialized, it doesn't need vacuuming. + * Note that a database with no stats entry is not considered, except for + * Xid wraparound purposes. The theory is that if no one has ever + * connected to it since the stats were last initialized, it doesn't need + * vacuuming. * * XXX This could be improved if we had more info about whether it needs * vacuuming before connecting to it. Perhaps look through the pgstats @@ -336,8 +337,8 @@ AutoVacMain(int argc, char *argv[]) * decide to start giving warnings. If any such db is found, we * ignore all other dbs. * - * Unlike vacuum.c, we also look at vacuumxid. This is so that pg_clog - * can be kept trimmed to a reasonable size. + * Unlike vacuum.c, we also look at vacuumxid. This is so that + * pg_clog can be kept trimmed to a reasonable size. */ freeze_age = (int32) (nextXid - tmp->frozenxid); vacuum_age = (int32) (nextXid - tmp->vacuumxid); @@ -571,10 +572,10 @@ do_autovacuum(PgStat_StatDBEntry *dbentry) /* * Scan pg_class and determine which tables to vacuum. * - * The stats subsystem collects stats for toast tables independently of the - * stats for their parent tables. We need to check those stats since in - * cases with short, wide tables there might be proportionally much more - * activity in the toast table than in its parent. + * The stats subsystem collects stats for toast tables independently of + * the stats for their parent tables. We need to check those stats since + * in cases with short, wide tables there might be proportionally much + * more activity in the toast table than in its parent. * * Since we can only issue VACUUM against the parent table, we need to * transpose a decision to vacuum a toast table into a decision to vacuum |