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Diffstat (limited to 'src/backend/postmaster/pgstat.c')
-rw-r--r--src/backend/postmaster/pgstat.c28
1 files changed, 14 insertions, 14 deletions
diff --git a/src/backend/postmaster/pgstat.c b/src/backend/postmaster/pgstat.c
index 6757df397cf..8cbed1d1bc3 100644
--- a/src/backend/postmaster/pgstat.c
+++ b/src/backend/postmaster/pgstat.c
@@ -693,9 +693,9 @@ allow_immediate_pgstat_restart(void)
/*
* Shut down a single backend's statistics reporting at process exit.
*
- * Flush any remaining statistics counts out to the collector.
- * Without this, operations triggered during backend exit (such as
- * temp table deletions) won't be counted.
+ * Flush out any remaining statistics counts. Without this, operations
+ * triggered during backend exit (such as temp table deletions) won't be
+ * counted.
*/
static void
pgstat_shutdown_hook(int code, Datum arg)
@@ -703,10 +703,10 @@ pgstat_shutdown_hook(int code, Datum arg)
Assert(!pgstat_is_shutdown);
/*
- * If we got as far as discovering our own database ID, we can report what
- * we did to the collector. Otherwise, we'd be sending an invalid
- * database ID, so forget it. (This means that accesses to pg_database
- * during failed backend starts might never get counted.)
+ * If we got as far as discovering our own database ID, we can flush out
+ * what we did so far. Otherwise, we'd be reporting an invalid database
+ * ID, so forget it. (This means that accesses to pg_database during
+ * failed backend starts might never get counted.)
*/
if (OidIsValid(MyDatabaseId))
pgstat_report_stat(true);
@@ -1065,7 +1065,7 @@ pgstat_collect_oids(Oid catalogid, AttrNumber anum_oid)
}
/*
- * Tell the statistics collector to reset counters for our database.
+ * Reset counters for our database.
*
* Permission checking for this function is managed through the normal
* GRANT system.
@@ -1084,7 +1084,7 @@ pgstat_reset_counters(void)
}
/*
- * Tell the statistics collector to reset a single counter.
+ * Reset a single counter.
*
* Permission checking for this function is managed through the normal
* GRANT system.
@@ -1106,7 +1106,7 @@ pgstat_reset_single_counter(Oid objoid, PgStat_Single_Reset_Type type)
}
/*
- * Tell the statistics collector to reset cluster-wide shared counters.
+ * Reset cluster-wide shared counters.
*
* Permission checking for this function is managed through the normal
* GRANT system.
@@ -1198,8 +1198,8 @@ pgstat_clear_snapshot(void)
/*
* Support function for the SQL-callable pgstat* functions. Returns
* the collected statistics for one database or NULL. NULL doesn't mean
- * that the database doesn't exist, it is just not yet known by the
- * collector, so the caller is better off to report ZERO instead.
+ * that the database doesn't exist, just that there are no statistics, so the
+ * caller is better off to report ZERO instead.
*/
PgStat_StatDBEntry *
pgstat_fetch_stat_dbentry(Oid dbid)
@@ -1233,8 +1233,8 @@ pgstat_fetch_global(void)
/*
* Support function for the SQL-callable pgstat* functions. Returns
* the collected statistics for one table or NULL. NULL doesn't mean
- * that the table doesn't exist, it is just not yet known by the
- * collector, so the caller is better off to report ZERO instead.
+ * that the table doesn't exist, just that there are no statistics, so the
+ * caller is better off to report ZERO instead.
*/
PgStat_StatTabEntry *
pgstat_fetch_stat_tabentry(Oid relid)