Fix typos in comments.

Also adjust the phrasing in the comments.

Author: Etsuro Fujita <[email protected]>
Author: Heikki Linnakangas <[email protected]>
Reviewed-by: Tender Wang <[email protected]>
Reviewed-by: Gurjeet Singh <[email protected]>
Reviewed-by: Michael Paquier <[email protected]>
Discussion: https://postgr.es/m/CAPmGK17%3DPHSDZ%2B0G6jcj12buyyE1bQQc3sbp1Wxri7tODT-SDw%40mail.gmail.com
Backpatch-through: 15

4 files changed, 8 insertions, 8 deletions

diff --git a/src/backend/utils/activity/pgstat_database.c b/src/backend/utils/activity/pgstat_database.c
index 29bc0909748..10ee3e57a89 100644
--- a/src/backend/utils/activity/pgstat_database.c
+++ b/src/backend/utils/activity/pgstat_database.c
@@ -368,8 +368,8 @@ pgstat_reset_database_timestamp(Oid dboid, TimestampTz ts)
 /*
  * Flush out pending stats for the entry
  *
- * If nowait is true, this function returns false if lock could not
- * immediately acquired, otherwise true is returned.
+ * If nowait is true and the lock could not be immediately acquired, returns
+ * false without flushing the entry.  Otherwise returns true.
  */
 bool
 pgstat_database_flush_cb(PgStat_EntryRef *entry_ref, bool nowait)
diff --git a/src/backend/utils/activity/pgstat_function.c b/src/backend/utils/activity/pgstat_function.c
index d26da551a4e..709b8e6726e 100644
--- a/src/backend/utils/activity/pgstat_function.c
+++ b/src/backend/utils/activity/pgstat_function.c
@@ -186,8 +186,8 @@ pgstat_end_function_usage(PgStat_FunctionCallUsage *fcu, bool finalize)
 /*
  * Flush out pending stats for the entry
  *
- * If nowait is true, this function returns false if lock could not
- * immediately acquired, otherwise true is returned.
+ * If nowait is true and the lock could not be immediately acquired, returns
+ * false without flushing the entry.  Otherwise returns true.
  */
 bool
 pgstat_function_flush_cb(PgStat_EntryRef *entry_ref, bool nowait)
diff --git a/src/backend/utils/activity/pgstat_relation.c b/src/backend/utils/activity/pgstat_relation.c
index 8a3f7d434cf..383b2dbe3e8 100644
--- a/src/backend/utils/activity/pgstat_relation.c
+++ b/src/backend/utils/activity/pgstat_relation.c
@@ -792,8 +792,8 @@ pgstat_twophase_postabort(TransactionId xid, uint16 info,
 /*
  * Flush out pending stats for the entry
  *
- * If nowait is true, this function returns false if lock could not
- * immediately acquired, otherwise true is returned.
+ * If nowait is true and the lock could not be immediately acquired, returns
+ * false without flushing the entry.  Otherwise returns true.
  *
  * Some of the stats are copied to the corresponding pending database stats
  * entry when successfully flushing.
diff --git a/src/backend/utils/activity/pgstat_subscription.c b/src/backend/utils/activity/pgstat_subscription.c
index d9af8de6587..fdfe92ad958 100644
--- a/src/backend/utils/activity/pgstat_subscription.c
+++ b/src/backend/utils/activity/pgstat_subscription.c
@@ -81,8 +81,8 @@ pgstat_fetch_stat_subscription(Oid subid)
 /*
  * Flush out pending stats for the entry
  *
- * If nowait is true, this function returns false if lock could not
- * immediately acquired, otherwise true is returned.
+ * If nowait is true and the lock could not be immediately acquired, returns
+ * false without flushing the entry.  Otherwise returns true.
  */
 bool
 pgstat_subscription_flush_cb(PgStat_EntryRef *entry_ref, bool nowait)