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-rw-r--r--src/test/regress/expected/async.out8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/test/regress/expected/async.out b/src/test/regress/expected/async.out
index ae0d5df3b78..19cbe38e636 100644
--- a/src/test/regress/expected/async.out
+++ b/src/test/regress/expected/async.out
@@ -32,3 +32,11 @@ NOTIFY notify_async2;
LISTEN notify_async2;
UNLISTEN notify_async2;
UNLISTEN *;
+-- Should return zero while there are no pending notifications.
+-- src/test/isolation/specs/async-notify.spec tests for actual usage.
+SELECT pg_notification_queue_usage();
+ pg_notification_queue_usage
+-----------------------------
+ 0
+(1 row)
+