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a04bb65f70
This tells you what fraction of NOTIFY's queue is currently filled. Brendan Jurd, reviewed by Merlin Moncure and Gurjeet Singh. A few further tweaks by me.
24 lines
767 B
SQL
24 lines
767 B
SQL
--
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-- ASYNC
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--
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--Should work. Send a valid message via a valid channel name
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SELECT pg_notify('notify_async1','sample message1');
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SELECT pg_notify('notify_async1','');
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SELECT pg_notify('notify_async1',NULL);
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-- Should fail. Send a valid message via an invalid channel name
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SELECT pg_notify('','sample message1');
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SELECT pg_notify(NULL,'sample message1');
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SELECT pg_notify('notify_async_channel_name_too_long______________________________','sample_message1');
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--Should work. Valid NOTIFY/LISTEN/UNLISTEN commands
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NOTIFY notify_async2;
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LISTEN notify_async2;
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UNLISTEN notify_async2;
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UNLISTEN *;
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-- Should return zero while there are no pending notifications.
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-- src/test/isolation/specs/async-notify.spec tests for actual usage.
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SELECT pg_notification_queue_usage();
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