From: PG Doc comments form <noreply@postgresql.org>
To: pgsql-docs@lists.postgresql.org
Cc: petermpallesen@gmail.com
Subject: Not using suppress_redundant_updates_trigger in sql-createtrigger.html#examples
Date: Fri, 12 Jun 2020 09:09:09 +0000
Message-ID: <159195294959.673.5752624528747900508@wrigleys.postgresql.org> (raw)
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/12/bug-reporting.html
Description:
Hi
I was stumbling across the trigger function
‘suppress_redundant_updates_trigger’ in
https://www.postgresql.org/docs/devel/functions-trigger.html and I would
just ask if there is any reason of this not being int the documentation in
https://www.postgresql.org/docs/13/sql-createtrigger.html.
So after
Call a function to log updates of accounts, but only if something changed:
CREATE TRIGGER log_update
AFTER UPDATE ON accounts
FOR EACH ROW
WHEN (OLD.* IS DISTINCT FROM NEW.*)
EXECUTE FUNCTION log_account_update();
There could be an alternative implementation as well
CREATE TRIGGER log_update
AFTER UPDATE ON accounts
FOR EACH ROW
EXECUTE FUNCTION log_account_update();
CREATE TRIGGER suppress_redundant_account_after_updates
AFTER UPDATE ON accounts
FOR EACH ROW EXECUTE FUNCTION suppress_redundant_updates_trigger();
Just to introduce and like the feature.
Thank you for your great work best regards
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Subject: Re: Not using suppress_redundant_updates_trigger in sql-createtrigger.html#examples
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