Not using suppress_redundant_updates_trigger in sql-createtrigger.html#examples - Mailing list pgsql-docs

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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