I found this sentence somewhat confusing: "It is possible for a column's value to change even when the trigger is not fired,"
http://www.postgresql.org/docs/devel/static/sql-createtrigger.html#SQL-CREATETRIGGER-NOTES More precise would be something along the lines "It is possible that changes to the column's value will not cause the trigger to be fired". The attached patch hopefully rewords the entire paragraph for clarity. Regards Ian Barwick
create-trigger-doc-notes-2013-03-07.patch
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