sub_woofer <tqzeli...@yahoo.co.uk> writes: > IF (((TG_OP = 'INSERT') AND (new.subjects=TRUE)) OR ((TG_OP='UPDATE') AND > (new.subjects=TRUE) AND (old.subjects=FALSE))) THEN
You can't do that. Split the IF apart so that you don't touch NEW or
OLD in the same if-test that tries to determine if they're safe to
touch.
regards, tom lane
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