From: Tom Lane <tgl@sss.pgh.pa.us>
To: Ian Meyer <ianmmeyer@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Problem with function and trigger...
Date: Wed, 28 Sep 2005 13:52:48 -0400
Message-ID: <7747.1127929968@sss.pgh.pa.us> (raw)
In-Reply-To: <b541050805092810357cac86c0@mail.gmail.com>
References: <b541050805092810357cac86c0@mail.gmail.com>
Ian Meyer <ianmmeyer@gmail.com> writes:
> IF TG_OP = 'DELETE' AND OLD.deleted = FALSE THEN
> ERROR: record "old" is not assigned yet
> DETAIL: The tuple structure of a not-yet-assigned record is indeterminate.
> CONTEXT: PL/pgSQL function "thread_sync" line 2 at if
> What am I failing to understand with this?
We don't guarantee short-circuit evaluation of boolean expressions.
You'll have to break that into two IFs, ie,
IF TG_OP = 'DELETE' THEN
IF ... test on OLD.something ...
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, ianmmeyer@gmail.com
Subject: Re: Problem with function and trigger...
In-Reply-To: <7747.1127929968@sss.pgh.pa.us>
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