| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Hiroshi Inoue <Inoue(at)tpf(dot)co(dot)jp> |
| Cc: | Warren Volz <wrv(at)po(dot)cwru(dot)edu>, pgsql-bugs(at)postgresql(dot)org |
| Subject: | Re: Bug #514: Backend crashes periodically |
| Date: | 2001-11-13 00:26:01 |
| Message-ID: | 29438.1005611161@sss.pgh.pa.us |
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| Lists: | pgsql-bugs |
Hiroshi Inoue <Inoue(at)tpf(dot)co(dot)jp> writes:
> BTW I have a question about this example.
> Session 2 deletes no row because *session 1* already
> deleted the rows but the session_del rule seems to
> be invoked. Is it a right behavior ?
Certainly the rule should be invoked --- whether it finds any rows
cannot be determined until it's invoked, anyhow. Remember a rule
is not a trigger, it is a transform applied to the query before
we begin execution.
regards, tom lane
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