| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com>, Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>, Peter Childs <Blue(dot)Dragon(at)blueyonder(dot)co(dot)uk>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: ADD FOREIGN KEY (was Re: [GENERAL] 7.4Beta) |
| Date: | 2003-09-28 19:38:34 |
| Message-ID: | 10721.1064777914@sss.pgh.pa.us |
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| Lists: | pgsql-general pgsql-hackers |
Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> Tom Lane wrote:
>> Well, we haven't even *got* a proposed patch yet, but yeah we should
>> tread carefully.
> OK. What releases had this slow restore problem?
We introduced it in 7.3 --- before that, FKs were simply dumped as
"create trigger" commands, and there was no check overhead. So arguably
it is a bug; a performance bug maybe, but that's still a bug. No one
has yet gone through a dump/reload cycle in which they had to face this
penalty.
regards, tom lane
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