| From: | "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au> |
|---|---|
| To: | "Stephan Szabo" <sszabo(at)megazone(dot)bigpanda(dot)com> |
| Cc: | "Bruce Momjian" <pgman(at)candle(dot)pha(dot)pa(dot)us>, "Peter Childs" <Blue(dot)Dragon(at)blueyonder(dot)co(dot)uk>, "PostgreSQL-development" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [GENERAL] 7.4Beta |
| Date: | 2003-08-15 05:46:25 |
| Message-ID: | 255501c362f0$909590e0$2800a8c0@mars |
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| Thread: | |
| Lists: | pgsql-general pgsql-hackers |
> > I can also attest to the horrendously long time it takes to restore the
ADD
> > FOREIGN KEY section...
>
> That really needs to be rewritten to do a single check over the table
> rather than running the constraint for every row. I keep meaning to get
> around to it and never actually do. :( I'm not sure that in practice
> you'll get a better plan at restore time depending on what the default
> statistics give you.
Surely in the default case it would reduce to using the new hashed IN()
feature, so it'd be a lot faster?
Chris
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