| From: | mark(at)mark(dot)mielke(dot)cc |
|---|---|
| To: | Ilia Kantor <ilia(at)obnovlenie(dot)ru> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: effective SELECT from child tables |
| Date: | 2005-09-28 13:23:27 |
| Message-ID: | 20050928132327.GA20467@mark.mielke.cc |
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| Lists: | pgsql-hackers |
On Tue, Sep 27, 2005 at 09:30:55PM +0400, Ilia Kantor wrote:
> Let table A be inherited by A1, A2, A3.
> How to select from A records where actual relations are A1, A2 ?
If A1 and A2 will be naturally together, where compared to A, or A3,
why not introduce an intermediate table?
A would be inherited by A12, and A3. A12 would be inherited by A1, and A2.
You can do the UNION yourself, as well.
Cheers,
mark
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