| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Adam Brusselback <adambrusselback(at)gmail(dot)com> |
| Cc: | Petr Jelinek <petr(dot)jelinek(at)2ndquadrant(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Discussion on missing optimizations |
| Date: | 2017-10-08 15:28:09 |
| Message-ID: | 10968.1507476489@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Adam Brusselback <adambrusselback(at)gmail(dot)com> writes:
> On another note:
>> turning ORs into UNIONs
> This is another one which would be incredibly useful for me. I've had
> to do this manually for performance reasons far too often.
Well, maybe you could sign up to help review the open patch for that then:
https://commitfest.postgresql.org/15/1001/
The reason that's not in v10 is we haven't been able to convince
ourselves whether it's 100% correct.
regards, tom lane
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