| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Andrew Koshelev <andrew(at)sgg(dot)ru> |
| Cc: | pgsql-bugs(at)postgresql(dot)org |
| Subject: | Re: Optimizer bug in subselect/view |
| Date: | 2003-03-13 15:36:19 |
| Message-ID: | 5014.1047569779@sss.pgh.pa.us |
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| Lists: | pgsql-bugs |
Andrew Koshelev <andrew(at)sgg(dot)ru> writes:
> As you can see, optimizer in earlier version of PostgreSQL skips
> unneeded data, but latest version doesn't.
CVS tip works the way you want it to. The behavior in 7.3.* is an
unfortunate side-effect of a quick-and-dirty bug fix. The less dirty
way to fix it is in CVS tip but was deemed too risky to backpatch
into 7.3.*.
regards, tom lane
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