| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Alban Hertroys <alban(at)magproductions(dot)nl> |
| Cc: | pgsql-general(at)postgreSQL(dot)org, pgsql-hackers(at)postgreSQL(dot)org |
| Subject: | Re: Queries joining views |
| Date: | 2006-08-22 19:52:30 |
| Message-ID: | 11034.1156276350@sss.pgh.pa.us |
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| Thread: | |
| Lists: | pgsql-general pgsql-hackers |
I wrote:
> Thanks. After digging through it a bit, I understand what's happening,
> but I'm not seeing any simple fix.
I forgot to mention that although I could reproduce your bad plan in
8.1, CVS HEAD doesn't fall into the trap. I don't believe we've done
anything to fix the fundamental problem however --- it may just be a
side effect of the changes in the indexscan cost model that cause it
to not go for the bogus plan.
regards, tom lane
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