| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Kris Jurka <jurka(at)ejurka(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Optimizer generates bad plans. |
| Date: | 2002-09-19 22:09:06 |
| Message-ID: | 200209192209.g8JM96L03130@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Congratulations. That is the largest plan I have ever seen. ;-)
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Kris Jurka wrote:
> While adding schema support to the JDBC Driver, I came across a query
> which occasionally generates some spectacularly bad plans. I have
> attached the query and explain analyze outputs against today's cvs head
> for queries that take between 9 and 845941 msec. In the JDBC Driver I
> will specify a reasonable join order using explicit JOINs, but I thought
> someone might be interested in a test case for the optimizer.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
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