| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Laurette Cisneros <laurette(at)nextbus(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: bug in join? |
| Date: | 2002-01-02 22:36:51 |
| Message-ID: | 7787.1010011011@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Laurette Cisneros <laurette(at)nextbus(dot)com> writes:
> Will keep trying. I also noticed that several triggers were dropped when I
> dropped the table. I need to add these back and see if they make a
> difference.
No, join_selectivity isn't going to care about triggers. What's failing
is the estimation of the fraction of rows that will match on address
between the two tables (join_selectivity is rejecting the result as
obviously bogus, which it is). That doesn't depend on anything except
the ANALYZE statistics.
regards, tom lane
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