2009/4/18 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> =?UTF-8?Q?Grzegorz_Ja=C5=9Bkiewicz?= <gryzman(at)gmail(dot)com> writes:
>> That expected 1510 rows in 'assigments' seems to be pretty off,
> The planner does not trust an empty table to stay empty. Every
> Postgres version in living memory has acted like that; it's not
> new to 8.4.
Quick question Tom. Can correlation be negative ?
In response to
pgsql-performance by date
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