DW <dwinner-lists@att.net> writes:
> In the meantime, again I'm new to this -- I got pg_stats; which rows are
> the relevent ones?
The ones for columns that are mentioned in the problem query.
I don't think you need to worry about columns used only in the SELECT
output list, but anything used in WHERE, GROUP BY, etc is interesting.
> Also, I am running postgresql-server-7.4.9 from FreeBSD port (with
> optimized CFLAGS turned on during compiling)
> OS: FreeBSD 5.4 p8
The hardware environment (particularly disks/filesystems) is relevant
too.
regards, tom lane