Re: problem with query

[Tom Lane]

=?UTF-8?B?U2HFoW8gR2FudGFy?= <saso...@gmail.com> writes:
> thanks for the info, but is there any solution, given that it's system
> tables?

Given the complexity of the query, I wonder if you're running into
problems with join_collapse_limit/from_collapse_limit preventing
the planner from considering all options.

Also, as David already mentioned, ANALYZE on pg_class might help.

                        regards, tom lane