Jon Lapham <lapham@extracta.com.br> writes:
> Yesterday I upgraded my database from Pg v7.1RC1 to v7.1.1. Since this
> upgrade, I have been having unbelievable performance problems with updates
> to a particular table, and I've tracked the problem down to a rule within
> that table.
Uh, have you VACUUM ANALYZEd yet? Those EXPLAIN numbers look
suspiciously like default statistics ...
regards, tom lane