uher dslij <codon3(at)gmail(dot)com> writes:
> The EXPLAINs all pretty much look like my original post. The planner in
> 9.2 and above is simply not using bitmap heap scans or bitmap index scans?
> What could be the reason for this?
I don't see any reason to think this is a planner regression. The
rowcount estimates are pretty far off in both versions; so it's just a
matter of luck that 9.0 is choosing a better join order than 9.3.
I'd try cranking up the statistics targets for the join columns
(particularly domain_id) and see if that leads to better estimates.
regards, tom lane