Tatsuo Ishii <ishii@postgresql.org> writes:
> Just out of curiosity, is there any chance that this kind of query is
> speeding up in 9.1 because of following changes?
> * Allow FULL OUTER JOIN to be implemented as a hash join, and allow
> either side of a LEFT OUTER JOIN or RIGHT OUTER JOIN to be hashed
> (Tom Lane)
The given query wasn't an outer join, so this wouldn't affect it.
regards, tom lane