> Log message:
> Finish implementation of hashed aggregation. Add enable_hashagg GUC
> parameter to allow it to be forced off for comparison purposes.
> Add ORDER BY clauses to a bunch of regression test queries that will
> otherwise produce randomly-ordered output in the new regime.
Out of interest (since I was away while this was proposed I assume),
what's the idea with hashed aggergation? I assume each group is now in a
hash bucket? How did it work before?
Chris
