Markus Schaber <schabi(at)logix-tt(dot)com> schrieb:
> Bitmap Index Scans can be your solution, but AFAIK they were invented in
> 8.1.
Right.
>
> For bitmap index scans, you have one index on fkColumnOne and one on
> fkColumnTwo, and the query planner knows to combine them when both
> columns are given in a WHERE clause.
Yeah! The Bitmap Index Scan is a great thing. With some selects i have a
performance-boost from 5 to 10, compared with 8.0.
Andreas
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