Eric Ridge kirjutas R, 09.01.2004 kell 01:16:
> Forgetting about composite indexes for a moment, is postgres even
> capable of doing 2 index scans in this situation? Does it know how do
> take the intersection of two scans?
Not currently, but it has been in TODO for quite some time:
* Use bitmaps to fetch heap pages in sequential order [performance]
* Use bitmaps to combine existing indexes [performance]
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Hannu
