Bruce Momjian <[EMAIL PROTECTED]> writes:
> Updated TODO:
> * Allow the creation of bitmap indexes which can be quickly combined
> with other bitmap indexes
This TODO item description is fundamentally misleading.
The point was *not* about making "bitmap indexes", which on its face
suggests a persistent on-disk data structure comparable to our existing
index types. The point was about using transient in-memory bitmaps as
an interface between the on-disk indexes and accessing the table proper.
regards, tom lane
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