Re: plans for bitmap indexes?

Bruce Momjian <pgman@candle.pha.pa.us> 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