David Rowley <dgrowle...@gmail.com> writes: > On Wed, 21 Jul 2021 at 11:25, Tom Lane <t...@sss.pgh.pa.us> wrote: >> Uh .... it's not the "exact same bitmap each time", because the selected >> rows vary depending on the value of g.i.
> I imagined Jeff was meaning the bitmap from the scan of foo_x_idx, not
> the combined ANDed bitmap from both indexes.
To re-use that, you'd need a way to prevent the upper node from
destructively modifying the tidbitmap.
regards, tom lane
