Re: allow disabling indexscans without disabling bitmapscans
Justin Pryzby <[email protected]>
| Newsgroups | gmane.comp.db.postgresql.devel.general |
|---|---|
| Message-ID | <[email protected]> |
On Sat, Jan 04, 2020 at 10:50:47AM -0600, Justin Pryzby wrote: > > Doesn't enable_indexscan=off accomplish this already? It is possible but > > not terribly likely to switch from index to seq, rather than from index to > > bitmap. (Unless the index scan was being used to obtain an ordered result, > > but a hypothetical enable_bitmapscan=FORCE can't fix that). > > No, enable_indexscan=off implicitly disables bitmap index scans, since it does: I don't know how I went wrong, but the regress tests clued me in..it's as Jeff said. Sorry for the noise. Justin