Re: Avoid full GIN index scan when possible
| От | Tom Lane |
|---|---|
| Тема | Re: Avoid full GIN index scan when possible |
| Дата | |
| Msg-id | 12611.1564670226@sss.pgh.pa.us обсуждение |
| Ответ на | Re: Avoid full GIN index scan when possible (Julien Rouhaud <rjuju123@gmail.com>) |
| Ответы |
Re: Avoid full GIN index scan when possible
|
| Список | pgsql-hackers |
Julien Rouhaud <rjuju123@gmail.com> writes:
> Attached v4 that should address all comments.
Eyeing this a bit further ... doesn't scanPendingInsert also need
to honor so->forcedRecheck? Something along the lines of
- tbm_add_tuples(tbm, &pos.item, 1, recheck);
+ tbm_add_tuples(tbm, &pos.item, 1, recheck | so->forcedRecheck);
at line 1837? (Obviously, there's more than one way you could
write that.)
I'm also not exactly satisfied with the new comments --- they aren't
conveying much, and the XXX in one of them is confusing; does that
mean you're unsure that the comment is correct?
The added test case seems a bit unsatisfying as well, in that it
fails to retrieve any rows. It's not very clear what it's
trying to test.
regards, tom lane
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