On Fri, Mar 06, 2020 at 01:15:56AM +0100, Tomas Vondra wrote:
>Hi,
>
>Here is a rebased version of this patch series. I've polished the first
>two parts a bit - estimation of OR clauses and (Var op Var) clauses, and
>added a bunch of regression tests to exercise this code. It's not quite
>there yet, but I think it's feasible to get this committed for PG13.
>
>The last part (extended stats on expressions) is far from complete, and
>it's not feasible to get it into PG13. There's too much missing stuff.
>
Meh, the last part with stats on expression is not quite right and it
breaks the cputube tester, so here are the first two parts only. I don't
plan to pursue the 0003 part for PG13 anyway, as mentioned.
regards
--
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
