On Mon, 9 Mar 2020 at 00:06, Tomas Vondra <tomas.von...@2ndquadrant.com> wrote: > > On Mon, Mar 09, 2020 at 01:01:57AM +0100, Tomas Vondra wrote: > > > >Attaches is an updated patch series > >with parts 0002 and 0003 adding tests demonstrating the issue and then > >fixing it (both shall be merged to 0001). > > > > One day I won't forget to actually attach the files ... >
0001-0003 look reasonable to me. One minor point -- there are now 2 code blocks that are basically the same, looping over a list of clauses, calling clause_selectivity() and then applying the "s1 = s1 + s2 - s1 * s2" formula. Perhaps they could be combined into a new function (clauselist_selectivity_simple_or(), say). I guess it would need to be passed the initial starting selectivity s1, but it ought to help reduce code duplication. Regards, Dean