On 7 April 2017 at 00:47, Simon Riggs <si...@2ndquadrant.com> wrote: > On 5 April 2017 at 18:48, Tom Lane <t...@sss.pgh.pa.us> wrote: >> Simon Riggs <si...@2ndquadrant.com> writes: >>> Collect and use multi-column dependency stats >> >> The buildfarm is unhappy about the fact that this changed the API >> for clauselist_selectivity(). I am not convinced that that change >> was a good idea, so before telling FDW authors that they need to >> change their code, I'd like to hear a defense of the API change. >> Why not just use the existing varRelid parameter for that? Why >> is there an assumption that only one rel's extended stats will >> ever be of interest? This function does get used for join clauses. > > Point noted. Reading thread and hope to fix today.
I've attached a rebased patch which fixes up the conflict with the BRIN cost estimate patch which went in a short while ago. -- David Rowley http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
find_relation_from_clauses_v3.patch
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