CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl(at)postgresql(dot)org 03/04/24 19:43:09
Modified files:
src/backend/optimizer/path: allpaths.c
src/backend/optimizer/prep: prepunion.c
src/include/optimizer: prep.h
Log message:
Adjust subquery qual pushdown rules so that we can push down a qual
into a UNION that has some type coercions applied to the component
queries, so long as the qual itself does not reference any columns that
have such coercions. Per example from Jonathan Bartlett 24-Apr-03.