CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl(at)postgresql(dot)org 03/02/09 18:57:19
Modified files:
src/backend/optimizer/plan: planner.c
src/backend/optimizer/prep: prepjointree.c
src/include/optimizer: prep.h
Log message:
Detect case where an outer join can be reduced to a plain inner join
because there are WHERE clauses that will reject the null-extended rows.
Per suggestion from Brandon Craig Rhodes, 19-Nov-02.