Thread: pgsql-server/src/backend/optimizer/path costsize.c

pgsql-server/src/backend/optimizer/path costsize.c

From
tgl@svr1.postgresql.org (Tom Lane)
Date:
CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@svr1.postgresql.org    04/01/18 23:52:28

Modified files:
    src/backend/optimizer/path: costsize.c

Log message:
    Don't return an overoptimistic result from join_in_selectivity when
    we have detected that an IN subquery must return unique results.