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

Started by Tom Laneover 22 years ago1 messagescomitters
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#1Tom Lane
tgl@sss.pgh.pa.us

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl@svr1.postgresql.org 03/12/17 20:22:12

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

Log message:
Be a little smarter in group_clauses_by_indexkey_for_join: detect cases
where a joinclause is redundant with a restriction clause. Original coding
believed this was impossible and didn't need to be checked for, but that
was a thinko ...