Thread: pgsql-server/src/backend/optimizer/path Tag: R ...

pgsql-server/src/backend/optimizer/path Tag: R ...

From
tgl@svr1.postgresql.org (Tom Lane)
Date:
CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@svr1.postgresql.org    04/04/06 15:46:25

Modified files:
    src/backend/optimizer/path: Tag: REL7_4_STABLE costsize.c
                                joinpath.c

Log message:
    Support FULL JOIN with no join clauses, such as X FULL JOIN Y ON TRUE.
    That particular corner case is not exactly compelling, but given 7.4's
    ability to discard redundant join clauses, it is possible for the situation
    to arise from queries that are not so obviously silly.  Per bug report
    of 6-Apr-04.