diff options
| -rw-r--r-- | src/backend/optimizer/path/joinpath.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/src/backend/optimizer/path/joinpath.c b/src/backend/optimizer/path/joinpath.c index b75cb6128d7..7ee1542ecdf 100644 --- a/src/backend/optimizer/path/joinpath.c +++ b/src/backend/optimizer/path/joinpath.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/path/joinpath.c,v 1.93 2005/04/19 22:35:15 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/path/joinpath.c,v 1.94 2005/05/24 18:02:31 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -499,15 +499,10 @@ match_unsorted_outer(Query *root, * nestloop path, but since mergejoin is our only join type that * supports FULL JOIN, it's necessary to generate a clauseless * mergejoin path instead. - * - * Unfortunately this can't easily be extended to handle the case - * where there are joinclauses but none of them use mergejoinable - * operators; nodeMergejoin.c can only do a full join correctly if - * all the joinclauses are mergeclauses. */ if (mergeclauses == NIL) { - if (jointype == JOIN_FULL && restrictlist == NIL) + if (jointype == JOIN_FULL) /* okay to try for mergejoin */ ; else continue; |