diff options
Diffstat (limited to 'src/backend/optimizer/prep/prepunion.c')
| -rw-r--r-- | src/backend/optimizer/prep/prepunion.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/src/backend/optimizer/prep/prepunion.c b/src/backend/optimizer/prep/prepunion.c index 931faabe13..21afad92b8 100644 --- a/src/backend/optimizer/prep/prepunion.c +++ b/src/backend/optimizer/prep/prepunion.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.37 1999/07/17 20:17:17 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.38 1999/08/16 02:17:55 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -318,34 +318,29 @@ find_all_inheritors(Relids unexamined_relids, Relids examined_relids) { List *new_inheritors = NIL; - List *new_examined_relids = NIL; - List *new_unexamined_relids = NIL; + List *new_examined_relids; + List *new_unexamined_relids; + List *rels; /* * Find all relations which inherit from members of * 'unexamined_relids' and store them in 'new_inheritors'. */ - List *rels = NIL; - List *newrels = NIL; - foreach(rels, unexamined_relids) { - newrels = (List *) LispUnioni(find_inheritance_children(lfirsti(rels)), - newrels); + new_inheritors = LispUnioni(new_inheritors, + find_inheritance_children(lfirsti(rels))); } - new_inheritors = newrels; - new_examined_relids = (List *) LispUnioni(examined_relids, unexamined_relids); + new_examined_relids = LispUnioni(examined_relids, unexamined_relids); new_unexamined_relids = set_differencei(new_inheritors, new_examined_relids); - if (new_unexamined_relids == NULL) + if (new_unexamined_relids == NIL) return new_examined_relids; else - { - return (find_all_inheritors(new_unexamined_relids, - new_examined_relids)); - } + return find_all_inheritors(new_unexamined_relids, + new_examined_relids); } /* |