diff options
Diffstat (limited to 'src/backend/optimizer/prep/preptlist.c')
| -rw-r--r-- | src/backend/optimizer/prep/preptlist.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/src/backend/optimizer/prep/preptlist.c b/src/backend/optimizer/prep/preptlist.c index 2861125212f..e04e7067664 100644 --- a/src/backend/optimizer/prep/preptlist.c +++ b/src/backend/optimizer/prep/preptlist.c @@ -16,7 +16,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/prep/preptlist.c,v 1.93 2008/11/02 01:45:28 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/prep/preptlist.c,v 1.94 2008/11/15 19:43:46 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -138,6 +138,11 @@ preprocess_targetlist(PlannerInfo *root, List *tlist) char *resname; TargetEntry *tle; + /* ignore child rels */ + if (rc->rti != rc->prti) + continue; + + /* always need the ctid */ var = makeVar(rc->rti, SelfItemPointerAttributeNumber, TIDOID, @@ -153,6 +158,26 @@ preprocess_targetlist(PlannerInfo *root, List *tlist) true); tlist = lappend(tlist, tle); + + /* if parent of inheritance tree, need the tableoid too */ + if (rc->isParent) + { + var = makeVar(rc->rti, + TableOidAttributeNumber, + OIDOID, + -1, + 0); + + resname = (char *) palloc(32); + snprintf(resname, 32, "tableoid%u", rc->rti); + + tle = makeTargetEntry((Expr *) var, + list_length(tlist) + 1, + resname, + true); + + tlist = lappend(tlist, tle); + } } } |