git.postgresql.org Git - postgresql.git/commitdiff

Wed, 7 Apr 2004 17:42:28 +0000 (17:42 +0000)

causing it to fail to recognize the output ordering of subqueries that
contain set operations (UNION/INTERSECT/EXPECT). Per example from Karel Zak.

index d6d83f7c761d2697214838c8b51896d10b79c212..65eb5cb8a6502e24f60207a78e304407bef30a53 100644 (file)

* IDENTIFICATION

- * $PostgreSQL: pgsql/src/backend/optimizer/path/pathkeys.c,v 1.55 2003年12月03日 17:45:07 tgl Exp $

+ * $PostgreSQL: pgsql/src/backend/optimizer/path/pathkeys.c,v 1.56 2004年04月07日 17:42:28 tgl Exp $

*-------------------------------------------------------------------------

@@ -757,6 +757,7 @@ build_subquery_pathkeys(Query *root, RelOptInfo *rel, Query *subquery)

List *retval = NIL;

int retvallen = 0;

int outer_query_keys = length(root->query_pathkeys);

+ List *sub_tlist = rel->subplan->targetlist;

List *l;

foreach(l, subquery->query_pathkeys)

@@ -789,7 +790,7 @@ build_subquery_pathkeys(Query *root, RelOptInfo *rel, Query *subquery)

Node *sub_key = sub_item->key;

List *k;

- foreach(k, subquery->targetList)

+ foreach(k, sub_tlist)

{

TargetEntry *tle = (TargetEntry *) lfirst(k);

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