diff options
Diffstat (limited to 'src/backend/optimizer/prep/prepkeyset.c')
| -rw-r--r-- | src/backend/optimizer/prep/prepkeyset.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/src/backend/optimizer/prep/prepkeyset.c b/src/backend/optimizer/prep/prepkeyset.c index a28e329e53..60166289a5 100644 --- a/src/backend/optimizer/prep/prepkeyset.c +++ b/src/backend/optimizer/prep/prepkeyset.c @@ -85,19 +85,14 @@ transformKeySetQuery(Query *origNode) /*************************/ /* Qualify where clause */ /*************************/ - if (!inspectOrNode((Expr *) origNode->qual) || TotalExpr < 9) + if (!inspectOrNode((Expr *) origNode->jointree->quals) || TotalExpr < 9) return; /* Copy essential elements into a union node */ - while (((Expr *) origNode->qual)->opType == OR_EXPR) + while (((Expr *) origNode->jointree->quals)->opType == OR_EXPR) { Query *unionNode = makeNode(Query); - - /* Pull up Expr = */ - unionNode->qual = lsecond(((Expr *) origNode->qual)->args); - - /* Pull up balance of tree */ - origNode->qual = lfirst(((Expr *) origNode->qual)->args); + List *qualargs = ((Expr *) origNode->jointree->quals)->args; unionNode->commandType = origNode->commandType; unionNode->resultRelation = origNode->resultRelation; @@ -107,9 +102,16 @@ transformKeySetQuery(Query *origNode) Node_Copy(origNode, unionNode, distinctClause); Node_Copy(origNode, unionNode, sortClause); Node_Copy(origNode, unionNode, rtable); + origNode->jointree->quals = NULL; /* avoid unnecessary copying */ Node_Copy(origNode, unionNode, jointree); Node_Copy(origNode, unionNode, targetList); + /* Pull up Expr = */ + unionNode->jointree->quals = lsecond(qualargs); + + /* Pull up balance of tree */ + origNode->jointree->quals = lfirst(qualargs); + origNode->unionClause = lappend(origNode->unionClause, unionNode); } return; |