From 05e3d0ee8666b74f11ffad16f46e372459d6e53e Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Thu, 5 Oct 2000 19:11:39 +0000
Subject: Reimplementation of UNION/INTERSECT/EXCEPT.  INTERSECT/EXCEPT now
 meet the SQL92 semantics, including support for ALL option.  All three can be
 used in subqueries and views.  DISTINCT and ORDER BY work now in views, too.
 This rewrite fixes many problems with cross-datatype UNIONs and INSERT/SELECT
 where the SELECT yields different datatypes than the INSERT needs.  I did
 that by making UNION subqueries and SELECT in INSERT be treated like
 subselects-in-FROM, thereby allowing an extra level of targetlist where the
 datatype conversions can be inserted safely. INITDB NEEDED!

---
 src/backend/executor/execProcnode.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

(limited to 'src/backend/executor/execProcnode.c')

diff --git a/src/backend/executor/execProcnode.c b/src/backend/executor/execProcnode.c
index d6a15371311..6269a7caa10 100644
--- a/src/backend/executor/execProcnode.c
+++ b/src/backend/executor/execProcnode.c
@@ -12,7 +12,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/executor/execProcnode.c,v 1.20 2000/09/29 18:21:29 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/executor/execProcnode.c,v 1.21 2000/10/05 19:11:26 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -88,6 +88,7 @@
 #include "executor/nodeNestloop.h"
 #include "executor/nodeResult.h"
 #include "executor/nodeSeqscan.h"
+#include "executor/nodeSetOp.h"
 #include "executor/nodeSort.h"
 #include "executor/nodeSubplan.h"
 #include "executor/nodeSubqueryscan.h"
@@ -199,6 +200,10 @@ ExecInitNode(Plan *node, EState *estate, Plan *parent)
 			result = ExecInitUnique((Unique *) node, estate, parent);
 			break;
 
+		case T_SetOp:
+			result = ExecInitSetOp((SetOp *) node, estate, parent);
+			break;
+
 		case T_Group:
 			result = ExecInitGroup((Group *) node, estate, parent);
 			break;
@@ -322,6 +327,10 @@ ExecProcNode(Plan *node, Plan *parent)
 			result = ExecUnique((Unique *) node);
 			break;
 
+		case T_SetOp:
+			result = ExecSetOp((SetOp *) node);
+			break;
+
 		case T_Group:
 			result = ExecGroup((Group *) node);
 			break;
@@ -401,6 +410,9 @@ ExecCountSlotsNode(Plan *node)
 		case T_Unique:
 			return ExecCountSlotsUnique((Unique *) node);
 
+		case T_SetOp:
+			return ExecCountSlotsSetOp((SetOp *) node);
+
 		case T_Group:
 			return ExecCountSlotsGroup((Group *) node);
 
@@ -519,6 +531,10 @@ ExecEndNode(Plan *node, Plan *parent)
 			ExecEndUnique((Unique *) node);
 			break;
 
+		case T_SetOp:
+			ExecEndSetOp((SetOp *) node);
+			break;
+
 		case T_Group:
 			ExecEndGroup((Group *) node);
 			break;
-- 
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