From b37bc65f44eb16e98212fc61b565bb86502812fd Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Sat, 17 Jan 1998 04:53:46 +0000
Subject: Creates the SubLink structure, and the Query->hasSubLink field, with
 supporting code.

Creates SubLink node in gram.y.

psql.c patch for newatttypmod field.
---
 src/backend/nodes/copyfuncs.c | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

(limited to 'src/backend/nodes/copyfuncs.c')

diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index fe045539223..834cc8c2571 100644
--- a/src/backend/nodes/copyfuncs.c
+++ b/src/backend/nodes/copyfuncs.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.31 1998/01/16 23:19:56 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.32 1998/01/17 04:53:07 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -892,6 +892,28 @@ _copyAggreg(Aggreg *from)
 	return newnode;
 }
 
+/* ----------------
+ *		_copySubLink
+ * ----------------
+ */
+static SubLink *
+_copySubLink(SubLink *from)
+{
+	SubLink	   *newnode = makeNode(SubLink);
+
+	/* ----------------
+	 *	copy remainder of node
+	 * ----------------
+	 */
+	newnode->subLinkType = from->subLinkType;
+	newnode->useor = from->useor;
+	Node_Copy(from, newnode, lefthand);
+	Node_Copy(from, newnode, oper);
+	Node_Copy(from, newnode, subselect);
+
+	return newnode;
+}
+
 static Array *
 _copyArray(Array *from)
 {
@@ -1517,6 +1539,7 @@ _copyQuery(Query *from)
 	Node_Copy(from, newnode, havingQual);
 
 	newnode->hasAggs = from->hasAggs;
+	newnode->hasSubLinks = from->hasSubLinks;
 
 	if (from->unionClause)
 	{
@@ -1673,6 +1696,9 @@ copyObject(void *from)
 		case T_Aggreg:
 			retval = _copyAggreg(from);
 			break;
+		case T_SubLink:
+			retval = _copySubLink(from);
+			break;
 
 			/*
 			 * RELATION NODES
-- 
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