Back-patch LIMIT + INTERSECT fix into 6.5.*.

Author: tglsfdc

src/backend/parser/gram.y

@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.88.2.3 1999/09/24 15:08:59 thomas Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.88.2.4 1999/10/19 04:38:07 tgl Exp $
  *
  * HISTORY
  *	  AUTHOR			DATE			MAJOR EVENT
@@ -2768,6 +2768,8 @@ SelectStmt:	  select_clause sort_clause for_update_clause opt_select_limit
 				  /* finally attach the sort clause */
 				  first_select->sortClause = $2;
 				  first_select->forUpdate = $3;
+				  first_select->limitOffset = nth(0, $4);
+				  first_select->limitCount = nth(1, $4);
 				  $$ = (Node *)first_select;
 				}		
 				if (((SelectStmt *)$$)->forUpdate != NULL && QueryIsRule)

src/backend/rewrite/rewriteHandler.c

@@ -6,7 +6,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteHandler.c,v 1.48 1999/07/11 17:54:30 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/rewrite/rewriteHandler.c,v 1.48.2.1 1999/10/19 04:38:05 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2859,6 +2859,8 @@ Except_Intersect_Rewrite(Query *parsetree)
 	bool		isBinary,
 				isPortal,
 				isTemp;
+	Node	   *limitOffset,
+			   *limitCount;
 	CmdType		commandType = CMD_SELECT;
 	List	   *rtable_insert = NIL;
 
@@ -2909,6 +2911,8 @@ Except_Intersect_Rewrite(Query *parsetree)
 	isBinary = parsetree->isBinary;
 	isPortal = parsetree->isPortal;
 	isTemp = parsetree->isTemp;
+	limitOffset = parsetree->limitOffset;
+	limitCount = parsetree->limitCount;
 
 	/*
 	 * The operator tree attached to parsetree->intersectClause is still
@@ -3094,6 +3098,8 @@ Except_Intersect_Rewrite(Query *parsetree)
 	result->isPortal = isPortal;
 	result->isBinary = isBinary;
 	result->isTemp = isTemp;
+	result->limitOffset = limitOffset;
+	result->limitCount = limitCount;
 
 	/*
 	 * The relation to insert into is attached to the range table of the