Add LIMIT syntax for Jan.

diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index 5083b47..6213456 100644 (file)
--- 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 1.48 1998/09/01 04:29:00 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.49 1998/10/22 13:52:20 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1578,6 +1578,9 @@ _copyQuery(Query *from)
                newnode->unionClause = temp_list;
        }
 
+       Node_Copy(from, newnode, limitOffset);
+       Node_Copy(from, newnode, limitCount);
+
        return newnode;
 }
 

diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c
index f018fc5..f78eb73 100644 (file)
--- a/src/backend/nodes/outfuncs.c
+++ b/src/backend/nodes/outfuncs.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.46 1998/09/01 04:29:07 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.47 1998/10/22 13:52:21 momjian Exp $
  *
  * NOTES
  *       Every (plan) node in POSTGRES has an associated "out" routine which
@@ -259,6 +259,10 @@ _outQuery(StringInfo str, Query *node)
        appendStringInfo(str, (node->hasSubLinks ? "true" : "false"));
        appendStringInfo(str, " :unionClause ");
        _outNode(str, node->unionClause);
+       appendStringInfo(str, " :limitOffset ");
+       _outNode(str, node->limitOffset);
+       appendStringInfo(str, " :limitCount ");
+       _outNode(str, node->limitCount);
 }
 
 static void

diff --git a/src/backend/nodes/readfuncs.c b/src/backend/nodes/readfuncs.c
index 9ffbc29..e56f92f 100644 (file)
--- a/src/backend/nodes/readfuncs.c
+++ b/src/backend/nodes/readfuncs.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.37 1998/09/01 04:29:12 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/nodes/readfuncs.c,v 1.38 1998/10/22 13:52:22 momjian Exp $
  *
  * NOTES
  *       Most of the read functions for plan nodes are tested. (In fact, they
@@ -163,6 +163,12 @@ _readQuery()
        token = lsptok(NULL, &length);          /* skip :unionClause */
        local_node->unionClause = nodeRead(true);
 
+       token = lsptok(NULL, &length);          /* skip :limitOffset */
+       local_node->limitOffset = nodeRead(true);
+
+       token = lsptok(NULL, &length);          /* skip :limitCount */
+       local_node->limitCount = nodeRead(true);
+
        return local_node;
 }
 

diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h
index 0608c31..afe6fe4 100644 (file)
--- a/src/include/nodes/parsenodes.h
+++ b/src/include/nodes/parsenodes.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: parsenodes.h,v 1.60 1998/10/02 16:23:07 momjian Exp $
+ * $Id: parsenodes.h,v 1.61 1998/10/22 13:52:24 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -60,6 +60,8 @@ typedef struct Query
 
        List       *unionClause;        /* unions are linked under the previous
                                                                 * query */
+       Node       *limitOffset;        /* # of result tuples to skip */
+       Node       *limitCount;         /* # of result tuples to return */
 
        /* internal to planner */
        List       *base_rel_list;      /* base relation list */
@@ -639,6 +641,8 @@ typedef struct SelectStmt
        char       *portalname;         /* the portal (cursor) to create */
        bool            binary;                 /* a binary (internal) portal? */
        bool            unionall;               /* union without unique sort */
+       Node       *limitOffset;        /* # of result tuples to skip */
+       Node       *limitCount;         /* # of result tuples to return */
 } SelectStmt;