PREPARE/EXECUTE statements. Patch by Neil Conway, some kibitzing

from Tom Lane.

2 files changed, 92 insertions, 2 deletions

diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index 4de9ba5b8de..b3920e38b2d 100644
--- a/src/backend/nodes/copyfuncs.c
+++ b/src/backend/nodes/copyfuncs.c
@@ -15,7 +15,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.206 2002/08/26 17:53:57 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.207 2002/08/27 04:55:07 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -2647,6 +2647,41 @@ _copyDropCastStmt(DropCastStmt *from)
 	return newnode;
 }
 
+static PrepareStmt *
+_copyPrepareStmt(PrepareStmt *from)
+{
+	PrepareStmt *newnode = makeNode(PrepareStmt);
+
+	newnode->name = pstrdup(from->name);
+	Node_Copy(from, newnode, argtypes);
+	newnode->argtype_oids = listCopy(from->argtype_oids);
+	Node_Copy(from, newnode, query);
+
+	return newnode;
+}
+
+static ExecuteStmt *
+_copyExecuteStmt(ExecuteStmt *from)
+{
+	ExecuteStmt *newnode = makeNode(ExecuteStmt);
+
+	newnode->name = pstrdup(from->name);
+	Node_Copy(from, newnode, into);
+	Node_Copy(from, newnode, params);
+
+	return newnode;
+}
+
+static DeallocateStmt *
+_copyDeallocateStmt(DeallocateStmt *from)
+{
+	DeallocateStmt *newnode = makeNode(DeallocateStmt);
+
+	newnode->name = pstrdup(from->name);
+
+	return newnode;
+}
+
 
 /* ****************************************************************
  *					pg_list.h copy functions
@@ -3079,6 +3114,15 @@ copyObject(void *from)
 		case T_DropCastStmt:
 			retval = _copyDropCastStmt(from);
 			break;
+		case T_PrepareStmt:
+			retval = _copyPrepareStmt(from);
+			break;
+		case T_ExecuteStmt:
+			retval = _copyExecuteStmt(from);
+			break;
+		case T_DeallocateStmt:
+			retval = _copyDeallocateStmt(from);
+			break;
 
 		case T_A_Expr:
 			retval = _copyAExpr(from);
diff --git a/src/backend/nodes/equalfuncs.c b/src/backend/nodes/equalfuncs.c
index c96389f1e8b..408a94ff1b3 100644
--- a/src/backend/nodes/equalfuncs.c
+++ b/src/backend/nodes/equalfuncs.c
@@ -20,7 +20,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.154 2002/08/26 17:53:57 tgl Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.155 2002/08/27 04:55:07 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1491,6 +1491,43 @@ _equalDropCastStmt(DropCastStmt *a, DropCastStmt *b)
 }
 
 static bool
+_equalPrepareStmt(PrepareStmt *a, PrepareStmt *b)
+{
+	if (!equalstr(a->name, b->name))
+		return false;
+	if (!equal(a->argtypes, b->argtypes))
+		return false;
+	if (!equali(a->argtype_oids, b->argtype_oids))
+		return false;
+	if (!equal(a->query, b->query))
+		return false;
+
+	return true;
+}
+
+static bool
+_equalExecuteStmt(ExecuteStmt *a, ExecuteStmt *b)
+{
+	if (!equalstr(a->name, b->name))
+		return false;
+	if (!equal(a->into, b->into))
+		return false;
+	if (!equal(a->params, b->params))
+		return false;
+
+	return true;
+}
+
+static bool
+_equalDeallocateStmt(DeallocateStmt *a, DeallocateStmt *b)
+{
+	if (!equalstr(a->name, b->name))
+		return false;
+
+	return true;
+}
+
+static bool
 _equalAExpr(A_Expr *a, A_Expr *b)
 {
 	if (a->oper != b->oper)
@@ -2249,6 +2286,15 @@ equal(void *a, void *b)
 		case T_DropCastStmt:
 			retval = _equalDropCastStmt(a, b);
 			break;
+		case T_PrepareStmt:
+			retval = _equalPrepareStmt(a, b);
+			break;
+		case T_ExecuteStmt:
+			retval = _equalExecuteStmt(a, b);
+			break;
+		case T_DeallocateStmt:
+			retval = _equalDeallocateStmt(a, b);
+			break;
 
 		case T_A_Expr:
 			retval = _equalAExpr(a, b);