Fix coredump in copyCommentStmt().

diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index 77f17ee0a60f8eeb81e5ffbf3d69bb67dfbeb33e..d6883bb339ec639e71ca4922dc5720a7a07a499a 100644 (file)
--- 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 1.121 2000/09/12 21:06:49 tgl Exp $
+ *   $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.122 2000/09/20 15:28:01 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1920,7 +1920,8 @@ _copyCommentStmt(CommentStmt *from)
    
    newnode->objtype = from->objtype;
    newnode->objname = pstrdup(from->objname);
-   newnode->objproperty = pstrdup(from->objproperty);
+   if (from->objproperty)
+     newnode->objproperty = pstrdup(from->objproperty);
    Node_Copy(from, newnode, objlist);
    newnode->comment = pstrdup(from->comment);