Add more dependency insertions --- this completes the basic pg_depend

functionality.  Of note: dropping a table that has a SERIAL column
defined now drops the associated sequence automatically.

src/include/nodes/parsenodes.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: parsenodes.h,v 1.186 2002/07/14 23:38:13 tgl Exp $
+ * $Id: parsenodes.h,v 1.187 2002/07/16 22:12:20 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -269,6 +269,10 @@ typedef struct BooleanTest
  * parsetree produced by gram.y, but transformCreateStmt will remove
  * the item and set raw_default instead.  CONSTR_DEFAULT items
  * should not appear in any subsequent processing.
+ *
+ * The "support" field, if not null, denotes a supporting relation that
+ * should be linked by an internal dependency to the column.  Currently
+ * this is only used to link a SERIAL column's sequence to the column.
  */
 typedef struct ColumnDef
 {
@@ -280,6 +284,7 @@ typedef struct ColumnDef
 								 * tree) */
 	char	   *cooked_default; /* nodeToString representation */
 	List	   *constraints;	/* other constraints on column */
+	RangeVar   *support;		/* supporting relation, if any */
 } ColumnDef;
 
 /*