Addded to Psortstate:

lt_tupcount - number of tuples in struct leftist *Tuples
	lasttuple   - last tuple put to disk by createfirstrun()

src/include/utils/psort.h

@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: psort.h,v 1.11 1997/09/15 14:29:01 vadim Exp $
+ * $Id: psort.h,v 1.12 1997/09/18 05:42:01 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -57,6 +57,8 @@ typedef struct Psortstate
 	int			tupcount;
 
 	struct leftist *Tuples;
+	int			lt_tupcount;
+	HeapTuple	lasttuple;
 
 	FILE	   *psort_grab_file;
 	long		psort_current;	/* could be file offset, or array index */