Remove unnecessary (and inadequate) check of IsTransactionBlock() in

pgstat_vacuum_tabstat().  Assume that caller (namely, VACUUM) has done
the appropriate state checking beforehand.

src/backend/postmaster/pgstat.c

@@ -16,7 +16,7 @@
  *
  *	Copyright (c) 2001, PostgreSQL Global Development Group
  *
- *	$Header: /cvsroot/pgsql/src/backend/postmaster/pgstat.c,v 1.29 2002/09/25 20:31:40 tgl Exp $
+ *	$Header: /cvsroot/pgsql/src/backend/postmaster/pgstat.c,v 1.30 2002/10/21 19:59:14 tgl Exp $
  * ----------
  */
 #include "postgres.h"
@@ -516,14 +516,6 @@ pgstat_vacuum_tabstat(void)
 	if (pgStatSock < 0)
 		return 0;
 
-	/*
-	 * We don't vacuum inside of transaction blocks, because a possible
-	 * later rollback might reactivate objects we didn't find because of
-	 * earlier destruction in the xact.
-	 */
-	if (IsTransactionBlock())
-		return 0;
-
 	/*
 	 * If not done for this transaction, read the statistics collector
 	 * stats file into some hash tables.