--- Percona-Server-5.1.59-debug/sql/log.cc	2011-11-29 14:46:11.000000000 +0800
+++ Percona-Server-5.1.59/sql/log.cc	2011-10-16 22:16:03.000000000 +0800
@@ -2397,12 +2397,6 @@ bool MYSQL_QUERY_LOG::write(THD *thd, ul
         tmp_errno= errno;
     }
     /* For slow query log */
-	ha_rows tmp_row_count = 0;
-	if (thd->row_count >= thd->orig_row_count) {
-		tmp_row_count = thd->row_count - thd->orig_row_count + 1;
-	} else {
-		tmp_row_count = thd->orig_row_count - thd->row_count + 1;
-	}
     sprintf(query_time_buff, "%.6f", ulonglong2double(query_utime)/1000000.0);
     sprintf(lock_time_buff,  "%.6f", ulonglong2double(lock_utime)/1000000.0);
     if (my_b_printf(&log_file,
@@ -2415,7 +2409,7 @@ bool MYSQL_QUERY_LOG::write(THD *thd, ul
                     (ulong) thd->sent_row_count,
                     (ulong) thd->examined_row_count,
                     ((long) thd->row_count_func > 0 ) ? (ulong) thd->row_count_func : 0,
-                    tmp_row_count,
+                    thd->row_count - thd->orig_row_count + 1,
                     (ulong) (thd->status_var.bytes_sent - thd->bytes_sent_old),
                     (ulong) thd->tmp_tables_used,
                     (ulong) thd->tmp_tables_disk_used,