Merge mysql.com:/home/gluh/MySQL/Merge/5.0-opt

into  mysql.com:/home/gluh/MySQL/Merge/5.1-opt


mysql-test/r/distinct.result:
  Auto merged
mysql-test/r/join_nested.result:
  Auto merged
mysql-test/r/null_key.result:
  Auto merged
mysql-test/r/select.result:
  Auto merged
mysql-test/r/subselect.result:
  Auto merged
mysql-test/r/subselect3.result:
  Auto merged
mysql-test/r/trigger.result:
  Auto merged
mysql-test/t/select.test:
  Auto merged
mysql-test/t/subselect.test:
  Auto merged
mysql-test/t/trigger.test:
  Auto merged
sql/filesort.cc:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/opt_sum.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/table.cc:
  Auto merged
mysql-test/r/func_time.result:
  manual merge
mysql-test/r/information_schema.result:
  manual merge
mysql-test/t/func_time.test:
  manual merge
mysql-test/t/information_schema.test:
  manual merge
sql/opt_range.cc:
  manual merge
sql/sql_delete.cc:
  manual merge
sql/sql_lex.h:
  manual merge

1 files changed, 1 insertions, 0 deletions

diff --git a/sql/table.cc b/sql/table.cc
index cf2eb1705a5..e911d39b225 100644
--- a/sql/table.cc
+++ b/sql/table.cc
@@ -3430,6 +3430,7 @@ Field *Natural_join_column::field()
 
 const char *Natural_join_column::table_name()
 {
+  DBUG_ASSERT(table_ref);
   return table_ref->alias;
 }