1 files changed, 29 insertions, 0 deletions
diff --git a/sql/sql_union.h b/sql/sql_union.h
new file mode 100644
index 00000000..3776831b
--- /dev/null
+++ b/sql/sql_union.h
@@ -0,0 +1,29 @@
+/* Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1335  USA */
+
+#ifndef SQL_UNION_INCLUDED
+#define SQL_UNION_INCLUDED
+
+class THD;
+class select_result;
+struct LEX;
+
+typedef class st_select_lex_unit SELECT_LEX_UNIT;
+
+bool mysql_union(THD *thd, LEX *lex, select_result *result,
+                 SELECT_LEX_UNIT *unit, ulong setup_tables_done_option);
+
+
+#endif /* SQL_UNION_INCLUDED */