patch 4.0

src/sql/engine/cmd/ob_set_names_executor.h

@@ -0,0 +1,41 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#ifndef _OB_SET_NAMES_EXECUTOR_H
+#define _OB_SET_NAMES_EXECUTOR_H 1
+#include "sql/resolver/cmd/ob_set_names_stmt.h"
+namespace oceanbase
+{
+namespace sql
+{
+class ObExecContext;
+class ObSetNamesExecutor
+{
+public:
+  ObSetNamesExecutor() {}
+  virtual ~ObSetNamesExecutor() {}
+
+  int execute(ObExecContext &ctx, ObSetNamesStmt &stmt);
+private:
+  int get_global_sys_var_character_set_client(ObExecContext &ctx, common::ObString &character_set_client) const;
+private:
+  // disallow copy
+  DISALLOW_COPY_AND_ASSIGN(ObSetNamesExecutor);
+  // function members
+private:
+  // data members
+};
+
+} // end namespace sql
+} // end namespace oceanbase
+
+#endif /* _OB_SET_NAMES_EXECUTOR_H */