add openGauss 3.1.0 feature code

src/include/optimizer/sqlpatch.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2022 Huawei Technologies Co.,Ltd.
+ * Portions Copyright (c) 2021, openGauss Contributors
+ *
+ * openGauss is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *
+ *          http://license.coscl.org.cn/MulanPSL2
+ *
+ * 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 PSL v2 for more details.
+ * ---------------------------------------------------------------------------------------
+ *
+ * sqlpatch.h
+ *		prototypes for sqlpatch.c.
+ * 
+ *
+ * IDENTIFICATION
+ *      src/include/commands/sqlpatch.h
+ *
+ * ---------------------------------------------------------------------------------------
+ */
+
+#ifndef SQLPATCH_H
+#define SQLPATCH_H
+
+#include "postgres.h"
+#include "utils/plancache.h"
+
+extern void sql_patch_sql_register_hook();
+extern bool CheckRecreateCachePlanBySqlPatch(const CachedPlanSource *plansource);
+extern void RevalidateGplanBySqlPatch(CachedPlanSource *plansource);
+
+#endif /* SQLPATCH_H */