Patch for 930 release

src/include/executor/node/nodeExtensible.h

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2020 Huawei Technologies Co.,Ltd.
+ *
+ * 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.
+ * ---------------------------------------------------------------------------------------
+ * 
+ * nodeExtensible.h
+ *        the structure of extensible plan node
+ * 
+ * 
+ * IDENTIFICATION
+ *        src/include/executor/nodeExtensible.h
+ *
+ * ---------------------------------------------------------------------------------------
+ */
+#ifndef NODEEXTENSIBLE_H
+#define NODEEXTENSIBLE_H
+
+#include "nodes/execnodes.h"
+#include "nodes/plannodes.h"
+/*
+ * General executor code
+ */
+extern ExtensiblePlanState* ExecInitExtensiblePlan(ExtensiblePlan* eplan, EState* estate, int eflags);
+extern TupleTableSlot* ExecExtensiblePlan(ExtensiblePlanState* node);
+extern void ExecEndExtensiblePlan(ExtensiblePlanState* node);
+
+extern void ExecReScanExtensiblePlan(ExtensiblePlanState* node);
+extern ExtensiblePlanMethods* GetExtensiblePlanMethods(const char* ExtensibleName, bool missing_ok);
+
+#ifdef ENABLE_MULTIPLE_NODES
+extern void InitExtensiblePlanMethodsHashTable();
+#endif
+
+/*
+ * Flags for extensible paths, indicating what capabilities the resulting scan
+ * will have.  The flags fields of ExtensiblePath and ExtensiblePlan nodes are
+ * bitmasks of these flags.
+ */
+#define EXTENSIBLEPATH_SUPPORT_BACKWARD_SCAN 0x0001
+#define EXTENSIBLEPATH_SUPPORT_MARK_RESTORE 0x0002
+#define EXTENSIBLEPATH_SUPPORT_PROJECTION 0x0004
+
+#endif /* NODEEXTENSIBLE_H */