init

db_include/catalog/indexing.h

@@ -0,0 +1,54 @@
+/*-------------------------------------------------------------------------
+ *
+ * indexing.h
+ *	  This file provides some definitions to support indexing
+ *	  on system catalogs
+ *
+ *
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/catalog/indexing.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef INDEXING_H
+#define INDEXING_H
+
+#include "access/htup.h"
+#include "nodes/execnodes.h"
+#include "utils/relcache.h"
+
+/*
+ * The state object used by CatalogOpenIndexes and friends is actually the
+ * same as the executor's ResultRelInfo, but we give it another type name
+ * to decouple callers from that fact.
+ */
+typedef struct ResultRelInfo *CatalogIndexState;
+
+/*
+ * Cap the maximum amount of bytes allocated for multi-inserts with system
+ * catalogs, limiting the number of slots used.
+ */
+#define MAX_CATALOG_MULTI_INSERT_BYTES 65535
+
+/*
+ * indexing.c prototypes
+ */
+extern CatalogIndexState CatalogOpenIndexes(Relation heapRel);
+extern void CatalogCloseIndexes(CatalogIndexState indstate);
+extern void CatalogTupleInsert(Relation heapRel, HeapTuple tup);
+extern void CatalogTupleInsertWithInfo(Relation heapRel, HeapTuple tup,
+									   CatalogIndexState indstate);
+extern void CatalogTuplesMultiInsertWithInfo(Relation heapRel,
+											 TupleTableSlot **slot,
+											 int ntuples,
+											 CatalogIndexState indstate);
+extern void CatalogTupleUpdate(Relation heapRel, ItemPointer otid,
+							   HeapTuple tup);
+extern void CatalogTupleUpdateWithInfo(Relation heapRel,
+									   ItemPointer otid, HeapTuple tup,
+									   CatalogIndexState indstate);
+extern void CatalogTupleDelete(Relation heapRel, ItemPointer tid);
+
+#endif							/* INDEXING_H */