/*-------------------------------------------------------------------------
 *
 * index.h--
 *	  prototypes for index.c.
 *
 *
 * Copyright (c) 1994, Regents of the University of California
 *
 * $Id: index.h,v 1.7 1997/09/08 02:34:52 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef INDEX_H
#define INDEX_H

#include <nodes/execnodes.h>
#include <nodes/parsenodes.h>
#include <access/itup.h>
#include <access/funcindex.h>

extern		Form_pg_am
			AccessMethodObjectIdGetAccessMethodTupleForm(Oid accessMethodObjectId);

extern void
			UpdateIndexPredicate(Oid indexoid, Node * oldPred, Node * predicate);

extern void
InitIndexStrategy(int numatts,
				  Relation indexRelation,
				  Oid accessMethodObjectId);

extern void
index_create(char *heapRelationName,
			 char *indexRelationName,
			 FuncIndexInfo * funcInfo,
			 List * attributeList,
			 Oid accessMethodObjectId,
			 int numatts,
			 AttrNumber attNums[],
			 Oid classObjectId[],
			 uint16 parameterCount,
			 Datum * parameter,
			 Node * predicate,
			 bool islossy,
			 bool unique);

extern void index_destroy(Oid indexId);

extern void
FormIndexDatum(int numberOfAttributes,
			   AttrNumber attributeNumber[], HeapTuple heapTuple,
			   TupleDesc heapDescriptor, Buffer buffer, Datum * datum,
			   char *nullv, FuncIndexInfoPtr fInfo);

extern void UpdateStats(Oid relid, long reltuples, bool hasindex);

extern void
FillDummyExprContext(ExprContext * econtext, TupleTableSlot * slot,
					 TupleDesc tupdesc, Buffer buffer);

extern void
index_build(Relation heapRelation, Relation indexRelation,
			int numberOfAttributes, AttrNumber attributeNumber[],
	  uint16 parameterCount, Datum * parameter, FuncIndexInfo * funcInfo,
			PredInfo * predInfo);

extern bool IndexIsUnique(Oid indexId);
extern bool IndexIsUniqueNoCache(Oid indexId);

#endif							/* INDEX_H */