/*-------------------------------------------------------------------------
 *
 * nodeIndexscan.h
 *
 *
 *
 * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/executor/nodeIndexscan.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef NODEINDEXSCAN_H
#define NODEINDEXSCAN_H

#include "nodes/execnodes.h"

extern IndexScanState *ExecInitIndexScan(IndexScan *node, EState *estate, int eflags);
extern TupleTableSlot *ExecIndexScan(IndexScanState *node);
extern void ExecEndIndexScan(IndexScanState *node);
extern void ExecIndexMarkPos(IndexScanState *node);
extern void ExecIndexRestrPos(IndexScanState *node);
extern void ExecReScanIndexScan(IndexScanState *node);

/*
 * These routines are exported to share code with nodeIndexonlyscan.c and
 * nodeBitmapIndexscan.c
 */
extern void ExecIndexBuildScanKeys(PlanState *planstate, Relation index,
					   List *quals, bool isorderby,
					   ScanKey *scanKeys, int *numScanKeys,
					   IndexRuntimeKeyInfo **runtimeKeys, int *numRuntimeKeys,
					   IndexArrayKeyInfo **arrayKeys, int *numArrayKeys);
extern void ExecIndexEvalRuntimeKeys(ExprContext *econtext,
					   IndexRuntimeKeyInfo *runtimeKeys, int numRuntimeKeys);
extern bool ExecIndexEvalArrayKeys(ExprContext *econtext,
					   IndexArrayKeyInfo *arrayKeys, int numArrayKeys);
extern bool ExecIndexAdvanceArrayKeys(IndexArrayKeyInfo *arrayKeys, int numArrayKeys);

#endif   /* NODEINDEXSCAN_H */
