src/include/executor/nodeIndexscan.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * nodeIndexscan.h
   4  *
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * $PostgreSQL$
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef NODEINDEXSCAN_H
  15 #define NODEINDEXSCAN_H
  16
  17 #include "nodes/execnodes.h"
  18
  19 extern int      ExecCountSlotsIndexScan(IndexScan *node);
  20 extern IndexScanState *ExecInitIndexScan(IndexScan *node, EState *estate, int eflags);
  21 extern TupleTableSlot *ExecIndexScan(IndexScanState *node);
  22 extern void ExecEndIndexScan(IndexScanState *node);
  23 extern void ExecIndexMarkPos(IndexScanState *node);
  24 extern void ExecIndexRestrPos(IndexScanState *node);
  25 extern void ExecIndexReScan(IndexScanState *node, ExprContext *exprCtxt);
  26
  27 /* routines exported to share code with nodeBitmapIndexscan.c */
  28 extern void ExecIndexBuildScanKeys(PlanState *planstate, Relation index,
  29                                            Index scanrelid,
  30                                            List *quals, ScanKey *scanKeys, int *numScanKeys,
  31                                            IndexRuntimeKeyInfo **runtimeKeys, int *numRuntimeKeys,
  32                                            IndexArrayKeyInfo **arrayKeys, int *numArrayKeys);
  33 extern void ExecIndexEvalRuntimeKeys(ExprContext *econtext,
  34                                            IndexRuntimeKeyInfo *runtimeKeys, int numRuntimeKeys);
  35 extern bool ExecIndexEvalArrayKeys(ExprContext *econtext,
  36                                            IndexArrayKeyInfo *arrayKeys, int numArrayKeys);
  37 extern bool ExecIndexAdvanceArrayKeys(IndexArrayKeyInfo *arrayKeys, int numArrayKeys);
  38
  39 #endif   /* NODEINDEXSCAN_H */