Postgres95 1.01 Distribution - Virgin SourcesPG95-1_01

1 files changed, 229 insertions, 0 deletions

diff --git a/src/backend/executor/executor.h b/src/backend/executor/executor.h
new file mode 100644
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+++ b/src/backend/executor/executor.h
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+/*-------------------------------------------------------------------------
+ *
+ * executor.h--
+ *    support for the POSTGRES executor module
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: executor.h,v 1.1.1.1 1996/07/09 06:21:25 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef EXECUTOR_H
+#define EXECUTOR_H
+
+/* ----------------------------------------------------------------
+ *     #includes
+ * ----------------------------------------------------------------
+ */
+#include <stdio.h>
+#include <string.h>
+
+#include "postgres.h"
+#include "nodes/pg_list.h"
+
+/* ----------------
+ * executor debugging definitions are kept in a separate file
+ * so people can customize what debugging they want to see and not
+ * have this information clobbered every time a new version of
+ * executor.h is checked in -cim 10/26/89
+ * ----------------
+ */
+#include "executor/execdebug.h"
+
+#include "access/heapam.h"
+#include "access/htup.h"
+#include "access/istrat.h"
+#include "access/itup.h"
+#include "access/skey.h"
+#include "utils/tqual.h"
+#include "catalog/catname.h"
+#include "utils/syscache.h"
+#include "executor/execdefs.h"
+#include "executor/tuptable.h"
+
+#include "nodes/parsenodes.h"
+
+#include "storage/buf.h"
+#include "miscadmin.h"
+#include "fmgr.h"
+#include "utils/elog.h"
+#include "utils/mcxt.h"
+#include "utils/memutils.h"
+#include "utils/rel.h"
+
+#include "catalog/pg_index.h"
+#include "catalog/pg_proc.h"
+#include "catalog/pg_type.h"
+#include "catalog/pg_aggregate.h"
+
+#include "access/printtup.h"
+#include "nodes/primnodes.h"
+#include "nodes/plannodes.h"
+#include "nodes/execnodes.h"
+
+#include "tcop/dest.h"
+#include "storage/smgr.h"
+
+#include "access/genam.h"
+#include "executor/execdesc.h"
+
+/*
+ * prototypes from functions in execAmi.c
+ */
+extern void ExecOpenScanR(Oid relOid, int nkeys, ScanKey skeys, bool isindex,
+		   ScanDirection dir, TimeQual timeRange,
+		   Relation *returnRelation, Pointer *returnScanDesc);
+extern Relation ExecOpenR(Oid relationOid, bool isindex);
+extern Pointer ExecBeginScan(Relation relation, int nkeys, ScanKey skeys,
+		      bool isindex, ScanDirection dir, TimeQual time_range);
+extern void ExecCloseR(Plan *node);
+extern void ExecReScan(Plan *node, ExprContext *exprCtxt, Plan *parent);
+extern HeapScanDesc ExecReScanR(Relation relDesc, HeapScanDesc scanDesc,
+			 ScanDirection direction, int nkeys, ScanKey skeys);
+extern void ExecMarkPos(Plan *node);
+extern void ExecRestrPos(Plan *node);
+extern Relation ExecCreatR(TupleDesc tupType, Oid relationOid);
+
+/*
+ * prototypes from functions in execJunk.c
+ */
+extern JunkFilter *ExecInitJunkFilter(List *targetList);
+extern bool ExecGetJunkAttribute(JunkFilter *junkfilter, TupleTableSlot *slot,
+				 char *attrName, Datum *value, bool *isNull);
+extern HeapTuple ExecRemoveJunk(JunkFilter *junkfilter, TupleTableSlot *slot);
+
+
+/*
+ * prototypes from functions in execMain.c
+ */
+extern TupleDesc ExecutorStart(QueryDesc *queryDesc, EState *estate);
+extern TupleTableSlot* ExecutorRun(QueryDesc *queryDesc, EState *estate, int feature, int count);
+extern void ExecutorEnd(QueryDesc *queryDesc, EState *estate);
+
+/*
+ * prototypes from functions in execProcnode.c
+ */
+extern bool ExecInitNode(Plan *node, EState *estate, Plan *parent);
+extern TupleTableSlot *ExecProcNode(Plan *node, Plan *parent);
+extern int ExecCountSlotsNode(Plan *node);
+extern void ExecEndNode(Plan *node, Plan *parent);
+
+/*
+ * prototypes from functions in execQual.c
+ */
+extern bool execConstByVal;
+extern int 	execConstLen;
+
+extern Datum ExecExtractResult(TupleTableSlot *slot, AttrNumber attnum,
+			bool *isNull);
+extern Datum ExecEvalVar(Var *variable, ExprContext *econtext, bool *isNull);
+extern Datum ExecEvalParam(Param *expression, ExprContext *econtext,
+			   bool *isNull);
+extern char *GetAttributeByNum(TupleTableSlot *slot, AttrNumber attrno,
+			bool *isNull);
+extern char *att_by_num(TupleTableSlot *slot, AttrNumber attrno,
+			bool *isNull);
+/* stop here */
+extern char *GetAttributeByName(TupleTableSlot *slot, char *attname,
+				bool *isNull);
+extern char *att_by_name(TupleTableSlot *slot, char *attname, bool *isNull);
+extern void ExecEvalFuncArgs(FunctionCachePtr fcache, ExprContext *econtext,
+		      List *argList, Datum argV[], bool *argIsDone);
+extern Datum ExecMakeFunctionResult(Node *node, List *arguments,
+		ExprContext *econtext, bool *isNull, bool *isDone);
+extern Datum ExecEvalOper(Expr *opClause, ExprContext *econtext,
+			  bool *isNull);
+extern Datum ExecEvalFunc(Expr *funcClause, ExprContext *econtext,
+			  bool *isNull, bool *isDone);
+extern Datum ExecEvalNot(Expr *notclause, ExprContext *econtext, bool *isNull);
+extern Datum ExecEvalOr(Expr *orExpr, ExprContext *econtext, bool *isNull);
+extern Datum ExecEvalAnd(Expr *andExpr, ExprContext *econtext, bool *isNull);
+extern Datum ExecEvalExpr(Node *expression, ExprContext *econtext, bool *isNull,
+			  bool *isDone);
+extern bool ExecQualClause(Node *clause, ExprContext *econtext);
+extern bool ExecQual(List *qual, ExprContext *econtext);
+extern int ExecTargetListLength(List *targetlist);
+extern TupleTableSlot *ExecProject(ProjectionInfo *projInfo, bool *isDone);
+
+/*
+ * prototypes from functions in execScan.c
+ */
+extern TupleTableSlot *ExecScan(Scan *node, TupleTableSlot* (*accessMtd)());
+
+/*
+ * prototypes from functions in execTuples.c
+ */
+extern TupleTable ExecCreateTupleTable(int initialSize);
+extern void ExecDestroyTupleTable(TupleTable table, bool shouldFree);
+extern TupleTableSlot* ExecAllocTableSlot(TupleTable table);
+extern TupleTableSlot* ExecStoreTuple(HeapTuple tuple, 
+				      TupleTableSlot *slot,
+				      Buffer buffer,
+				      bool shouldFree);
+extern TupleTableSlot* ExecClearTuple(TupleTableSlot* slot);
+extern bool ExecSlotPolicy(TupleTableSlot *slot);
+extern bool ExecSetSlotPolicy(TupleTableSlot *slot, bool shouldFree);
+extern TupleDesc ExecSetSlotDescriptor(TupleTableSlot *slot,
+				       TupleDesc tupdesc);
+extern void ExecSetSlotDescriptorIsNew(TupleTableSlot *slot, bool isNew);
+extern TupleDesc ExecSetNewSlotDescriptor(TupleTableSlot *slot,
+					  TupleDesc tupdesc);
+extern Buffer ExecSetSlotBuffer(TupleTableSlot *slot, Buffer b);
+extern void ExecIncrSlotBufferRefcnt(TupleTableSlot *slot);
+extern bool TupIsNull(TupleTableSlot* slot);
+extern bool ExecSlotDescriptorIsNew(TupleTableSlot *slot);
+extern void ExecInitResultTupleSlot(EState *estate, CommonState *commonstate);
+extern void ExecInitScanTupleSlot(EState *estate,
+				  CommonScanState *commonscanstate);
+extern void ExecInitMarkedTupleSlot(EState *estate, MergeJoinState *mergestate);
+extern void ExecInitOuterTupleSlot(EState *estate, HashJoinState *hashstate);
+extern void ExecInitHashTupleSlot(EState *estate, HashJoinState *hashstate);
+extern TupleTableSlot *NodeGetResultTupleSlot(Plan *node);
+
+extern TupleDesc ExecGetTupType(Plan *node);
+extern TupleDesc ExecTypeFromTL(List *targetList);
+
+/*
+ * prototypes from functions in execTuples.c
+ */
+extern void ResetTupleCount();
+extern void DisplayTupleCount(FILE *statfp);
+extern void ExecAssignNodeBaseInfo(EState *estate, CommonState *basenode,
+				   Plan *parent);
+extern void ExecAssignExprContext(EState *estate, CommonState *commonstate);
+extern void ExecAssignResultType(CommonState *commonstate,
+				 TupleDesc tupDesc);
+extern void ExecAssignResultTypeFromOuterPlan(Plan *node,
+		CommonState *commonstate);
+extern void ExecAssignResultTypeFromTL(Plan *node, CommonState *commonstate);
+extern TupleDesc ExecGetResultType(CommonState *commonstate);
+extern void ExecFreeResultType(CommonState *commonstate);
+extern void ExecAssignProjectionInfo(Plan *node, CommonState *commonstate);
+extern void ExecFreeProjectionInfo(CommonState *commonstate);
+extern TupleDesc ExecGetScanType(CommonScanState *csstate);
+extern void ExecFreeScanType(CommonScanState *csstate);
+extern void ExecAssignScanType(CommonScanState	*csstate,
+			       TupleDesc tupDesc);
+extern void ExecAssignScanTypeFromOuterPlan(Plan *node,
+					    CommonScanState *csstate);
+extern AttributeTupleForm ExecGetTypeInfo(Relation relDesc);
+
+extern void ExecGetIndexKeyInfo(IndexTupleForm indexTuple, int *numAttsOutP,
+		 AttrNumber **attsOutP, FuncIndexInfoPtr fInfoP);
+extern void ExecOpenIndices(Oid resultRelationOid,
+			    RelationInfo *resultRelationInfo);
+extern void ExecCloseIndices(RelationInfo *resultRelationInfo);
+extern IndexTuple ExecFormIndexTuple(HeapTuple heapTuple,
+	Relation heapRelation, Relation indexRelation, IndexInfo *indexInfo);
+extern void ExecInsertIndexTuples(TupleTableSlot *slot, ItemPointer tupleid,
+				      EState *estate);
+
+
+/* ----------------------------------------------------------------
+ *	the end
+ * ----------------------------------------------------------------
+ */
+
+#endif /*  EXECUTOR_H  */