/*------------------------------------------------------------------------- * * executor.h-- * support for the POSTGRES executor module * * * Copyright (c) 1994, Regents of the University of California * * executor.h,v 1.15 1995/07/04 02:19:18 jolly Exp * *------------------------------------------------------------------------- */ #ifndef EXECUTOR_H #define EXECUTOR_H /* ---------------------------------------------------------------- * #includes * ---------------------------------------------------------------- */ #include #include #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(int numberAttributes, TupleDesc tupType, Oid relationOid); /* * prototypes from functions in execJunk.c */ extern JunkFilter *ExecInitJunkFilter(List *targetList); extern bool ExecGetJunkAttribute(JunkFilter *junkfilter, TupleTableSlot *slot, Name attrName, Datum *value, bool *isNull); extern HeapTuple ExecRemoveJunk(JunkFilter *junkfilter, TupleTableSlot *slot); /* * prototypes from functions in execMain.c */ extern AttrInfo* 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, Name attname, bool *isNull); extern char *att_by_name(TupleTableSlot *slot, Name 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, Pointer (*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* ExecStoreTupleDebug(String file, int line, 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 ExecCopyTupType(TupleDesc td, int natts); 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 TupleDesc ExecMakeTypeInfo(int nelts); extern AttributeTupleForm ExecGetTypeInfo(Relation relDesc); extern void ExecSetTypeInfo(int index, TupleDesc typeInfo, Oid typeID, int attNum, int attLen, char *attName, bool attbyVal, char attalign); extern void ExecFreeTypeInfo(TupleDesc typeInfo); extern AttrInfo *QueryDescGetTypeInfo(QueryDesc *queryDesc); 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 */