* support for the POSTGRES executor module
*
*
- * Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/executor/executor.h
#define EXECUTOR_H
#include "executor/execdesc.h"
+#include "fmgr.h"
+#include "nodes/lockoptions.h"
#include "nodes/parsenodes.h"
#include "utils/memutils.h"
* AfterTriggerBeginQuery/AfterTriggerEndQuery. This does not necessarily
* mean that the plan can't queue any AFTER triggers; just that the caller
* is responsible for there being a trigger context for them to be queued in.
- *
- * WITH/WITHOUT_OIDS tell the executor to emit tuples with or without space
- * for OIDs, respectively. These are currently used only for CREATE TABLE AS.
- * If neither is set, the plan may or may not produce tuples including OIDs.
*/
#define EXEC_FLAG_EXPLAIN_ONLY 0x0001 /* EXPLAIN, no ANALYZE */
#define EXEC_FLAG_REWIND 0x0002 /* need efficient rescan */
#define EXEC_FLAG_BACKWARD 0x0004 /* need backward scan */
#define EXEC_FLAG_MARK 0x0008 /* need mark/restore */
#define EXEC_FLAG_SKIP_TRIGGERS 0x0010 /* skip AfterTrigger calls */
-#define EXEC_FLAG_WITH_OIDS 0x0020 /* force OIDs in returned tuples */
-#define EXEC_FLAG_WITHOUT_OIDS 0x0040 /* force no OIDs in returned tuples */
-#define EXEC_FLAG_WITH_NO_DATA 0x0080 /* rel scannability doesn't matter */
+#define EXEC_FLAG_WITH_NO_DATA 0x0020 /* rel scannability doesn't matter */
/* Hook for plugins to get control in ExecutorStart() */
/*
* prototypes from functions in execAmi.c
*/
-struct Path; /* avoid including relation.h here */
+struct Path; /* avoid including pathnodes.h here */
extern void ExecReScan(PlanState *node);
extern void ExecMarkPos(PlanState *node);
* prototypes from functions in execCurrent.c
*/
extern bool execCurrentOf(CurrentOfExpr *cexpr,
- ExprContext *econtext,
- Oid table_oid,
- ItemPointer current_tid);
+ ExprContext *econtext,
+ Oid table_oid,
+ ItemPointer current_tid);
/*
* prototypes from functions in execGrouping.c
*/
extern ExprState *execTuplesMatchPrepare(TupleDesc desc,
- int numCols,
- AttrNumber *keyColIdx,
- Oid *eqOperators,
- PlanState *parent);
+ int numCols,
+ const AttrNumber *keyColIdx,
+ const Oid *eqOperators,
+ const Oid *collations,
+ PlanState *parent);
extern void execTuplesHashPrepare(int numCols,
- Oid *eqOperators,
- Oid **eqFuncOids,
- FmgrInfo **hashFunctions);
+ const Oid *eqOperators,
+ Oid **eqFuncOids,
+ FmgrInfo **hashFunctions);
extern TupleHashTable BuildTupleHashTable(PlanState *parent,
- TupleDesc inputDesc,
- int numCols, AttrNumber *keyColIdx,
- Oid *eqfuncoids,
- FmgrInfo *hashfunctions,
- long nbuckets, Size additionalsize,
- MemoryContext tablecxt,
- MemoryContext tempcxt, bool use_variable_hash_iv);
+ TupleDesc inputDesc,
+ int numCols, AttrNumber *keyColIdx,
+ const Oid *eqfuncoids,
+ FmgrInfo *hashfunctions,
+ Oid *collations,
+ long nbuckets, Size additionalsize,
+ MemoryContext tablecxt,
+ MemoryContext tempcxt, bool use_variable_hash_iv);
+extern TupleHashTable BuildTupleHashTableExt(PlanState *parent,
+ TupleDesc inputDesc,
+ int numCols, AttrNumber *keyColIdx,
+ const Oid *eqfuncoids,
+ FmgrInfo *hashfunctions,
+ Oid *collations,
+ long nbuckets, Size additionalsize,
+ MemoryContext metacxt,
+ MemoryContext tablecxt,
+ MemoryContext tempcxt, bool use_variable_hash_iv);
extern TupleHashEntry LookupTupleHashEntry(TupleHashTable hashtable,
- TupleTableSlot *slot,
- bool *isnew);
+ TupleTableSlot *slot,
+ bool *isnew);
extern TupleHashEntry FindTupleHashEntry(TupleHashTable hashtable,
- TupleTableSlot *slot,
- ExprState *eqcomp,
- FmgrInfo *hashfunctions);
+ TupleTableSlot *slot,
+ ExprState *eqcomp,
+ FmgrInfo *hashfunctions);
+extern void ResetTupleHashTable(TupleHashTable hashtable);
/*
* prototypes from functions in execJunk.c
*/
-extern JunkFilter *ExecInitJunkFilter(List *targetList, bool hasoid,
- TupleTableSlot *slot);
+extern JunkFilter *ExecInitJunkFilter(List *targetList,
+ TupleTableSlot *slot);
extern JunkFilter *ExecInitJunkFilterConversion(List *targetList,
- TupleDesc cleanTupType,
- TupleTableSlot *slot);
+ TupleDesc cleanTupType,
+ TupleTableSlot *slot);
extern AttrNumber ExecFindJunkAttribute(JunkFilter *junkfilter,
- const char *attrName);
+ const char *attrName);
extern AttrNumber ExecFindJunkAttributeInTlist(List *targetlist,
- const char *attrName);
+ const char *attrName);
extern Datum ExecGetJunkAttribute(TupleTableSlot *slot, AttrNumber attno,
- bool *isNull);
+ bool *isNull);
extern TupleTableSlot *ExecFilterJunk(JunkFilter *junkfilter,
- TupleTableSlot *slot);
+ TupleTableSlot *slot);
/*
extern void ExecutorStart(QueryDesc *queryDesc, int eflags);
extern void standard_ExecutorStart(QueryDesc *queryDesc, int eflags);
extern void ExecutorRun(QueryDesc *queryDesc,
- ScanDirection direction, uint64 count, bool execute_once);
+ ScanDirection direction, uint64 count, bool execute_once);
extern void standard_ExecutorRun(QueryDesc *queryDesc,
- ScanDirection direction, uint64 count, bool execute_once);
+ ScanDirection direction, uint64 count, bool execute_once);
extern void ExecutorFinish(QueryDesc *queryDesc);
extern void standard_ExecutorFinish(QueryDesc *queryDesc);
extern void ExecutorEnd(QueryDesc *queryDesc);
extern bool ExecCheckRTPerms(List *rangeTable, bool ereport_on_violation);
extern void CheckValidResultRel(ResultRelInfo *resultRelInfo, CmdType operation);
extern void InitResultRelInfo(ResultRelInfo *resultRelInfo,
- Relation resultRelationDesc,
- Index resultRelationIndex,
- Relation partition_root,
- int instrument_options);
+ Relation resultRelationDesc,
+ Index resultRelationIndex,
+ Relation partition_root,
+ int instrument_options);
extern ResultRelInfo *ExecGetTriggerResultRel(EState *estate, Oid relid);
extern void ExecCleanUpTriggerState(EState *estate);
-extern bool ExecContextForcesOids(PlanState *planstate, bool *hasoids);
extern void ExecConstraints(ResultRelInfo *resultRelInfo,
- TupleTableSlot *slot, EState *estate);
+ TupleTableSlot *slot, EState *estate);
extern bool ExecPartitionCheck(ResultRelInfo *resultRelInfo,
- TupleTableSlot *slot, EState *estate, bool emitError);
+ TupleTableSlot *slot, EState *estate, bool emitError);
extern void ExecPartitionCheckEmitError(ResultRelInfo *resultRelInfo,
- TupleTableSlot *slot, EState *estate);
+ TupleTableSlot *slot, EState *estate);
extern void ExecWithCheckOptions(WCOKind kind, ResultRelInfo *resultRelInfo,
- TupleTableSlot *slot, EState *estate);
+ TupleTableSlot *slot, EState *estate);
extern LockTupleMode ExecUpdateLockMode(EState *estate, ResultRelInfo *relinfo);
extern ExecRowMark *ExecFindRowMark(EState *estate, Index rti, bool missing_ok);
extern ExecAuxRowMark *ExecBuildAuxRowMark(ExecRowMark *erm, List *targetlist);
-extern TupleTableSlot *EvalPlanQual(EState *estate, EPQState *epqstate,
- Relation relation, Index rti, int lockmode,
- ItemPointer tid, TransactionId priorXmax);
-extern HeapTuple EvalPlanQualFetch(EState *estate, Relation relation,
- int lockmode, LockWaitPolicy wait_policy, ItemPointer tid,
- TransactionId priorXmax);
-extern void EvalPlanQualInit(EPQState *epqstate, EState *estate,
- Plan *subplan, List *auxrowmarks, int epqParam);
+extern TupleTableSlot *EvalPlanQual(EPQState *epqstate, Relation relation,
+ Index rti, TupleTableSlot *testslot);
+extern void EvalPlanQualInit(EPQState *epqstate, EState *parentestate,
+ Plan *subplan, List *auxrowmarks, int epqParam);
extern void EvalPlanQualSetPlan(EPQState *epqstate,
- Plan *subplan, List *auxrowmarks);
-extern void EvalPlanQualSetTuple(EPQState *epqstate, Index rti,
- HeapTuple tuple);
-extern HeapTuple EvalPlanQualGetTuple(EPQState *epqstate, Index rti);
+ Plan *subplan, List *auxrowmarks);
+extern TupleTableSlot *EvalPlanQualSlot(EPQState *epqstate,
+ Relation relation, Index rti);
#define EvalPlanQualSetSlot(epqstate, slot) ((epqstate)->origslot = (slot))
-extern void EvalPlanQualFetchRowMarks(EPQState *epqstate);
+extern bool EvalPlanQualFetchRowMark(EPQState *epqstate, Index rti, TupleTableSlot *slot);
extern TupleTableSlot *EvalPlanQualNext(EPQState *epqstate);
-extern void EvalPlanQualBegin(EPQState *epqstate, EState *parentestate);
+extern void EvalPlanQualBegin(EPQState *epqstate);
extern void EvalPlanQualEnd(EPQState *epqstate);
/*
extern ExprState *ExecInitCheck(List *qual, PlanState *parent);
extern List *ExecInitExprList(List *nodes, PlanState *parent);
extern ExprState *ExecBuildAggTrans(AggState *aggstate, struct AggStatePerPhaseData *phase,
- bool doSort, bool doHash);
+ bool doSort, bool doHash);
extern ExprState *ExecBuildGroupingEqual(TupleDesc ldesc, TupleDesc rdesc,
- int numCols,
- AttrNumber *keyColIdx,
- Oid *eqfunctions,
- PlanState *parent);
+ const TupleTableSlotOps *lops, const TupleTableSlotOps *rops,
+ int numCols,
+ const AttrNumber *keyColIdx,
+ const Oid *eqfunctions,
+ const Oid *collations,
+ PlanState *parent);
extern ProjectionInfo *ExecBuildProjectionInfo(List *targetList,
- ExprContext *econtext,
- TupleTableSlot *slot,
- PlanState *parent,
- TupleDesc inputDesc);
+ ExprContext *econtext,
+ TupleTableSlot *slot,
+ PlanState *parent,
+ TupleDesc inputDesc);
extern ExprState *ExecPrepareExpr(Expr *node, EState *estate);
extern ExprState *ExecPrepareQual(List *qual, EState *estate);
extern ExprState *ExecPrepareCheck(List *qual, EState *estate);
* ExecProject
*
* Projects a tuple based on projection info and stores it in the slot passed
- * to ExecBuildProjectInfo().
+ * to ExecBuildProjectionInfo().
*
* Note: the result is always a virtual tuple; therefore it may reference
* the contents of the exprContext's scan tuples and/or temporary results
* Successfully formed a result row. Mark the result slot as containing a
* valid virtual tuple (inlined version of ExecStoreVirtualTuple()).
*/
- slot->tts_isempty = false;
+ slot->tts_flags &= ~TTS_FLAG_EMPTY;
slot->tts_nvalid = slot->tts_tupleDescriptor->natts;
return slot;
* prototypes from functions in execSRF.c
*/
extern SetExprState *ExecInitTableFunctionResult(Expr *expr,
- ExprContext *econtext, PlanState *parent);
+ ExprContext *econtext, PlanState *parent);
extern Tuplestorestate *ExecMakeTableFunctionResult(SetExprState *setexpr,
- ExprContext *econtext,
- MemoryContext argContext,
- TupleDesc expectedDesc,
- bool randomAccess);
+ ExprContext *econtext,
+ MemoryContext argContext,
+ TupleDesc expectedDesc,
+ bool randomAccess);
extern SetExprState *ExecInitFunctionResultSet(Expr *expr,
- ExprContext *econtext, PlanState *parent);
+ ExprContext *econtext, PlanState *parent);
extern Datum ExecMakeFunctionResultSet(SetExprState *fcache,
- ExprContext *econtext,
- MemoryContext argContext,
- bool *isNull,
- ExprDoneCond *isDone);
+ ExprContext *econtext,
+ MemoryContext argContext,
+ bool *isNull,
+ ExprDoneCond *isDone);
/*
* prototypes from functions in execScan.c
typedef bool (*ExecScanRecheckMtd) (ScanState *node, TupleTableSlot *slot);
extern TupleTableSlot *ExecScan(ScanState *node, ExecScanAccessMtd accessMtd,
- ExecScanRecheckMtd recheckMtd);
+ ExecScanRecheckMtd recheckMtd);
extern void ExecAssignScanProjectionInfo(ScanState *node);
extern void ExecAssignScanProjectionInfoWithVarno(ScanState *node, Index varno);
extern void ExecScanReScan(ScanState *node);
/*
* prototypes from functions in execTuples.c
*/
-extern void ExecInitResultTupleSlotTL(EState *estate, PlanState *planstate);
-extern void ExecInitScanTupleSlot(EState *estate, ScanState *scanstate, TupleDesc tupleDesc);
+extern void ExecInitResultTypeTL(PlanState *planstate);
+extern void ExecInitResultSlot(PlanState *planstate,
+ const TupleTableSlotOps *tts_ops);
+extern void ExecInitResultTupleSlotTL(PlanState *planstate,
+ const TupleTableSlotOps *tts_ops);
+extern void ExecInitScanTupleSlot(EState *estate, ScanState *scanstate,
+ TupleDesc tupleDesc,
+ const TupleTableSlotOps *tts_ops);
extern TupleTableSlot *ExecInitExtraTupleSlot(EState *estate,
- TupleDesc tupleDesc);
-extern TupleTableSlot *ExecInitNullTupleSlot(EState *estate,
- TupleDesc tupType);
-extern TupleDesc ExecTypeFromTL(List *targetList, bool hasoid);
-extern TupleDesc ExecCleanTypeFromTL(List *targetList, bool hasoid);
+ TupleDesc tupledesc,
+ const TupleTableSlotOps *tts_ops);
+extern TupleTableSlot *ExecInitNullTupleSlot(EState *estate, TupleDesc tupType,
+ const TupleTableSlotOps *tts_ops);
+extern TupleDesc ExecTypeFromTL(List *targetList);
+extern TupleDesc ExecCleanTypeFromTL(List *targetList);
extern TupleDesc ExecTypeFromExprList(List *exprList);
extern void ExecTypeSetColNames(TupleDesc typeInfo, List *namesList);
extern void UpdateChangedParamSet(PlanState *node, Bitmapset *newchg);
} TupOutputState;
extern TupOutputState *begin_tup_output_tupdesc(DestReceiver *dest,
- TupleDesc tupdesc);
+ TupleDesc tupdesc,
+ const TupleTableSlotOps *tts_ops);
extern void do_tup_output(TupOutputState *tstate, Datum *values, bool *isnull);
extern void do_text_output_multiline(TupOutputState *tstate, const char *txt);
extern void end_tup_output(TupOutputState *tstate);
extern void ExecAssignExprContext(EState *estate, PlanState *planstate);
extern TupleDesc ExecGetResultType(PlanState *planstate);
+extern const TupleTableSlotOps *ExecGetResultSlotOps(PlanState *planstate,
+ bool *isfixed);
extern void ExecAssignProjectionInfo(PlanState *planstate,
- TupleDesc inputDesc);
+ TupleDesc inputDesc);
extern void ExecConditionalAssignProjectionInfo(PlanState *planstate,
- TupleDesc inputDesc, Index varno);
+ TupleDesc inputDesc, Index varno);
extern void ExecFreeExprContext(PlanState *planstate);
extern void ExecAssignScanType(ScanState *scanstate, TupleDesc tupDesc);
-extern void ExecCreateScanSlotFromOuterPlan(EState *estate, ScanState *scanstate);
+extern void ExecCreateScanSlotFromOuterPlan(EState *estate,
+ ScanState *scanstate,
+ const TupleTableSlotOps *tts_ops);
extern bool ExecRelationIsTargetRelation(EState *estate, Index scanrelid);
extern Relation ExecOpenScanRelation(EState *estate, Index scanrelid, int eflags);
-extern void ExecCloseScanRelation(Relation scanrel);
+
+extern void ExecInitRangeTable(EState *estate, List *rangeTable);
+
+static inline RangeTblEntry *
+exec_rt_fetch(Index rti, EState *estate)
+{
+ return (RangeTblEntry *) list_nth(estate->es_range_table, rti - 1);
+}
+
+extern Relation ExecGetRangeTableRelation(EState *estate, Index rti);
extern int executor_errposition(EState *estate, int location);
extern void RegisterExprContextCallback(ExprContext *econtext,
- ExprContextCallbackFunction function,
- Datum arg);
+ ExprContextCallbackFunction function,
+ Datum arg);
extern void UnregisterExprContextCallback(ExprContext *econtext,
- ExprContextCallbackFunction function,
- Datum arg);
-
-extern void ExecLockNonLeafAppendTables(List *partitioned_rels, EState *estate);
+ ExprContextCallbackFunction function,
+ Datum arg);
extern Datum GetAttributeByName(HeapTupleHeader tuple, const char *attname,
- bool *isNull);
+ bool *isNull);
extern Datum GetAttributeByNum(HeapTupleHeader tuple, AttrNumber attrno,
- bool *isNull);
+ bool *isNull);
extern int ExecTargetListLength(List *targetlist);
extern int ExecCleanTargetListLength(List *targetlist);
+extern TupleTableSlot *ExecGetTriggerOldSlot(EState *estate, ResultRelInfo *relInfo);
+extern TupleTableSlot *ExecGetTriggerNewSlot(EState *estate, ResultRelInfo *relInfo);
+extern TupleTableSlot *ExecGetReturningSlot(EState *estate, ResultRelInfo *relInfo);
+
/*
* prototypes from functions in execIndexing.c
*/
extern void ExecOpenIndices(ResultRelInfo *resultRelInfo, bool speculative);
extern void ExecCloseIndices(ResultRelInfo *resultRelInfo);
-extern List *ExecInsertIndexTuples(TupleTableSlot *slot, ItemPointer tupleid,
- EState *estate, bool noDupErr, bool *specConflict,
- List *arbiterIndexes);
+extern List *ExecInsertIndexTuples(TupleTableSlot *slot, EState *estate, bool noDupErr,
+ bool *specConflict, List *arbiterIndexes);
extern bool ExecCheckIndexConstraints(TupleTableSlot *slot, EState *estate,
- ItemPointer conflictTid, List *arbiterIndexes);
+ ItemPointer conflictTid, List *arbiterIndexes);
extern void check_exclusion_constraint(Relation heap, Relation index,
- IndexInfo *indexInfo,
- ItemPointer tupleid,
- Datum *values, bool *isnull,
- EState *estate, bool newIndex);
+ IndexInfo *indexInfo,
+ ItemPointer tupleid,
+ Datum *values, bool *isnull,
+ EState *estate, bool newIndex);
/*
* prototypes from functions in execReplication.c
*/
extern bool RelationFindReplTupleByIndex(Relation rel, Oid idxoid,
- LockTupleMode lockmode,
- TupleTableSlot *searchslot,
- TupleTableSlot *outslot);
+ LockTupleMode lockmode,
+ TupleTableSlot *searchslot,
+ TupleTableSlot *outslot);
extern bool RelationFindReplTupleSeq(Relation rel, LockTupleMode lockmode,
- TupleTableSlot *searchslot, TupleTableSlot *outslot);
+ TupleTableSlot *searchslot, TupleTableSlot *outslot);
extern void ExecSimpleRelationInsert(EState *estate, TupleTableSlot *slot);
extern void ExecSimpleRelationUpdate(EState *estate, EPQState *epqstate,
- TupleTableSlot *searchslot, TupleTableSlot *slot);
+ TupleTableSlot *searchslot, TupleTableSlot *slot);
extern void ExecSimpleRelationDelete(EState *estate, EPQState *epqstate,
- TupleTableSlot *searchslot);
+ TupleTableSlot *searchslot);
extern void CheckCmdReplicaIdentity(Relation rel, CmdType cmd);
extern void CheckSubscriptionRelkind(char relkind, const char *nspname,
- const char *relname);
+ const char *relname);
#endif /* EXECUTOR_H */
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