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Diffstat (limited to 'src/include/executor/executor.h')
| -rw-r--r-- | src/include/executor/executor.h | 620 |
1 files changed, 620 insertions, 0 deletions
diff --git a/src/include/executor/executor.h b/src/include/executor/executor.h new file mode 100644 index 0000000..18f834f --- /dev/null +++ b/src/include/executor/executor.h @@ -0,0 +1,620 @@ +/*------------------------------------------------------------------------- + * + * executor.h + * support for the POSTGRES executor module + * + * + * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/executor/executor.h + * + *------------------------------------------------------------------------- + */ +#ifndef EXECUTOR_H +#define EXECUTOR_H + +#include "executor/execdesc.h" +#include "fmgr.h" +#include "nodes/lockoptions.h" +#include "nodes/parsenodes.h" +#include "utils/memutils.h" + + +/* + * The "eflags" argument to ExecutorStart and the various ExecInitNode + * routines is a bitwise OR of the following flag bits, which tell the + * called plan node what to expect. Note that the flags will get modified + * as they are passed down the plan tree, since an upper node may require + * functionality in its subnode not demanded of the plan as a whole + * (example: MergeJoin requires mark/restore capability in its inner input), + * or an upper node may shield its input from some functionality requirement + * (example: Materialize shields its input from needing to do backward scan). + * + * EXPLAIN_ONLY indicates that the plan tree is being initialized just so + * EXPLAIN can print it out; it will not be run. Hence, no side-effects + * of startup should occur. However, error checks (such as permission checks) + * should be performed. + * + * REWIND indicates that the plan node should try to efficiently support + * rescans without parameter changes. (Nodes must support ExecReScan calls + * in any case, but if this flag was not given, they are at liberty to do it + * through complete recalculation. Note that a parameter change forces a + * full recalculation in any case.) + * + * BACKWARD indicates that the plan node must respect the es_direction flag. + * When this is not passed, the plan node will only be run forwards. + * + * MARK indicates that the plan node must support Mark/Restore calls. + * When this is not passed, no Mark/Restore will occur. + * + * SKIP_TRIGGERS tells ExecutorStart/ExecutorFinish to skip calling + * 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. + */ +#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_NO_DATA 0x0020 /* rel scannability doesn't matter */ + + +/* Hook for plugins to get control in ExecutorStart() */ +typedef void (*ExecutorStart_hook_type) (QueryDesc *queryDesc, int eflags); +extern PGDLLIMPORT ExecutorStart_hook_type ExecutorStart_hook; + +/* Hook for plugins to get control in ExecutorRun() */ +typedef void (*ExecutorRun_hook_type) (QueryDesc *queryDesc, + ScanDirection direction, + uint64 count, + bool execute_once); +extern PGDLLIMPORT ExecutorRun_hook_type ExecutorRun_hook; + +/* Hook for plugins to get control in ExecutorFinish() */ +typedef void (*ExecutorFinish_hook_type) (QueryDesc *queryDesc); +extern PGDLLIMPORT ExecutorFinish_hook_type ExecutorFinish_hook; + +/* Hook for plugins to get control in ExecutorEnd() */ +typedef void (*ExecutorEnd_hook_type) (QueryDesc *queryDesc); +extern PGDLLIMPORT ExecutorEnd_hook_type ExecutorEnd_hook; + +/* Hook for plugins to get control in ExecCheckRTPerms() */ +typedef bool (*ExecutorCheckPerms_hook_type) (List *, bool); +extern PGDLLIMPORT ExecutorCheckPerms_hook_type ExecutorCheckPerms_hook; + + +/* + * prototypes from functions in execAmi.c + */ +struct Path; /* avoid including pathnodes.h here */ + +extern void ExecReScan(PlanState *node); +extern void ExecMarkPos(PlanState *node); +extern void ExecRestrPos(PlanState *node); +extern bool ExecSupportsMarkRestore(struct Path *pathnode); +extern bool ExecSupportsBackwardScan(Plan *node); +extern bool ExecMaterializesOutput(NodeTag plantype); + +/* + * prototypes from functions in execCurrent.c + */ +extern bool execCurrentOf(CurrentOfExpr *cexpr, + ExprContext *econtext, + Oid table_oid, + ItemPointer current_tid); + +/* + * prototypes from functions in execGrouping.c + */ +extern ExprState *execTuplesMatchPrepare(TupleDesc desc, + int numCols, + const AttrNumber *keyColIdx, + const Oid *eqOperators, + const Oid *collations, + PlanState *parent); +extern void execTuplesHashPrepare(int numCols, + const Oid *eqOperators, + Oid **eqFuncOids, + FmgrInfo **hashFunctions); +extern TupleHashTable BuildTupleHashTable(PlanState *parent, + 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, uint32 *hash); +extern uint32 TupleHashTableHash(TupleHashTable hashtable, + TupleTableSlot *slot); +extern TupleHashEntry LookupTupleHashEntryHash(TupleHashTable hashtable, + TupleTableSlot *slot, + bool *isnew, uint32 hash); +extern TupleHashEntry FindTupleHashEntry(TupleHashTable hashtable, + TupleTableSlot *slot, + ExprState *eqcomp, + FmgrInfo *hashfunctions); +extern void ResetTupleHashTable(TupleHashTable hashtable); + +/* + * prototypes from functions in execJunk.c + */ +extern JunkFilter *ExecInitJunkFilter(List *targetList, + TupleTableSlot *slot); +extern JunkFilter *ExecInitJunkFilterInsertion(List *targetList, + TupleDesc cleanTupType, + TupleTableSlot *slot); +extern JunkFilter *ExecInitJunkFilterConversion(List *targetList, + TupleDesc cleanTupType, + TupleTableSlot *slot); +extern AttrNumber ExecFindJunkAttribute(JunkFilter *junkfilter, + const char *attrName); +extern AttrNumber ExecFindJunkAttributeInTlist(List *targetlist, + const char *attrName); +extern Datum ExecGetJunkAttribute(TupleTableSlot *slot, AttrNumber attno, + bool *isNull); +extern TupleTableSlot *ExecFilterJunk(JunkFilter *junkfilter, + TupleTableSlot *slot); + + +/* + * prototypes from functions in execMain.c + */ +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); +extern void standard_ExecutorRun(QueryDesc *queryDesc, + ScanDirection direction, uint64 count, bool execute_once); +extern void ExecutorFinish(QueryDesc *queryDesc); +extern void standard_ExecutorFinish(QueryDesc *queryDesc); +extern void ExecutorEnd(QueryDesc *queryDesc); +extern void standard_ExecutorEnd(QueryDesc *queryDesc); +extern void ExecutorRewind(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, + ResultRelInfo *partition_root_rri, + int instrument_options); +extern ResultRelInfo *ExecGetTriggerResultRel(EState *estate, Oid relid); +extern void ExecCleanUpTriggerState(EState *estate); +extern void ExecConstraints(ResultRelInfo *resultRelInfo, + TupleTableSlot *slot, EState *estate); +extern bool ExecPartitionCheck(ResultRelInfo *resultRelInfo, + TupleTableSlot *slot, EState *estate, bool emitError); +extern void ExecPartitionCheckEmitError(ResultRelInfo *resultRelInfo, + TupleTableSlot *slot, EState *estate); +extern void ExecWithCheckOptions(WCOKind kind, ResultRelInfo *resultRelInfo, + 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(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 TupleTableSlot *EvalPlanQualSlot(EPQState *epqstate, + Relation relation, Index rti); + +#define EvalPlanQualSetSlot(epqstate, slot) ((epqstate)->origslot = (slot)) +extern bool EvalPlanQualFetchRowMark(EPQState *epqstate, Index rti, TupleTableSlot *slot); +extern TupleTableSlot *EvalPlanQualNext(EPQState *epqstate); +extern void EvalPlanQualBegin(EPQState *epqstate); +extern void EvalPlanQualEnd(EPQState *epqstate); + +/* + * functions in execProcnode.c + */ +extern PlanState *ExecInitNode(Plan *node, EState *estate, int eflags); +extern void ExecSetExecProcNode(PlanState *node, ExecProcNodeMtd function); +extern Node *MultiExecProcNode(PlanState *node); +extern void ExecEndNode(PlanState *node); +extern bool ExecShutdownNode(PlanState *node); +extern void ExecSetTupleBound(int64 tuples_needed, PlanState *child_node); + + +/* ---------------------------------------------------------------- + * ExecProcNode + * + * Execute the given node to return a(nother) tuple. + * ---------------------------------------------------------------- + */ +#ifndef FRONTEND +static inline TupleTableSlot * +ExecProcNode(PlanState *node) +{ + if (node->chgParam != NULL) /* something changed? */ + ExecReScan(node); /* let ReScan handle this */ + + return node->ExecProcNode(node); +} +#endif + +/* + * prototypes from functions in execExpr.c + */ +extern ExprState *ExecInitExpr(Expr *node, PlanState *parent); +extern ExprState *ExecInitExprWithParams(Expr *node, ParamListInfo ext_params); +extern ExprState *ExecInitQual(List *qual, PlanState *parent); +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 nullcheck); +extern ExprState *ExecBuildGroupingEqual(TupleDesc ldesc, TupleDesc rdesc, + 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); +extern ProjectionInfo *ExecBuildProjectionInfoExt(List *targetList, + ExprContext *econtext, + TupleTableSlot *slot, + bool assignJunkEntries, + 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); +extern List *ExecPrepareExprList(List *nodes, EState *estate); + +/* + * ExecEvalExpr + * + * Evaluate expression identified by "state" in the execution context + * given by "econtext". *isNull is set to the is-null flag for the result, + * and the Datum value is the function result. + * + * The caller should already have switched into the temporary memory + * context econtext->ecxt_per_tuple_memory. The convenience entry point + * ExecEvalExprSwitchContext() is provided for callers who don't prefer to + * do the switch in an outer loop. + */ +#ifndef FRONTEND +static inline Datum +ExecEvalExpr(ExprState *state, + ExprContext *econtext, + bool *isNull) +{ + return state->evalfunc(state, econtext, isNull); +} +#endif + +/* + * ExecEvalExprSwitchContext + * + * Same as ExecEvalExpr, but get into the right allocation context explicitly. + */ +#ifndef FRONTEND +static inline Datum +ExecEvalExprSwitchContext(ExprState *state, + ExprContext *econtext, + bool *isNull) +{ + Datum retDatum; + MemoryContext oldContext; + + oldContext = MemoryContextSwitchTo(econtext->ecxt_per_tuple_memory); + retDatum = state->evalfunc(state, econtext, isNull); + MemoryContextSwitchTo(oldContext); + return retDatum; +} +#endif + +/* + * ExecProject + * + * Projects a tuple based on projection info and stores it in the slot passed + * 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 + * constructed in the exprContext. If the caller wishes the result to be + * valid longer than that data will be valid, he must call ExecMaterializeSlot + * on the result slot. + */ +#ifndef FRONTEND +static inline TupleTableSlot * +ExecProject(ProjectionInfo *projInfo) +{ + ExprContext *econtext = projInfo->pi_exprContext; + ExprState *state = &projInfo->pi_state; + TupleTableSlot *slot = state->resultslot; + bool isnull; + + /* + * Clear any former contents of the result slot. This makes it safe for + * us to use the slot's Datum/isnull arrays as workspace. + */ + ExecClearTuple(slot); + + /* Run the expression, discarding scalar result from the last column. */ + (void) ExecEvalExprSwitchContext(state, econtext, &isnull); + + /* + * Successfully formed a result row. Mark the result slot as containing a + * valid virtual tuple (inlined version of ExecStoreVirtualTuple()). + */ + slot->tts_flags &= ~TTS_FLAG_EMPTY; + slot->tts_nvalid = slot->tts_tupleDescriptor->natts; + + return slot; +} +#endif + +/* + * ExecQual - evaluate a qual prepared with ExecInitQual (possibly via + * ExecPrepareQual). Returns true if qual is satisfied, else false. + * + * Note: ExecQual used to have a third argument "resultForNull". The + * behavior of this function now corresponds to resultForNull == false. + * If you want the resultForNull == true behavior, see ExecCheck. + */ +#ifndef FRONTEND +static inline bool +ExecQual(ExprState *state, ExprContext *econtext) +{ + Datum ret; + bool isnull; + + /* short-circuit (here and in ExecInitQual) for empty restriction list */ + if (state == NULL) + return true; + + /* verify that expression was compiled using ExecInitQual */ + Assert(state->flags & EEO_FLAG_IS_QUAL); + + ret = ExecEvalExprSwitchContext(state, econtext, &isnull); + + /* EEOP_QUAL should never return NULL */ + Assert(!isnull); + + return DatumGetBool(ret); +} +#endif + +/* + * ExecQualAndReset() - evaluate qual with ExecQual() and reset expression + * context. + */ +#ifndef FRONTEND +static inline bool +ExecQualAndReset(ExprState *state, ExprContext *econtext) +{ + bool ret = ExecQual(state, econtext); + + /* inline ResetExprContext, to avoid ordering issue in this file */ + MemoryContextReset(econtext->ecxt_per_tuple_memory); + return ret; +} +#endif + +extern bool ExecCheck(ExprState *state, ExprContext *context); + +/* + * prototypes from functions in execSRF.c + */ +extern SetExprState *ExecInitTableFunctionResult(Expr *expr, + ExprContext *econtext, PlanState *parent); +extern Tuplestorestate *ExecMakeTableFunctionResult(SetExprState *setexpr, + ExprContext *econtext, + MemoryContext argContext, + TupleDesc expectedDesc, + bool randomAccess); +extern SetExprState *ExecInitFunctionResultSet(Expr *expr, + ExprContext *econtext, PlanState *parent); +extern Datum ExecMakeFunctionResultSet(SetExprState *fcache, + ExprContext *econtext, + MemoryContext argContext, + bool *isNull, + ExprDoneCond *isDone); + +/* + * prototypes from functions in execScan.c + */ +typedef TupleTableSlot *(*ExecScanAccessMtd) (ScanState *node); +typedef bool (*ExecScanRecheckMtd) (ScanState *node, TupleTableSlot *slot); + +extern TupleTableSlot *ExecScan(ScanState *node, ExecScanAccessMtd accessMtd, + 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 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, + 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); + +typedef struct TupOutputState +{ + TupleTableSlot *slot; + DestReceiver *dest; +} TupOutputState; + +extern TupOutputState *begin_tup_output_tupdesc(DestReceiver *dest, + 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); + +/* + * Write a single line of text given as a C string. + * + * Should only be used with a single-TEXT-attribute tupdesc. + */ +#define do_text_output_oneline(tstate, str_to_emit) \ + do { \ + Datum values_[1]; \ + bool isnull_[1]; \ + values_[0] = PointerGetDatum(cstring_to_text(str_to_emit)); \ + isnull_[0] = false; \ + do_tup_output(tstate, values_, isnull_); \ + pfree(DatumGetPointer(values_[0])); \ + } while (0) + + +/* + * prototypes from functions in execUtils.c + */ +extern EState *CreateExecutorState(void); +extern void FreeExecutorState(EState *estate); +extern ExprContext *CreateExprContext(EState *estate); +extern ExprContext *CreateWorkExprContext(EState *estate); +extern ExprContext *CreateStandaloneExprContext(void); +extern void FreeExprContext(ExprContext *econtext, bool isCommit); +extern void ReScanExprContext(ExprContext *econtext); + +#define ResetExprContext(econtext) \ + MemoryContextReset((econtext)->ecxt_per_tuple_memory) + +extern ExprContext *MakePerTupleExprContext(EState *estate); + +/* Get an EState's per-output-tuple exprcontext, making it if first use */ +#define GetPerTupleExprContext(estate) \ + ((estate)->es_per_tuple_exprcontext ? \ + (estate)->es_per_tuple_exprcontext : \ + MakePerTupleExprContext(estate)) + +#define GetPerTupleMemoryContext(estate) \ + (GetPerTupleExprContext(estate)->ecxt_per_tuple_memory) + +/* Reset an EState's per-output-tuple exprcontext, if one's been created */ +#define ResetPerTupleExprContext(estate) \ + do { \ + if ((estate)->es_per_tuple_exprcontext) \ + ResetExprContext((estate)->es_per_tuple_exprcontext); \ + } while (0) + +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); +extern void ExecConditionalAssignProjectionInfo(PlanState *planstate, + TupleDesc inputDesc, Index varno); +extern void ExecFreeExprContext(PlanState *planstate); +extern void ExecAssignScanType(ScanState *scanstate, TupleDesc tupDesc); +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 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); +extern void UnregisterExprContextCallback(ExprContext *econtext, + ExprContextCallbackFunction function, + Datum arg); + +extern Datum GetAttributeByName(HeapTupleHeader tuple, const char *attname, + bool *isNull); +extern Datum GetAttributeByNum(HeapTupleHeader tuple, AttrNumber attrno, + 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); + +extern Bitmapset *ExecGetInsertedCols(ResultRelInfo *relinfo, EState *estate); +extern Bitmapset *ExecGetUpdatedCols(ResultRelInfo *relinfo, EState *estate); +extern Bitmapset *ExecGetExtraUpdatedCols(ResultRelInfo *relinfo, EState *estate); +extern Bitmapset *ExecGetAllUpdatedCols(ResultRelInfo *relinfo, EState *estate); + +/* + * prototypes from functions in execIndexing.c + */ +extern void ExecOpenIndices(ResultRelInfo *resultRelInfo, bool speculative); +extern void ExecCloseIndices(ResultRelInfo *resultRelInfo); +extern List *ExecInsertIndexTuples(TupleTableSlot *slot, EState *estate, bool noDupErr, + bool *specConflict, List *arbiterIndexes); +extern bool ExecCheckIndexConstraints(TupleTableSlot *slot, EState *estate, + 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); + +/* + * prototypes from functions in execReplication.c + */ +extern bool RelationFindReplTupleByIndex(Relation rel, Oid idxoid, + LockTupleMode lockmode, + TupleTableSlot *searchslot, + TupleTableSlot *outslot); +extern bool RelationFindReplTupleSeq(Relation rel, LockTupleMode lockmode, + TupleTableSlot *searchslot, TupleTableSlot *outslot); + +extern void ExecSimpleRelationInsert(EState *estate, TupleTableSlot *slot); +extern void ExecSimpleRelationUpdate(EState *estate, EPQState *epqstate, + TupleTableSlot *searchslot, TupleTableSlot *slot); +extern void ExecSimpleRelationDelete(EState *estate, EPQState *epqstate, + TupleTableSlot *searchslot); +extern void CheckCmdReplicaIdentity(Relation rel, CmdType cmd); + +extern void CheckSubscriptionRelkind(char relkind, const char *nspname, + const char *relname); + +#endif /* EXECUTOR_H */ |