PostgreSQL Source Code  git master
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros
executor.h File Reference
Include dependency graph for executor.h:
This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures

struct  TupOutputState
 

Macros

#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 EvalPlanQualSetSlot(epqstate, slot)   ((epqstate)->origslot = (slot))
 
#define do_text_output_oneline(tstate, str_to_emit)
 
#define ResetExprContext(econtext)   MemoryContextReset((econtext)->ecxt_per_tuple_memory)
 
#define GetPerTupleExprContext(estate)
 
#define GetPerTupleMemoryContext(estate)   (GetPerTupleExprContext(estate)->ecxt_per_tuple_memory)
 
#define ResetPerTupleExprContext(estate)
 

Typedefs

typedef void(* ExecutorStart_hook_type )(QueryDesc *queryDesc, int eflags)
 
typedef void(* ExecutorRun_hook_type )(QueryDesc *queryDesc, ScanDirection direction, uint64 count, bool execute_once)
 
typedef void(* ExecutorFinish_hook_type )(QueryDesc *queryDesc)
 
typedef void(* ExecutorEnd_hook_type )(QueryDesc *queryDesc)
 
typedef bool(* ExecutorCheckPerms_hook_type )(List *, bool)
 
typedef TupleTableSlot *(* ExecScanAccessMtd )(ScanState *node)
 
typedef bool(* ExecScanRecheckMtd )(ScanState *node, TupleTableSlot *slot)
 
typedef struct TupOutputState TupOutputState
 

Functions

void ExecReScan (PlanState *node)
 
void ExecMarkPos (PlanState *node)
 
void ExecRestrPos (PlanState *node)
 
bool ExecSupportsMarkRestore (struct Path *pathnode)
 
bool ExecSupportsBackwardScan (Plan *node)
 
bool ExecMaterializesOutput (NodeTag plantype)
 
bool execCurrentOf (CurrentOfExpr *cexpr, ExprContext *econtext, Oid table_oid, ItemPointer current_tid)
 
bool execTuplesMatch (TupleTableSlot *slot1, TupleTableSlot *slot2, int numCols, AttrNumber *matchColIdx, FmgrInfo *eqfunctions, MemoryContext evalContext)
 
bool execTuplesUnequal (TupleTableSlot *slot1, TupleTableSlot *slot2, int numCols, AttrNumber *matchColIdx, FmgrInfo *eqfunctions, MemoryContext evalContext)
 
FmgrInfoexecTuplesMatchPrepare (int numCols, Oid *eqOperators)
 
void execTuplesHashPrepare (int numCols, Oid *eqOperators, FmgrInfo **eqFunctions, FmgrInfo **hashFunctions)
 
TupleHashTable BuildTupleHashTable (int numCols, AttrNumber *keyColIdx, FmgrInfo *eqfunctions, FmgrInfo *hashfunctions, long nbuckets, Size additionalsize, MemoryContext tablecxt, MemoryContext tempcxt, bool use_variable_hash_iv)
 
TupleHashEntry LookupTupleHashEntry (TupleHashTable hashtable, TupleTableSlot *slot, bool *isnew)
 
TupleHashEntry FindTupleHashEntry (TupleHashTable hashtable, TupleTableSlot *slot, FmgrInfo *eqfunctions, FmgrInfo *hashfunctions)
 
JunkFilterExecInitJunkFilter (List *targetList, bool hasoid, TupleTableSlot *slot)
 
JunkFilterExecInitJunkFilterConversion (List *targetList, TupleDesc cleanTupType, TupleTableSlot *slot)
 
AttrNumber ExecFindJunkAttribute (JunkFilter *junkfilter, const char *attrName)
 
AttrNumber ExecFindJunkAttributeInTlist (List *targetlist, const char *attrName)
 
Datum ExecGetJunkAttribute (TupleTableSlot *slot, AttrNumber attno, bool *isNull)
 
TupleTableSlotExecFilterJunk (JunkFilter *junkfilter, TupleTableSlot *slot)
 
void ExecutorStart (QueryDesc *queryDesc, int eflags)
 
void standard_ExecutorStart (QueryDesc *queryDesc, int eflags)
 
void ExecutorRun (QueryDesc *queryDesc, ScanDirection direction, uint64 count, bool execute_once)
 
void standard_ExecutorRun (QueryDesc *queryDesc, ScanDirection direction, uint64 count, bool execute_once)
 
void ExecutorFinish (QueryDesc *queryDesc)
 
void standard_ExecutorFinish (QueryDesc *queryDesc)
 
void ExecutorEnd (QueryDesc *queryDesc)
 
void standard_ExecutorEnd (QueryDesc *queryDesc)
 
void ExecutorRewind (QueryDesc *queryDesc)
 
bool ExecCheckRTPerms (List *rangeTable, bool ereport_on_violation)
 
void CheckValidResultRel (Relation resultRel, CmdType operation)
 
void InitResultRelInfo (ResultRelInfo *resultRelInfo, Relation resultRelationDesc, Index resultRelationIndex, Relation partition_root, int instrument_options)
 
ResultRelInfoExecGetTriggerResultRel (EState *estate, Oid relid)
 
void ExecCleanUpTriggerState (EState *estate)
 
bool ExecContextForcesOids (PlanState *planstate, bool *hasoids)
 
void ExecConstraints (ResultRelInfo *resultRelInfo, TupleTableSlot *slot, EState *estate)
 
void ExecWithCheckOptions (WCOKind kind, ResultRelInfo *resultRelInfo, TupleTableSlot *slot, EState *estate)
 
LockTupleMode ExecUpdateLockMode (EState *estate, ResultRelInfo *relinfo)
 
ExecRowMarkExecFindRowMark (EState *estate, Index rti, bool missing_ok)
 
ExecAuxRowMarkExecBuildAuxRowMark (ExecRowMark *erm, List *targetlist)
 
TupleTableSlotEvalPlanQual (EState *estate, EPQState *epqstate, Relation relation, Index rti, int lockmode, ItemPointer tid, TransactionId priorXmax)
 
HeapTuple EvalPlanQualFetch (EState *estate, Relation relation, int lockmode, LockWaitPolicy wait_policy, ItemPointer tid, TransactionId priorXmax)
 
void EvalPlanQualInit (EPQState *epqstate, EState *estate, Plan *subplan, List *auxrowmarks, int epqParam)
 
void EvalPlanQualSetPlan (EPQState *epqstate, Plan *subplan, List *auxrowmarks)
 
void EvalPlanQualSetTuple (EPQState *epqstate, Index rti, HeapTuple tuple)
 
HeapTuple EvalPlanQualGetTuple (EPQState *epqstate, Index rti)
 
void ExecSetupPartitionTupleRouting (Relation rel, Index resultRTindex, PartitionDispatch **pd, ResultRelInfo **partitions, TupleConversionMap ***tup_conv_maps, TupleTableSlot **partition_tuple_slot, int *num_parted, int *num_partitions)
 
int ExecFindPartition (ResultRelInfo *resultRelInfo, PartitionDispatch *pd, TupleTableSlot *slot, EState *estate)
 
void EvalPlanQualFetchRowMarks (EPQState *epqstate)
 
TupleTableSlotEvalPlanQualNext (EPQState *epqstate)
 
void EvalPlanQualBegin (EPQState *epqstate, EState *parentestate)
 
void EvalPlanQualEnd (EPQState *epqstate)
 
PlanStateExecInitNode (Plan *node, EState *estate, int eflags)
 
TupleTableSlotExecProcNode (PlanState *node)
 
NodeMultiExecProcNode (PlanState *node)
 
void ExecEndNode (PlanState *node)
 
bool ExecShutdownNode (PlanState *node)
 
ExprStateExecInitExpr (Expr *node, PlanState *parent)
 
ExprStateExecInitQual (List *qual, PlanState *parent)
 
ExprStateExecInitCheck (List *qual, PlanState *parent)
 
ListExecInitExprList (List *nodes, PlanState *parent)
 
ProjectionInfoExecBuildProjectionInfo (List *targetList, ExprContext *econtext, TupleTableSlot *slot, PlanState *parent, TupleDesc inputDesc)
 
ExprStateExecPrepareExpr (Expr *node, EState *estate)
 
ExprStateExecPrepareQual (List *qual, EState *estate)
 
ExprStateExecPrepareCheck (List *qual, EState *estate)
 
ListExecPrepareExprList (List *nodes, EState *estate)
 
static Datum ExecEvalExpr (ExprState *state, ExprContext *econtext, bool *isNull)
 
static Datum ExecEvalExprSwitchContext (ExprState *state, ExprContext *econtext, bool *isNull)
 
static TupleTableSlotExecProject (ProjectionInfo *projInfo)
 
static bool ExecQual (ExprState *state, ExprContext *econtext)
 
bool ExecCheck (ExprState *state, ExprContext *context)
 
SetExprStateExecInitTableFunctionResult (Expr *expr, ExprContext *econtext, PlanState *parent)
 
TuplestorestateExecMakeTableFunctionResult (SetExprState *setexpr, ExprContext *econtext, MemoryContext argContext, TupleDesc expectedDesc, bool randomAccess)
 
SetExprStateExecInitFunctionResultSet (Expr *expr, ExprContext *econtext, PlanState *parent)
 
Datum ExecMakeFunctionResultSet (SetExprState *fcache, ExprContext *econtext, bool *isNull, ExprDoneCond *isDone)
 
TupleTableSlotExecScan (ScanState *node, ExecScanAccessMtd accessMtd, ExecScanRecheckMtd recheckMtd)
 
void ExecAssignScanProjectionInfo (ScanState *node)
 
void ExecAssignScanProjectionInfoWithVarno (ScanState *node, Index varno)
 
void ExecScanReScan (ScanState *node)
 
void ExecInitResultTupleSlot (EState *estate, PlanState *planstate)
 
void ExecInitScanTupleSlot (EState *estate, ScanState *scanstate)
 
TupleTableSlotExecInitExtraTupleSlot (EState *estate)
 
TupleTableSlotExecInitNullTupleSlot (EState *estate, TupleDesc tupType)
 
TupleDesc ExecTypeFromTL (List *targetList, bool hasoid)
 
TupleDesc ExecCleanTypeFromTL (List *targetList, bool hasoid)
 
TupleDesc ExecTypeFromExprList (List *exprList)
 
void ExecTypeSetColNames (TupleDesc typeInfo, List *namesList)
 
void UpdateChangedParamSet (PlanState *node, Bitmapset *newchg)
 
TupOutputStatebegin_tup_output_tupdesc (DestReceiver *dest, TupleDesc tupdesc)
 
void do_tup_output (TupOutputState *tstate, Datum *values, bool *isnull)
 
void do_text_output_multiline (TupOutputState *tstate, const char *txt)
 
void end_tup_output (TupOutputState *tstate)
 
EStateCreateExecutorState (void)
 
void FreeExecutorState (EState *estate)
 
ExprContextCreateExprContext (EState *estate)
 
ExprContextCreateStandaloneExprContext (void)
 
void FreeExprContext (ExprContext *econtext, bool isCommit)
 
void ReScanExprContext (ExprContext *econtext)
 
ExprContextMakePerTupleExprContext (EState *estate)
 
void ExecAssignExprContext (EState *estate, PlanState *planstate)
 
void ExecAssignResultType (PlanState *planstate, TupleDesc tupDesc)
 
void ExecAssignResultTypeFromTL (PlanState *planstate)
 
TupleDesc ExecGetResultType (PlanState *planstate)
 
void ExecAssignProjectionInfo (PlanState *planstate, TupleDesc inputDesc)
 
void ExecFreeExprContext (PlanState *planstate)
 
void ExecAssignScanType (ScanState *scanstate, TupleDesc tupDesc)
 
void ExecAssignScanTypeFromOuterPlan (ScanState *scanstate)
 
bool ExecRelationIsTargetRelation (EState *estate, Index scanrelid)
 
Relation ExecOpenScanRelation (EState *estate, Index scanrelid, int eflags)
 
void ExecCloseScanRelation (Relation scanrel)
 
int executor_errposition (EState *estate, int location)
 
void RegisterExprContextCallback (ExprContext *econtext, ExprContextCallbackFunction function, Datum arg)
 
void UnregisterExprContextCallback (ExprContext *econtext, ExprContextCallbackFunction function, Datum arg)
 
void ExecLockNonLeafAppendTables (List *partitioned_rels, EState *estate)
 
Datum GetAttributeByName (HeapTupleHeader tuple, const char *attname, bool *isNull)
 
Datum GetAttributeByNum (HeapTupleHeader tuple, AttrNumber attrno, bool *isNull)
 
int ExecTargetListLength (List *targetlist)
 
int ExecCleanTargetListLength (List *targetlist)
 
void ExecOpenIndices (ResultRelInfo *resultRelInfo, bool speculative)
 
void ExecCloseIndices (ResultRelInfo *resultRelInfo)
 
ListExecInsertIndexTuples (TupleTableSlot *slot, ItemPointer tupleid, EState *estate, bool noDupErr, bool *specConflict, List *arbiterIndexes)
 
bool ExecCheckIndexConstraints (TupleTableSlot *slot, EState *estate, ItemPointer conflictTid, List *arbiterIndexes)
 
void check_exclusion_constraint (Relation heap, Relation index, IndexInfo *indexInfo, ItemPointer tupleid, Datum *values, bool *isnull, EState *estate, bool newIndex)
 
bool RelationFindReplTupleByIndex (Relation rel, Oid idxoid, LockTupleMode lockmode, TupleTableSlot *searchslot, TupleTableSlot *outslot)
 
bool RelationFindReplTupleSeq (Relation rel, LockTupleMode lockmode, TupleTableSlot *searchslot, TupleTableSlot *outslot)
 
void ExecSimpleRelationInsert (EState *estate, TupleTableSlot *slot)
 
void ExecSimpleRelationUpdate (EState *estate, EPQState *epqstate, TupleTableSlot *searchslot, TupleTableSlot *slot)
 
void ExecSimpleRelationDelete (EState *estate, EPQState *epqstate, TupleTableSlot *searchslot)
 
void CheckCmdReplicaIdentity (Relation rel, CmdType cmd)
 
void CheckSubscriptionRelkind (char relkind, const char *nspname, const char *relname)
 

Variables

PGDLLIMPORT ExecutorStart_hook_type ExecutorStart_hook
 
PGDLLIMPORT ExecutorRun_hook_type ExecutorRun_hook
 
PGDLLIMPORT
ExecutorFinish_hook_type 
ExecutorFinish_hook
 
PGDLLIMPORT ExecutorEnd_hook_type ExecutorEnd_hook
 
PGDLLIMPORT
ExecutorCheckPerms_hook_type 
ExecutorCheckPerms_hook
 

Macro Definition Documentation

#define do_text_output_oneline (   tstate,
  str_to_emit 
)
Value:
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)
#define PointerGetDatum(X)
Definition: postgres.h:562
char bool
Definition: c.h:202
void pfree(void *pointer)
Definition: mcxt.c:950
uintptr_t Datum
Definition: postgres.h:372
text * cstring_to_text(const char *s)
Definition: varlena.c:149
#define DatumGetPointer(X)
Definition: postgres.h:555
void do_tup_output(TupOutputState *tstate, Datum *values, bool *isnull)
Definition: execTuples.c:1250

Definition at line 430 of file executor.h.

Referenced by ExplainQuery(), and ShowGUCConfigOption().

#define EvalPlanQualSetSlot (   epqstate,
  slot 
)    ((epqstate)->origslot = (slot))
#define EXEC_FLAG_SKIP_TRIGGERS   0x0010 /* skip AfterTrigger calls */
#define EXEC_FLAG_WITH_NO_DATA   0x0080 /* rel scannability doesn't matter */

Definition at line 65 of file executor.h.

Referenced by ExecOpenScanRelation(), GetIntoRelEFlags(), and InitPlan().

#define EXEC_FLAG_WITH_OIDS   0x0020 /* force OIDs in returned tuples */

Definition at line 63 of file executor.h.

Referenced by ExecContextForcesOids(), and GetIntoRelEFlags().

#define EXEC_FLAG_WITHOUT_OIDS   0x0040 /* force no OIDs in returned tuples */

Definition at line 64 of file executor.h.

Referenced by ExecContextForcesOids(), GetIntoRelEFlags(), and refresh_matview_datafill().

#define ResetPerTupleExprContext (   estate)
Value:
do { \
if ((estate)->es_per_tuple_exprcontext) \
ResetExprContext((estate)->es_per_tuple_exprcontext); \
} while (0)
#define ResetExprContext(econtext)
Definition: executor.h:451

Definition at line 466 of file executor.h.

Referenced by comparetup_cluster(), CopyFrom(), ExecModifyTable(), ExecPostprocessPlan(), and ExecutePlan().

Typedef Documentation

typedef TupleTableSlot*(* ExecScanAccessMtd)(ScanState *node)

Definition at line 390 of file executor.h.

typedef bool(* ExecScanRecheckMtd)(ScanState *node, TupleTableSlot *slot)

Definition at line 391 of file executor.h.

typedef bool(* ExecutorCheckPerms_hook_type)(List *, bool)

Definition at line 88 of file executor.h.

typedef void(* ExecutorEnd_hook_type)(QueryDesc *queryDesc)

Definition at line 84 of file executor.h.

typedef void(* ExecutorFinish_hook_type)(QueryDesc *queryDesc)

Definition at line 80 of file executor.h.

typedef void(* ExecutorRun_hook_type)(QueryDesc *queryDesc, ScanDirection direction, uint64 count, bool execute_once)

Definition at line 73 of file executor.h.

typedef void(* ExecutorStart_hook_type)(QueryDesc *queryDesc, int eflags)

Definition at line 69 of file executor.h.

Function Documentation

TupOutputState* begin_tup_output_tupdesc ( DestReceiver dest,
TupleDesc  tupdesc 
)

Definition at line 1232 of file execTuples.c.

References CMD_SELECT, TupOutputState::dest, MakeSingleTupleTableSlot(), palloc(), _DestReceiver::rStartup, and TupOutputState::slot.

Referenced by CreateReplicationSlot(), ExplainQuery(), IdentifySystem(), ShowAllGUCConfig(), ShowGUCConfigOption(), and StartReplication().

1233 {
1234  TupOutputState *tstate;
1235 
1236  tstate = (TupOutputState *) palloc(sizeof(TupOutputState));
1237 
1238  tstate->slot = MakeSingleTupleTableSlot(tupdesc);
1239  tstate->dest = dest;
1240 
1241  (*tstate->dest->rStartup) (tstate->dest, (int) CMD_SELECT, tupdesc);
1242 
1243  return tstate;
1244 }
void(* rStartup)(DestReceiver *self, int operation, TupleDesc typeinfo)
Definition: dest.h:121
TupleTableSlot * slot
Definition: executor.h:415
TupleTableSlot * MakeSingleTupleTableSlot(TupleDesc tupdesc)
Definition: execTuples.c:199
void * palloc(Size size)
Definition: mcxt.c:849
DestReceiver * dest
Definition: executor.h:416
TupleHashTable BuildTupleHashTable ( int  numCols,
AttrNumber keyColIdx,
FmgrInfo eqfunctions,
FmgrInfo hashfunctions,
long  nbuckets,
Size  additionalsize,
MemoryContext  tablecxt,
MemoryContext  tempcxt,
bool  use_variable_hash_iv 
)

Definition at line 290 of file execGrouping.c.

References Assert, TupleHashTableData::cur_eq_funcs, TupleHashTableData::entrysize, TupleHashTableData::hash_iv, hash_uint32(), TupleHashTableData::hashtab, TupleHashTableData::in_hash_funcs, TupleHashTableData::inputslot, TupleHashTableData::keyColIdx, MemoryContextAlloc(), Min, NULL, TupleHashTableData::numCols, ParallelWorkerNumber, TupleHashTableData::tab_eq_funcs, TupleHashTableData::tab_hash_funcs, TupleHashTableData::tablecxt, TupleHashTableData::tableslot, TupleHashTableData::tempcxt, and work_mem.

Referenced by build_hash_table(), and buildSubPlanHash().

296 {
297  TupleHashTable hashtable;
298  Size entrysize = sizeof(TupleHashEntryData) + additionalsize;
299 
300  Assert(nbuckets > 0);
301 
302  /* Limit initial table size request to not more than work_mem */
303  nbuckets = Min(nbuckets, (long) ((work_mem * 1024L) / entrysize));
304 
305  hashtable = (TupleHashTable)
306  MemoryContextAlloc(tablecxt, sizeof(TupleHashTableData));
307 
308  hashtable->numCols = numCols;
309  hashtable->keyColIdx = keyColIdx;
310  hashtable->tab_hash_funcs = hashfunctions;
311  hashtable->tab_eq_funcs = eqfunctions;
312  hashtable->tablecxt = tablecxt;
313  hashtable->tempcxt = tempcxt;
314  hashtable->entrysize = entrysize;
315  hashtable->tableslot = NULL; /* will be made on first lookup */
316  hashtable->inputslot = NULL;
317  hashtable->in_hash_funcs = NULL;
318  hashtable->cur_eq_funcs = NULL;
319 
320  /*
321  * If parallelism is in use, even if the master backend is performing the
322  * scan itself, we don't want to create the hashtable exactly the same way
323  * in all workers. As hashtables are iterated over in keyspace-order,
324  * doing so in all processes in the same way is likely to lead to
325  * "unbalanced" hashtables when the table size initially is
326  * underestimated.
327  */
328  if (use_variable_hash_iv)
330  else
331  hashtable->hash_iv = 0;
332 
333  hashtable->hashtab = tuplehash_create(tablecxt, nbuckets, hashtable);
334 
335  return hashtable;
336 }
TupleTableSlot * inputslot
Definition: execnodes.h:612
#define Min(x, y)
Definition: c.h:806
AttrNumber * keyColIdx
Definition: execnodes.h:604
FmgrInfo * tab_hash_funcs
Definition: execnodes.h:605
FmgrInfo * in_hash_funcs
Definition: execnodes.h:613
struct TupleHashEntryData TupleHashEntryData
MemoryContext tablecxt
Definition: execnodes.h:607
struct TupleHashTableData * TupleHashTable
Definition: execnodes.h:582
int ParallelWorkerNumber
Definition: parallel.c:94
Datum hash_uint32(uint32 k)
Definition: hashfunc.c:512
int work_mem
Definition: globals.c:113
tuplehash_hash * hashtab
Definition: execnodes.h:602
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
TupleTableSlot * tableslot
Definition: execnodes.h:610
size_t Size
Definition: c.h:356
void * MemoryContextAlloc(MemoryContext context, Size size)
Definition: mcxt.c:707
FmgrInfo * cur_eq_funcs
Definition: execnodes.h:614
MemoryContext tempcxt
Definition: execnodes.h:608
FmgrInfo * tab_eq_funcs
Definition: execnodes.h:606
void check_exclusion_constraint ( Relation  heap,
Relation  index,
IndexInfo indexInfo,
ItemPointer  tupleid,
Datum values,
bool isnull,
EState estate,
bool  newIndex 
)

Definition at line 863 of file execIndexing.c.

References CEOUC_WAIT, check_exclusion_or_unique_constraint(), and NULL.

Referenced by IndexCheckExclusion(), and unique_key_recheck().

868 {
869  (void) check_exclusion_or_unique_constraint(heap, index, indexInfo, tupleid,
870  values, isnull,
871  estate, newIndex,
872  CEOUC_WAIT, false, NULL);
873 }
static bool check_exclusion_or_unique_constraint(Relation heap, Relation index, IndexInfo *indexInfo, ItemPointer tupleid, Datum *values, bool *isnull, EState *estate, bool newIndex, CEOUC_WAIT_MODE waitMode, bool errorOK, ItemPointer conflictTid)
Definition: execIndexing.c:639
#define NULL
Definition: c.h:229
static Datum values[MAXATTR]
Definition: bootstrap.c:163
void CheckCmdReplicaIdentity ( Relation  rel,
CmdType  cmd 
)

Definition at line 540 of file execReplication.c.

References CMD_DELETE, CMD_UPDATE, ereport, errcode(), errhint(), errmsg(), ERROR, GetRelationPublicationActions(), OidIsValid, PublicationActions::pubdelete, PublicationActions::pubupdate, RelationData::rd_rel, RelationGetRelationName, RelationGetReplicaIndex(), and REPLICA_IDENTITY_FULL.

Referenced by CheckValidResultRel(), ExecSimpleRelationDelete(), ExecSimpleRelationInsert(), and ExecSimpleRelationUpdate().

541 {
542  PublicationActions *pubactions;
543 
544  /* We only need to do checks for UPDATE and DELETE. */
545  if (cmd != CMD_UPDATE && cmd != CMD_DELETE)
546  return;
547 
548  /* If relation has replica identity we are always good. */
549  if (rel->rd_rel->relreplident == REPLICA_IDENTITY_FULL ||
551  return;
552 
553  /*
554  * This is either UPDATE OR DELETE and there is no replica identity.
555  *
556  * Check if the table publishes UPDATES or DELETES.
557  */
558  pubactions = GetRelationPublicationActions(rel);
559  if (cmd == CMD_UPDATE && pubactions->pubupdate)
560  ereport(ERROR,
561  (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
562  errmsg("cannot update table \"%s\" because it does not have replica identity and publishes updates",
564  errhint("To enable updating the table, set REPLICA IDENTITY using ALTER TABLE.")));
565  else if (cmd == CMD_DELETE && pubactions->pubdelete)
566  ereport(ERROR,
567  (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
568  errmsg("cannot delete from table \"%s\" because it does not have replica identity and publishes deletes",
570  errhint("To enable deleting from the table, set REPLICA IDENTITY using ALTER TABLE.")));
571 }
int errhint(const char *fmt,...)
Definition: elog.c:987
Oid RelationGetReplicaIndex(Relation relation)
Definition: relcache.c:4680
int errcode(int sqlerrcode)
Definition: elog.c:575
Form_pg_class rd_rel
Definition: rel.h:114
#define OidIsValid(objectId)
Definition: c.h:538
#define REPLICA_IDENTITY_FULL
Definition: pg_class.h:179
#define ERROR
Definition: elog.h:43
#define RelationGetRelationName(relation)
Definition: rel.h:436
#define ereport(elevel, rest)
Definition: elog.h:122
struct PublicationActions * GetRelationPublicationActions(Relation relation)
Definition: relcache.c:5176
int errmsg(const char *fmt,...)
Definition: elog.c:797
void CheckSubscriptionRelkind ( char  relkind,
const char *  nspname,
const char *  relname 
)

Definition at line 580 of file execReplication.c.

References ereport, errcode(), errmsg(), ERROR, and RELKIND_RELATION.

Referenced by AlterSubscription_refresh(), CreateSubscription(), and logicalrep_rel_open().

582 {
583  /*
584  * We currently only support writing to regular tables.
585  */
586  if (relkind != RELKIND_RELATION)
587  ereport(ERROR,
588  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
589  errmsg("logical replication target relation \"%s.%s\" is not a table",
590  nspname, relname)));
591 }
int errcode(int sqlerrcode)
Definition: elog.c:575
#define ERROR
Definition: elog.h:43
#define ereport(elevel, rest)
Definition: elog.h:122
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define RELKIND_RELATION
Definition: pg_class.h:160
void CheckValidResultRel ( Relation  resultRel,
CmdType  operation 
)

Definition at line 1099 of file execMain.c.

References CheckCmdReplicaIdentity(), CMD_DELETE, CMD_INSERT, CMD_UPDATE, elog, ereport, errcode(), errhint(), errmsg(), ERROR, FdwRoutine::ExecForeignDelete, FdwRoutine::ExecForeignInsert, FdwRoutine::ExecForeignUpdate, GetFdwRoutineForRelation(), FdwRoutine::IsForeignRelUpdatable, MatViewIncrementalMaintenanceIsEnabled(), NULL, RelationData::rd_rel, RelationGetRelationName, RELKIND_FOREIGN_TABLE, RELKIND_MATVIEW, RELKIND_PARTITIONED_TABLE, RELKIND_RELATION, RELKIND_SEQUENCE, RELKIND_TOASTVALUE, RELKIND_VIEW, TriggerDesc::trig_delete_instead_row, TriggerDesc::trig_insert_instead_row, TriggerDesc::trig_update_instead_row, and RelationData::trigdesc.

Referenced by ExecInitModifyTable(), and ExecSetupPartitionTupleRouting().

1100 {
1101  TriggerDesc *trigDesc = resultRel->trigdesc;
1102  FdwRoutine *fdwroutine;
1103 
1104  switch (resultRel->rd_rel->relkind)
1105  {
1106  case RELKIND_RELATION:
1108  CheckCmdReplicaIdentity(resultRel, operation);
1109  break;
1110  case RELKIND_SEQUENCE:
1111  ereport(ERROR,
1112  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1113  errmsg("cannot change sequence \"%s\"",
1114  RelationGetRelationName(resultRel))));
1115  break;
1116  case RELKIND_TOASTVALUE:
1117  ereport(ERROR,
1118  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1119  errmsg("cannot change TOAST relation \"%s\"",
1120  RelationGetRelationName(resultRel))));
1121  break;
1122  case RELKIND_VIEW:
1123 
1124  /*
1125  * Okay only if there's a suitable INSTEAD OF trigger. Messages
1126  * here should match rewriteHandler.c's rewriteTargetView, except
1127  * that we omit errdetail because we haven't got the information
1128  * handy (and given that we really shouldn't get here anyway, it's
1129  * not worth great exertion to get).
1130  */
1131  switch (operation)
1132  {
1133  case CMD_INSERT:
1134  if (!trigDesc || !trigDesc->trig_insert_instead_row)
1135  ereport(ERROR,
1136  (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1137  errmsg("cannot insert into view \"%s\"",
1138  RelationGetRelationName(resultRel)),
1139  errhint("To enable inserting into the view, provide an INSTEAD OF INSERT trigger or an unconditional ON INSERT DO INSTEAD rule.")));
1140  break;
1141  case CMD_UPDATE:
1142  if (!trigDesc || !trigDesc->trig_update_instead_row)
1143  ereport(ERROR,
1144  (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1145  errmsg("cannot update view \"%s\"",
1146  RelationGetRelationName(resultRel)),
1147  errhint("To enable updating the view, provide an INSTEAD OF UPDATE trigger or an unconditional ON UPDATE DO INSTEAD rule.")));
1148  break;
1149  case CMD_DELETE:
1150  if (!trigDesc || !trigDesc->trig_delete_instead_row)
1151  ereport(ERROR,
1152  (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1153  errmsg("cannot delete from view \"%s\"",
1154  RelationGetRelationName(resultRel)),
1155  errhint("To enable deleting from the view, provide an INSTEAD OF DELETE trigger or an unconditional ON DELETE DO INSTEAD rule.")));
1156  break;
1157  default:
1158  elog(ERROR, "unrecognized CmdType: %d", (int) operation);
1159  break;
1160  }
1161  break;
1162  case RELKIND_MATVIEW:
1164  ereport(ERROR,
1165  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1166  errmsg("cannot change materialized view \"%s\"",
1167  RelationGetRelationName(resultRel))));
1168  break;
1169  case RELKIND_FOREIGN_TABLE:
1170  /* Okay only if the FDW supports it */
1171  fdwroutine = GetFdwRoutineForRelation(resultRel, false);
1172  switch (operation)
1173  {
1174  case CMD_INSERT:
1175  if (fdwroutine->ExecForeignInsert == NULL)
1176  ereport(ERROR,
1177  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1178  errmsg("cannot insert into foreign table \"%s\"",
1179  RelationGetRelationName(resultRel))));
1180  if (fdwroutine->IsForeignRelUpdatable != NULL &&
1181  (fdwroutine->IsForeignRelUpdatable(resultRel) & (1 << CMD_INSERT)) == 0)
1182  ereport(ERROR,
1183  (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1184  errmsg("foreign table \"%s\" does not allow inserts",
1185  RelationGetRelationName(resultRel))));
1186  break;
1187  case CMD_UPDATE:
1188  if (fdwroutine->ExecForeignUpdate == NULL)
1189  ereport(ERROR,
1190  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1191  errmsg("cannot update foreign table \"%s\"",
1192  RelationGetRelationName(resultRel))));
1193  if (fdwroutine->IsForeignRelUpdatable != NULL &&
1194  (fdwroutine->IsForeignRelUpdatable(resultRel) & (1 << CMD_UPDATE)) == 0)
1195  ereport(ERROR,
1196  (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1197  errmsg("foreign table \"%s\" does not allow updates",
1198  RelationGetRelationName(resultRel))));
1199  break;
1200  case CMD_DELETE:
1201  if (fdwroutine->ExecForeignDelete == NULL)
1202  ereport(ERROR,
1203  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
1204  errmsg("cannot delete from foreign table \"%s\"",
1205  RelationGetRelationName(resultRel))));
1206  if (fdwroutine->IsForeignRelUpdatable != NULL &&
1207  (fdwroutine->IsForeignRelUpdatable(resultRel) & (1 << CMD_DELETE)) == 0)
1208  ereport(ERROR,
1209  (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
1210  errmsg("foreign table \"%s\" does not allow deletes",
1211  RelationGetRelationName(resultRel))));
1212  break;
1213  default:
1214  elog(ERROR, "unrecognized CmdType: %d", (int) operation);
1215  break;
1216  }
1217  break;
1218  default:
1219  ereport(ERROR,
1220  (errcode(ERRCODE_WRONG_OBJECT_TYPE),
1221  errmsg("cannot change relation \"%s\"",
1222  RelationGetRelationName(resultRel))));
1223  break;
1224  }
1225 }
ExecForeignDelete_function ExecForeignDelete
Definition: fdwapi.h:199
int errhint(const char *fmt,...)
Definition: elog.c:987
bool MatViewIncrementalMaintenanceIsEnabled(void)
Definition: matview.c:860
ExecForeignInsert_function ExecForeignInsert
Definition: fdwapi.h:197
#define RELKIND_MATVIEW
Definition: pg_class.h:165
int errcode(int sqlerrcode)
Definition: elog.c:575
Form_pg_class rd_rel
Definition: rel.h:114
bool trig_insert_instead_row
Definition: reltrigger.h:57
#define ERROR
Definition: elog.h:43
TriggerDesc * trigdesc
Definition: rel.h:120
#define RelationGetRelationName(relation)
Definition: rel.h:436
#define RELKIND_FOREIGN_TABLE
Definition: pg_class.h:167
void CheckCmdReplicaIdentity(Relation rel, CmdType cmd)
#define ereport(elevel, rest)
Definition: elog.h:122
bool trig_update_instead_row
Definition: reltrigger.h:62
#define RELKIND_PARTITIONED_TABLE
Definition: pg_class.h:168
bool trig_delete_instead_row
Definition: reltrigger.h:67
#define RELKIND_TOASTVALUE
Definition: pg_class.h:163
ExecForeignUpdate_function ExecForeignUpdate
Definition: fdwapi.h:198
#define NULL
Definition: c.h:229
int errmsg(const char *fmt,...)
Definition: elog.c:797
FdwRoutine * GetFdwRoutineForRelation(Relation relation, bool makecopy)
Definition: foreign.c:395
#define RELKIND_VIEW
Definition: pg_class.h:164
IsForeignRelUpdatable_function IsForeignRelUpdatable
Definition: fdwapi.h:201
#define elog
Definition: elog.h:219
#define RELKIND_RELATION
Definition: pg_class.h:160
#define RELKIND_SEQUENCE
Definition: pg_class.h:162
EState* CreateExecutorState ( void  )

Definition at line 80 of file execUtils.c.

References ALLOCSET_DEFAULT_SIZES, AllocSetContextCreate(), CurrentMemoryContext, EState::es_auxmodifytables, EState::es_crosscheck_snapshot, EState::es_direction, EState::es_epqScanDone, EState::es_epqTuple, EState::es_epqTupleSet, EState::es_exprcontexts, EState::es_finished, EState::es_instrument, EState::es_junkFilter, EState::es_lastoid, EState::es_num_result_relations, EState::es_output_cid, EState::es_param_exec_vals, EState::es_param_list_info, EState::es_per_tuple_exprcontext, EState::es_plannedstmt, EState::es_processed, EState::es_query_cxt, EState::es_queryEnv, EState::es_range_table, EState::es_result_relation_info, EState::es_result_relations, EState::es_rowMarks, EState::es_snapshot, EState::es_sourceText, EState::es_subplanstates, EState::es_top_eflags, EState::es_trig_newtup_slot, EState::es_trig_oldtup_slot, EState::es_trig_target_relations, EState::es_trig_tuple_slot, EState::es_tupleTable, ForwardScanDirection, InvalidOid, InvalidSnapshot, makeNode, MemoryContextSwitchTo(), NIL, and NULL.

Referenced by afterTriggerInvokeEvents(), ATRewriteTable(), compute_index_stats(), CopyFrom(), create_estate_for_relation(), EvalPlanQualStart(), evaluate_expr(), ExecuteQuery(), ExecuteTruncate(), ExplainExecuteQuery(), get_actual_variable_range(), get_qual_for_range(), IndexBuildHeapRangeScan(), IndexCheckExclusion(), operator_predicate_proof(), plpgsql_create_econtext(), plpgsql_inline_handler(), standard_ExecutorStart(), tuplesort_begin_cluster(), unique_key_recheck(), validate_index_heapscan(), validateCheckConstraint(), and validateDomainConstraint().

81 {
82  EState *estate;
83  MemoryContext qcontext;
84  MemoryContext oldcontext;
85 
86  /*
87  * Create the per-query context for this Executor run.
88  */
90  "ExecutorState",
92 
93  /*
94  * Make the EState node within the per-query context. This way, we don't
95  * need a separate pfree() operation for it at shutdown.
96  */
97  oldcontext = MemoryContextSwitchTo(qcontext);
98 
99  estate = makeNode(EState);
100 
101  /*
102  * Initialize all fields of the Executor State structure
103  */
105  estate->es_snapshot = InvalidSnapshot; /* caller must initialize this */
106  estate->es_crosscheck_snapshot = InvalidSnapshot; /* no crosscheck */
107  estate->es_range_table = NIL;
108  estate->es_plannedstmt = NULL;
109 
110  estate->es_junkFilter = NULL;
111 
112  estate->es_output_cid = (CommandId) 0;
113 
114  estate->es_result_relations = NULL;
115  estate->es_num_result_relations = 0;
116  estate->es_result_relation_info = NULL;
117 
118  estate->es_trig_target_relations = NIL;
119  estate->es_trig_tuple_slot = NULL;
120  estate->es_trig_oldtup_slot = NULL;
121  estate->es_trig_newtup_slot = NULL;
122 
123  estate->es_param_list_info = NULL;
124  estate->es_param_exec_vals = NULL;
125 
126  estate->es_queryEnv = NULL;
127 
128  estate->es_query_cxt = qcontext;
129 
130  estate->es_tupleTable = NIL;
131 
132  estate->es_rowMarks = NIL;
133 
134  estate->es_processed = 0;
135  estate->es_lastoid = InvalidOid;
136 
137  estate->es_top_eflags = 0;
138  estate->es_instrument = 0;
139  estate->es_finished = false;
140 
141  estate->es_exprcontexts = NIL;
142 
143  estate->es_subplanstates = NIL;
144 
145  estate->es_auxmodifytables = NIL;
146 
147  estate->es_per_tuple_exprcontext = NULL;
148 
149  estate->es_epqTuple = NULL;
150  estate->es_epqTupleSet = NULL;
151  estate->es_epqScanDone = NULL;
152  estate->es_sourceText = NULL;
153 
154  /*
155  * Return the executor state structure
156  */
157  MemoryContextSwitchTo(oldcontext);
158 
159  return estate;
160 }
#define NIL
Definition: pg_list.h:69
uint32 CommandId
Definition: c.h:411
HeapTuple * es_epqTuple
Definition: execnodes.h:503
JunkFilter * es_junkFilter
Definition: execnodes.h:435
CommandId es_output_cid
Definition: execnodes.h:438
TupleTableSlot * es_trig_newtup_slot
Definition: execnodes.h:459
Oid es_lastoid
Definition: execnodes.h:475
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
PlannedStmt * es_plannedstmt
Definition: execnodes.h:432
Snapshot es_crosscheck_snapshot
Definition: execnodes.h:430
ExprContext * es_per_tuple_exprcontext
Definition: execnodes.h:492
Snapshot es_snapshot
Definition: execnodes.h:429
List * es_range_table
Definition: execnodes.h:431
ScanDirection es_direction
Definition: execnodes.h:428
const char * es_sourceText
Definition: execnodes.h:433
ParamExecData * es_param_exec_vals
Definition: execnodes.h:463
MemoryContext es_query_cxt
Definition: execnodes.h:468
#define ALLOCSET_DEFAULT_SIZES
Definition: memutils.h:165
ResultRelInfo * es_result_relations
Definition: execnodes.h:441
TupleTableSlot * es_trig_oldtup_slot
Definition: execnodes.h:458
MemoryContext CurrentMemoryContext
Definition: mcxt.c:37
int es_instrument
Definition: execnodes.h:478
TupleTableSlot * es_trig_tuple_slot
Definition: execnodes.h:457
QueryEnvironment * es_queryEnv
Definition: execnodes.h:465
#define InvalidSnapshot
Definition: snapshot.h:25
List * es_trig_target_relations
Definition: execnodes.h:456
List * es_tupleTable
Definition: execnodes.h:470
MemoryContext AllocSetContextCreate(MemoryContext parent, const char *name, Size minContextSize, Size initBlockSize, Size maxBlockSize)
Definition: aset.c:322
List * es_auxmodifytables
Definition: execnodes.h:485
int es_num_result_relations
Definition: execnodes.h:442
#define InvalidOid
Definition: postgres_ext.h:36
bool es_finished
Definition: execnodes.h:479
#define makeNode(_type_)
Definition: nodes.h:557
#define NULL
Definition: c.h:229
uint64 es_processed
Definition: execnodes.h:474
bool * es_epqTupleSet
Definition: execnodes.h:504
List * es_subplanstates
Definition: execnodes.h:483
List * es_rowMarks
Definition: execnodes.h:472
int es_top_eflags
Definition: execnodes.h:477
bool * es_epqScanDone
Definition: execnodes.h:505
ParamListInfo es_param_list_info
Definition: execnodes.h:462
List * es_exprcontexts
Definition: execnodes.h:481
ResultRelInfo * es_result_relation_info
Definition: execnodes.h:443
ExprContext* CreateExprContext ( EState estate)

Definition at line 218 of file execUtils.c.

References ALLOCSET_DEFAULT_SIZES, AllocSetContextCreate(), ExprContext::caseValue_datum, ExprContext::caseValue_isNull, ExprContext::domainValue_datum, ExprContext::domainValue_isNull, ExprContext::ecxt_aggnulls, ExprContext::ecxt_aggvalues, ExprContext::ecxt_callbacks, ExprContext::ecxt_estate, ExprContext::ecxt_innertuple, ExprContext::ecxt_outertuple, ExprContext::ecxt_param_exec_vals, ExprContext::ecxt_param_list_info, ExprContext::ecxt_per_query_memory, ExprContext::ecxt_per_tuple_memory, ExprContext::ecxt_scantuple, EState::es_exprcontexts, EState::es_param_exec_vals, EState::es_param_list_info, EState::es_query_cxt, lcons(), makeNode, MemoryContextSwitchTo(), and NULL.

Referenced by ExecAssignExprContext(), ExecInitMergeJoin(), ExecInitSubPlan(), MakePerTupleExprContext(), and plpgsql_create_econtext().

219 {
220  ExprContext *econtext;
221  MemoryContext oldcontext;
222 
223  /* Create the ExprContext node within the per-query memory context */
224  oldcontext = MemoryContextSwitchTo(estate->es_query_cxt);
225 
226  econtext = makeNode(ExprContext);
227 
228  /* Initialize fields of ExprContext */
229  econtext->ecxt_scantuple = NULL;
230  econtext->ecxt_innertuple = NULL;
231  econtext->ecxt_outertuple = NULL;
232 
233  econtext->ecxt_per_query_memory = estate->es_query_cxt;
234 
235  /*
236  * Create working memory for expression evaluation in this context.
237  */
238  econtext->ecxt_per_tuple_memory =
240  "ExprContext",
242 
243  econtext->ecxt_param_exec_vals = estate->es_param_exec_vals;
244  econtext->ecxt_param_list_info = estate->es_param_list_info;
245 
246  econtext->ecxt_aggvalues = NULL;
247  econtext->ecxt_aggnulls = NULL;
248 
249  econtext->caseValue_datum = (Datum) 0;
250  econtext->caseValue_isNull = true;
251 
252  econtext->domainValue_datum = (Datum) 0;
253  econtext->domainValue_isNull = true;
254 
255  econtext->ecxt_estate = estate;
256 
257  econtext->ecxt_callbacks = NULL;
258 
259  /*
260  * Link the ExprContext into the EState to ensure it is shut down when the
261  * EState is freed. Because we use lcons(), shutdowns will occur in
262  * reverse order of creation, which may not be essential but can't hurt.
263  */
264  estate->es_exprcontexts = lcons(econtext, estate->es_exprcontexts);
265 
266  MemoryContextSwitchTo(oldcontext);
267 
268  return econtext;
269 }
Datum * ecxt_aggvalues
Definition: execnodes.h:213
MemoryContext ecxt_per_tuple_memory
Definition: execnodes.h:203
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
Datum domainValue_datum
Definition: execnodes.h:221
ParamExecData * es_param_exec_vals
Definition: execnodes.h:463
MemoryContext es_query_cxt
Definition: execnodes.h:468
Datum caseValue_datum
Definition: execnodes.h:217
ExprContext_CB * ecxt_callbacks
Definition: execnodes.h:228
#define ALLOCSET_DEFAULT_SIZES
Definition: memutils.h:165
TupleTableSlot * ecxt_innertuple
Definition: execnodes.h:198
ParamExecData * ecxt_param_exec_vals
Definition: execnodes.h:206
struct EState * ecxt_estate
Definition: execnodes.h:225
bool domainValue_isNull
Definition: execnodes.h:222
bool * ecxt_aggnulls
Definition: execnodes.h:214
MemoryContext AllocSetContextCreate(MemoryContext parent, const char *name, Size minContextSize, Size initBlockSize, Size maxBlockSize)
Definition: aset.c:322
uintptr_t Datum
Definition: postgres.h:372
List * lcons(void *datum, List *list)
Definition: list.c:259
#define makeNode(_type_)
Definition: nodes.h:557
TupleTableSlot * ecxt_outertuple
Definition: execnodes.h:199
#define NULL
Definition: c.h:229
TupleTableSlot * ecxt_scantuple
Definition: execnodes.h:197
MemoryContext ecxt_per_query_memory
Definition: execnodes.h:202
bool caseValue_isNull
Definition: execnodes.h:218
ParamListInfo es_param_list_info
Definition: execnodes.h:462
List * es_exprcontexts
Definition: execnodes.h:481
ParamListInfo ecxt_param_list_info
Definition: execnodes.h:207
ExprContext* CreateStandaloneExprContext ( void  )

Definition at line 290 of file execUtils.c.

References ALLOCSET_DEFAULT_SIZES, AllocSetContextCreate(), ExprContext::caseValue_datum, ExprContext::caseValue_isNull, CurrentMemoryContext, ExprContext::domainValue_datum, ExprContext::domainValue_isNull, ExprContext::ecxt_aggnulls, ExprContext::ecxt_aggvalues, ExprContext::ecxt_callbacks, ExprContext::ecxt_estate, ExprContext::ecxt_innertuple, ExprContext::ecxt_outertuple, ExprContext::ecxt_param_exec_vals, ExprContext::ecxt_param_list_info, ExprContext::ecxt_per_query_memory, ExprContext::ecxt_per_tuple_memory, ExprContext::ecxt_scantuple, makeNode, and NULL.

Referenced by domain_check_input().

291 {
292  ExprContext *econtext;
293 
294  /* Create the ExprContext node within the caller's memory context */
295  econtext = makeNode(ExprContext);
296 
297  /* Initialize fields of ExprContext */
298  econtext->ecxt_scantuple = NULL;
299  econtext->ecxt_innertuple = NULL;
300  econtext->ecxt_outertuple = NULL;
301 
303 
304  /*
305  * Create working memory for expression evaluation in this context.
306  */
307  econtext->ecxt_per_tuple_memory =
309  "ExprContext",
311 
312  econtext->ecxt_param_exec_vals = NULL;
313  econtext->ecxt_param_list_info = NULL;
314 
315  econtext->ecxt_aggvalues = NULL;
316  econtext->ecxt_aggnulls = NULL;
317 
318  econtext->caseValue_datum = (Datum) 0;
319  econtext->caseValue_isNull = true;
320 
321  econtext->domainValue_datum = (Datum) 0;
322  econtext->domainValue_isNull = true;
323 
324  econtext->ecxt_estate = NULL;
325 
326  econtext->ecxt_callbacks = NULL;
327 
328  return econtext;
329 }
Datum * ecxt_aggvalues
Definition: execnodes.h:213
MemoryContext ecxt_per_tuple_memory
Definition: execnodes.h:203
Datum domainValue_datum
Definition: execnodes.h:221
Datum caseValue_datum
Definition: execnodes.h:217
ExprContext_CB * ecxt_callbacks
Definition: execnodes.h:228
#define ALLOCSET_DEFAULT_SIZES
Definition: memutils.h:165
TupleTableSlot * ecxt_innertuple
Definition: execnodes.h:198
ParamExecData * ecxt_param_exec_vals
Definition: execnodes.h:206
struct EState * ecxt_estate
Definition: execnodes.h:225
MemoryContext CurrentMemoryContext
Definition: mcxt.c:37
bool domainValue_isNull
Definition: execnodes.h:222
bool * ecxt_aggnulls
Definition: execnodes.h:214
MemoryContext AllocSetContextCreate(MemoryContext parent, const char *name, Size minContextSize, Size initBlockSize, Size maxBlockSize)
Definition: aset.c:322
uintptr_t Datum
Definition: postgres.h:372
#define makeNode(_type_)
Definition: nodes.h:557
TupleTableSlot * ecxt_outertuple
Definition: execnodes.h:199
#define NULL
Definition: c.h:229
TupleTableSlot * ecxt_scantuple
Definition: execnodes.h:197
MemoryContext ecxt_per_query_memory
Definition: execnodes.h:202
bool caseValue_isNull
Definition: execnodes.h:218
ParamListInfo ecxt_param_list_info
Definition: execnodes.h:207
void do_text_output_multiline ( TupOutputState tstate,
const char *  txt 
)

Definition at line 1278 of file execTuples.c.

References cstring_to_text_with_len(), DatumGetPointer, do_tup_output(), pfree(), PointerGetDatum, and values.

Referenced by ExplainQuery().

1279 {
1280  Datum values[1];
1281  bool isnull[1] = {false};
1282 
1283  while (*txt)
1284  {
1285  const char *eol;
1286  int len;
1287 
1288  eol = strchr(txt, '\n');
1289  if (eol)
1290  {
1291  len = eol - txt;
1292  eol++;
1293  }
1294  else
1295  {
1296  len = strlen(txt);
1297  eol = txt + len;
1298  }
1299 
1300  values[0] = PointerGetDatum(cstring_to_text_with_len(txt, len));
1301  do_tup_output(tstate, values, isnull);
1302  pfree(DatumGetPointer(values[0]));
1303  txt = eol;
1304  }
1305 }
#define PointerGetDatum(X)
Definition: postgres.h:562
void do_tup_output(TupOutputState *tstate, Datum *values, bool *isnull)
Definition: execTuples.c:1250
void pfree(void *pointer)
Definition: mcxt.c:950
text * cstring_to_text_with_len(const char *s, int len)
Definition: varlena.c:161
uintptr_t Datum
Definition: postgres.h:372
#define DatumGetPointer(X)
Definition: postgres.h:555
static Datum values[MAXATTR]
Definition: bootstrap.c:163
void do_tup_output ( TupOutputState tstate,
Datum values,
bool isnull 
)

Definition at line 1250 of file execTuples.c.

References TupOutputState::dest, ExecClearTuple(), ExecStoreVirtualTuple(), tupleDesc::natts, _DestReceiver::receiveSlot, TupOutputState::slot, TupleTableSlot::tts_isnull, TupleTableSlot::tts_tupleDescriptor, and TupleTableSlot::tts_values.

Referenced by CreateReplicationSlot(), do_text_output_multiline(), IdentifySystem(), ShowAllGUCConfig(), and StartReplication().

1251 {
1252  TupleTableSlot *slot = tstate->slot;
1253  int natts = slot->tts_tupleDescriptor->natts;
1254 
1255  /* make sure the slot is clear */
1256  ExecClearTuple(slot);
1257 
1258  /* insert data */
1259  memcpy(slot->tts_values, values, natts * sizeof(Datum));
1260  memcpy(slot->tts_isnull, isnull, natts * sizeof(bool));
1261 
1262  /* mark slot as containing a virtual tuple */
1263  ExecStoreVirtualTuple(slot);
1264 
1265  /* send the tuple to the receiver */
1266  (void) (*tstate->dest->receiveSlot) (slot, tstate->dest);
1267 
1268  /* clean up */
1269  ExecClearTuple(slot);
1270 }
TupleTableSlot * ExecClearTuple(TupleTableSlot *slot)
Definition: execTuples.c:439
Datum * tts_values
Definition: tuptable.h:125
TupleTableSlot * slot
Definition: executor.h:415
int natts
Definition: tupdesc.h:73
bool * tts_isnull
Definition: tuptable.h:126
TupleDesc tts_tupleDescriptor
Definition: tuptable.h:121
uintptr_t Datum
Definition: postgres.h:372
static Datum values[MAXATTR]
Definition: bootstrap.c:163
bool(* receiveSlot)(TupleTableSlot *slot, DestReceiver *self)
Definition: dest.h:118
DestReceiver * dest
Definition: executor.h:416
TupleTableSlot * ExecStoreVirtualTuple(TupleTableSlot *slot)
Definition: execTuples.c:488
void end_tup_output ( TupOutputState tstate)

Definition at line 1308 of file execTuples.c.

References TupOutputState::dest, ExecDropSingleTupleTableSlot(), pfree(), _DestReceiver::rShutdown, and TupOutputState::slot.

Referenced by CreateReplicationSlot(), ExplainQuery(), IdentifySystem(), ShowAllGUCConfig(), ShowGUCConfigOption(), and StartReplication().

1309 {
1310  (*tstate->dest->rShutdown) (tstate->dest);
1311  /* note that destroying the dest is not ours to do */
1313  pfree(tstate);
1314 }
void(* rShutdown)(DestReceiver *self)
Definition: dest.h:124
TupleTableSlot * slot
Definition: executor.h:415
void pfree(void *pointer)
Definition: mcxt.c:950
void ExecDropSingleTupleTableSlot(TupleTableSlot *slot)
Definition: execTuples.c:216
DestReceiver * dest
Definition: executor.h:416
TupleTableSlot* EvalPlanQual ( EState estate,
EPQState epqstate,
Relation  relation,
Index  rti,
int  lockmode,
ItemPointer  tid,
TransactionId  priorXmax 
)

Definition at line 2449 of file execMain.c.

References Assert, EvalPlanQualBegin(), EvalPlanQualFetch(), EvalPlanQualFetchRowMarks(), EvalPlanQualNext(), EvalPlanQualSetTuple(), ExecMaterializeSlot(), LockWaitBlock, NULL, HeapTupleData::t_self, and TupIsNull.

Referenced by ExecDelete(), ExecUpdate(), and GetTupleForTrigger().

2452 {
2453  TupleTableSlot *slot;
2454  HeapTuple copyTuple;
2455 
2456  Assert(rti > 0);
2457 
2458  /*
2459  * Get and lock the updated version of the row; if fail, return NULL.
2460  */
2461  copyTuple = EvalPlanQualFetch(estate, relation, lockmode, LockWaitBlock,
2462  tid, priorXmax);
2463 
2464  if (copyTuple == NULL)
2465  return NULL;
2466 
2467  /*
2468  * For UPDATE/DELETE we have to return tid of actual row we're executing
2469  * PQ for.
2470  */
2471  *tid = copyTuple->t_self;
2472 
2473  /*
2474  * Need to run a recheck subquery. Initialize or reinitialize EPQ state.
2475  */
2476  EvalPlanQualBegin(epqstate, estate);
2477 
2478  /*
2479  * Free old test tuple, if any, and store new tuple where relation's scan
2480  * node will see it
2481  */
2482  EvalPlanQualSetTuple(epqstate, rti, copyTuple);
2483 
2484  /*
2485  * Fetch any non-locked source rows
2486  */
2487  EvalPlanQualFetchRowMarks(epqstate);
2488 
2489  /*
2490  * Run the EPQ query. We assume it will return at most one tuple.
2491  */
2492  slot = EvalPlanQualNext(epqstate);
2493 
2494  /*
2495  * If we got a tuple, force the slot to materialize the tuple so that it
2496  * is not dependent on any local state in the EPQ query (in particular,
2497  * it's highly likely that the slot contains references to any pass-by-ref
2498  * datums that may be present in copyTuple). As with the next step, this
2499  * is to guard against early re-use of the EPQ query.
2500  */
2501  if (!TupIsNull(slot))
2502  (void) ExecMaterializeSlot(slot);
2503 
2504  /*
2505  * Clear out the test tuple. This is needed in case the EPQ query is
2506  * re-used to test a tuple for a different relation. (Not clear that can
2507  * really happen, but let's be safe.)
2508  */
2509  EvalPlanQualSetTuple(epqstate, rti, NULL);
2510 
2511  return slot;
2512 }
void EvalPlanQualSetTuple(EPQState *epqstate, Index rti, HeapTuple tuple)
Definition: execMain.c:2800
HeapTuple EvalPlanQualFetch(EState *estate, Relation relation, int lockmode, LockWaitPolicy wait_policy, ItemPointer tid, TransactionId priorXmax)
Definition: execMain.c:2536
void EvalPlanQualFetchRowMarks(EPQState *epqstate)
Definition: execMain.c:2835
void EvalPlanQualBegin(EPQState *epqstate, EState *parentestate)
Definition: execMain.c:2986
TupleTableSlot * EvalPlanQualNext(EPQState *epqstate)
Definition: execMain.c:2970
ItemPointerData t_self
Definition: htup.h:65
#define TupIsNull(slot)
Definition: tuptable.h:138
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
HeapTuple ExecMaterializeSlot(TupleTableSlot *slot)
Definition: execTuples.c:725
void EvalPlanQualBegin ( EPQState epqstate,
EState parentestate 
)

Definition at line 2986 of file execMain.c.

References bms_add_member(), PlanState::chgParam, EPQState::epqParam, EState::es_epqScanDone, EState::es_param_exec_vals, EState::es_plannedstmt, EState::es_range_table, EPQState::estate, EvalPlanQualStart(), i, ParamExecData::isnull, list_length(), MemSet, PlannedStmt::nParamExec, NULL, EPQState::plan, EPQState::planstate, and ParamExecData::value.

Referenced by EvalPlanQual(), and ExecLockRows().

2987 {
2988  EState *estate = epqstate->estate;
2989 
2990  if (estate == NULL)
2991  {
2992  /* First time through, so create a child EState */
2993  EvalPlanQualStart(epqstate, parentestate, epqstate->plan);
2994  }
2995  else
2996  {
2997  /*
2998  * We already have a suitable child EPQ tree, so just reset it.
2999  */
3000  int rtsize = list_length(parentestate->es_range_table);
3001  PlanState *planstate = epqstate->planstate;
3002 
3003  MemSet(estate->es_epqScanDone, 0, rtsize * sizeof(bool));
3004 
3005  /* Recopy current values of parent parameters */
3006  if (parentestate->es_plannedstmt->nParamExec > 0)
3007  {
3008  int i = parentestate->es_plannedstmt->nParamExec;
3009 
3010  while (--i >= 0)
3011  {
3012  /* copy value if any, but not execPlan link */
3013  estate->es_param_exec_vals[i].value =
3014  parentestate->es_param_exec_vals[i].value;
3015  estate->es_param_exec_vals[i].isnull =
3016  parentestate->es_param_exec_vals[i].isnull;
3017  }
3018  }
3019 
3020  /*
3021  * Mark child plan tree as needing rescan at all scan nodes. The
3022  * first ExecProcNode will take care of actually doing the rescan.
3023  */
3024  planstate->chgParam = bms_add_member(planstate->chgParam,
3025  epqstate->epqParam);
3026  }
3027 }
PlannedStmt * es_plannedstmt
Definition: execnodes.h:432
#define MemSet(start, val, len)
Definition: c.h:857
List * es_range_table
Definition: execnodes.h:431
PlanState * planstate
Definition: execnodes.h:896
int nParamExec
Definition: plannodes.h:92
ParamExecData * es_param_exec_vals
Definition: execnodes.h:463
bool isnull
Definition: params.h:101
static void EvalPlanQualStart(EPQState *epqstate, EState *parentestate, Plan *planTree)
Definition: execMain.c:3036
Bitmapset * chgParam
Definition: execnodes.h:856
Plan * plan
Definition: execnodes.h:898
#define NULL
Definition: c.h:229
static int list_length(const List *l)
Definition: pg_list.h:89
Bitmapset * bms_add_member(Bitmapset *a, int x)
Definition: bitmapset.c:698
int i
bool * es_epqScanDone
Definition: execnodes.h:505
Datum value
Definition: params.h:100
int epqParam
Definition: execnodes.h:900
EState * estate
Definition: execnodes.h:895
void EvalPlanQualEnd ( EPQState epqstate)

Definition at line 3176 of file execMain.c.

References EState::es_query_cxt, EState::es_subplanstates, EState::es_tupleTable, EPQState::estate, ExecCleanUpTriggerState(), ExecEndNode(), ExecResetTupleTable(), FreeExecutorState(), lfirst, MemoryContextSwitchTo(), NULL, EPQState::origslot, and EPQState::planstate.

Referenced by apply_handle_delete(), apply_handle_update(), EvalPlanQualSetPlan(), ExecEndLockRows(), and ExecEndModifyTable().

3177 {
3178  EState *estate = epqstate->estate;
3179  MemoryContext oldcontext;
3180  ListCell *l;
3181 
3182  if (estate == NULL)
3183  return; /* idle, so nothing to do */
3184 
3185  oldcontext = MemoryContextSwitchTo(estate->es_query_cxt);
3186 
3187  ExecEndNode(epqstate->planstate);
3188 
3189  foreach(l, estate->es_subplanstates)
3190  {
3191  PlanState *subplanstate = (PlanState *) lfirst(l);
3192 
3193  ExecEndNode(subplanstate);
3194  }
3195 
3196  /* throw away the per-estate tuple table */
3197  ExecResetTupleTable(estate->es_tupleTable, false);
3198 
3199  /* close any trigger target relations attached to this EState */
3200  ExecCleanUpTriggerState(estate);
3201 
3202  MemoryContextSwitchTo(oldcontext);
3203 
3204  FreeExecutorState(estate);
3205 
3206  /* Mark EPQState idle */
3207  epqstate->estate = NULL;
3208  epqstate->planstate = NULL;
3209  epqstate->origslot = NULL;
3210 }
void ExecEndNode(PlanState *node)
Definition: execProcnode.c:654
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
PlanState * planstate
Definition: execnodes.h:896
void FreeExecutorState(EState *estate)
Definition: execUtils.c:178
MemoryContext es_query_cxt
Definition: execnodes.h:468
TupleTableSlot * origslot
Definition: execnodes.h:897
List * es_tupleTable
Definition: execnodes.h:470
void ExecResetTupleTable(List *tupleTable, bool shouldFree)
Definition: execTuples.c:156
#define NULL
Definition: c.h:229
#define lfirst(lc)
Definition: pg_list.h:106
List * es_subplanstates
Definition: execnodes.h:483
void ExecCleanUpTriggerState(EState *estate)
Definition: execMain.c:1440
EState * estate
Definition: execnodes.h:895
HeapTuple EvalPlanQualFetch ( EState estate,
Relation  relation,
int  lockmode,
LockWaitPolicy  wait_policy,
ItemPointer  tid,
TransactionId  priorXmax 
)

Definition at line 2536 of file execMain.c.

References Assert, buffer, ConditionalXactLockTableWait(), HeapUpdateFailureData::ctid, elog, ereport, errcode(), errmsg(), ERROR, EState::es_output_cid, heap_copytuple(), heap_fetch(), heap_lock_tuple(), HeapTupleHeaderGetCmin(), HeapTupleHeaderGetUpdateXid, HeapTupleHeaderGetXmin, HeapTupleHeaderIsSpeculative, HeapTupleInvisible, HeapTupleMayBeUpdated, HeapTupleSelfUpdated, HeapTupleUpdated, HeapTupleWouldBlock, InitDirtySnapshot, IsolationUsesXactSnapshot, ItemPointerEquals(), LockWaitBlock, LockWaitError, LockWaitSkip, NULL, RelationGetRelationName, ReleaseBuffer(), HeapTupleHeaderData::t_ctid, HeapTupleData::t_data, HeapTupleData::t_self, test(), TransactionIdEquals, TransactionIdIsCurrentTransactionId(), TransactionIdIsValid, XactLockTableWait(), XLTW_FetchUpdated, SnapshotData::xmax, HeapUpdateFailureData::xmax, and SnapshotData::xmin.

Referenced by EvalPlanQual(), and ExecLockRows().

2539 {
2540  HeapTuple copyTuple = NULL;
2541  HeapTupleData tuple;
2542  SnapshotData SnapshotDirty;
2543 
2544  /*
2545  * fetch target tuple
2546  *
2547  * Loop here to deal with updated or busy tuples
2548  */
2549  InitDirtySnapshot(SnapshotDirty);
2550  tuple.t_self = *tid;
2551  for (;;)
2552  {
2553  Buffer buffer;
2554 
2555  if (heap_fetch(relation, &SnapshotDirty, &tuple, &buffer, true, NULL))
2556  {
2557  HTSU_Result test;
2558  HeapUpdateFailureData hufd;
2559 
2560  /*
2561  * If xmin isn't what we're expecting, the slot must have been
2562  * recycled and reused for an unrelated tuple. This implies that
2563  * the latest version of the row was deleted, so we need do
2564  * nothing. (Should be safe to examine xmin without getting
2565  * buffer's content lock. We assume reading a TransactionId to be
2566  * atomic, and Xmin never changes in an existing tuple, except to
2567  * invalid or frozen, and neither of those can match priorXmax.)
2568  */
2570  priorXmax))
2571  {
2572  ReleaseBuffer(buffer);
2573  return NULL;
2574  }
2575 
2576  /* otherwise xmin should not be dirty... */
2577  if (TransactionIdIsValid(SnapshotDirty.xmin))
2578  elog(ERROR, "t_xmin is uncommitted in tuple to be updated");
2579 
2580  /*
2581  * If tuple is being updated by other transaction then we have to
2582  * wait for its commit/abort, or die trying.
2583  */
2584  if (TransactionIdIsValid(SnapshotDirty.xmax))
2585  {
2586  ReleaseBuffer(buffer);
2587  switch (wait_policy)
2588  {
2589  case LockWaitBlock:
2590  XactLockTableWait(SnapshotDirty.xmax,
2591  relation, &tuple.t_self,
2593  break;
2594  case LockWaitSkip:
2595  if (!ConditionalXactLockTableWait(SnapshotDirty.xmax))
2596  return NULL; /* skip instead of waiting */
2597  break;
2598  case LockWaitError:
2599  if (!ConditionalXactLockTableWait(SnapshotDirty.xmax))
2600  ereport(ERROR,
2601  (errcode(ERRCODE_LOCK_NOT_AVAILABLE),
2602  errmsg("could not obtain lock on row in relation \"%s\"",
2603  RelationGetRelationName(relation))));
2604  break;
2605  }
2606  continue; /* loop back to repeat heap_fetch */
2607  }
2608 
2609  /*
2610  * If tuple was inserted by our own transaction, we have to check
2611  * cmin against es_output_cid: cmin >= current CID means our
2612  * command cannot see the tuple, so we should ignore it. Otherwise
2613  * heap_lock_tuple() will throw an error, and so would any later
2614  * attempt to update or delete the tuple. (We need not check cmax
2615  * because HeapTupleSatisfiesDirty will consider a tuple deleted
2616  * by our transaction dead, regardless of cmax.) We just checked
2617  * that priorXmax == xmin, so we can test that variable instead of
2618  * doing HeapTupleHeaderGetXmin again.
2619  */
2620  if (TransactionIdIsCurrentTransactionId(priorXmax) &&
2621  HeapTupleHeaderGetCmin(tuple.t_data) >= estate->es_output_cid)
2622  {
2623  ReleaseBuffer(buffer);
2624  return NULL;
2625  }
2626 
2627  /*
2628  * This is a live tuple, so now try to lock it.
2629  */
2630  test = heap_lock_tuple(relation, &tuple,
2631  estate->es_output_cid,
2632  lockmode, wait_policy,
2633  false, &buffer, &hufd);
2634  /* We now have two pins on the buffer, get rid of one */
2635  ReleaseBuffer(buffer);
2636 
2637  switch (test)
2638  {
2639  case HeapTupleSelfUpdated:
2640 
2641  /*
2642  * The target tuple was already updated or deleted by the
2643  * current command, or by a later command in the current
2644  * transaction. We *must* ignore the tuple in the former
2645  * case, so as to avoid the "Halloween problem" of
2646  * repeated update attempts. In the latter case it might
2647  * be sensible to fetch the updated tuple instead, but
2648  * doing so would require changing heap_update and
2649  * heap_delete to not complain about updating "invisible"
2650  * tuples, which seems pretty scary (heap_lock_tuple will
2651  * not complain, but few callers expect
2652  * HeapTupleInvisible, and we're not one of them). So for
2653  * now, treat the tuple as deleted and do not process.
2654  */
2655  ReleaseBuffer(buffer);
2656  return NULL;
2657 
2658  case HeapTupleMayBeUpdated:
2659  /* successfully locked */
2660  break;
2661 
2662  case HeapTupleUpdated:
2663  ReleaseBuffer(buffer);
2665  ereport(ERROR,
2666  (errcode(ERRCODE_T_R_SERIALIZATION_FAILURE),
2667  errmsg("could not serialize access due to concurrent update")));
2668 
2669  /* Should not encounter speculative tuple on recheck */
2671  if (!ItemPointerEquals(&hufd.ctid, &tuple.t_self))
2672  {
2673  /* it was updated, so look at the updated version */
2674  tuple.t_self = hufd.ctid;
2675  /* updated row should have xmin matching this xmax */
2676  priorXmax = hufd.xmax;
2677  continue;
2678  }
2679  /* tuple was deleted, so give up */
2680  return NULL;
2681 
2682  case HeapTupleWouldBlock:
2683  ReleaseBuffer(buffer);
2684  return NULL;
2685 
2686  case HeapTupleInvisible:
2687  elog(ERROR, "attempted to lock invisible tuple");
2688 
2689  default:
2690  ReleaseBuffer(buffer);
2691  elog(ERROR, "unrecognized heap_lock_tuple status: %u",
2692  test);
2693  return NULL; /* keep compiler quiet */
2694  }
2695 
2696  /*
2697  * We got tuple - now copy it for use by recheck query.
2698  */
2699  copyTuple = heap_copytuple(&tuple);
2700  ReleaseBuffer(buffer);
2701  break;
2702  }
2703 
2704  /*
2705  * If the referenced slot was actually empty, the latest version of
2706  * the row must have been deleted, so we need do nothing.
2707  */
2708  if (tuple.t_data == NULL)
2709  {
2710  ReleaseBuffer(buffer);
2711  return NULL;
2712  }
2713 
2714  /*
2715  * As above, if xmin isn't what we're expecting, do nothing.
2716  */
2718  priorXmax))
2719  {
2720  ReleaseBuffer(buffer);
2721  return NULL;
2722  }
2723 
2724  /*
2725  * If we get here, the tuple was found but failed SnapshotDirty.
2726  * Assuming the xmin is either a committed xact or our own xact (as it
2727  * certainly should be if we're trying to modify the tuple), this must
2728  * mean that the row was updated or deleted by either a committed xact
2729  * or our own xact. If it was deleted, we can ignore it; if it was
2730  * updated then chain up to the next version and repeat the whole
2731  * process.
2732  *
2733  * As above, it should be safe to examine xmax and t_ctid without the
2734  * buffer content lock, because they can't be changing.
2735  */
2736  if (ItemPointerEquals(&tuple.t_self, &tuple.t_data->t_ctid))
2737  {
2738  /* deleted, so forget about it */
2739  ReleaseBuffer(buffer);
2740  return NULL;
2741  }
2742 
2743  /* updated, so look at the updated row */
2744  tuple.t_self = tuple.t_data->t_ctid;
2745  /* updated row should have xmin matching this xmax */
2746  priorXmax = HeapTupleHeaderGetUpdateXid(tuple.t_data);
2747  ReleaseBuffer(buffer);
2748  /* loop back to fetch next in chain */
2749  }
2750 
2751  /*
2752  * Return the copied tuple
2753  */
2754  return copyTuple;
2755 }
#define HeapTupleHeaderGetUpdateXid(tup)
Definition: htup_details.h:359
HeapTuple heap_copytuple(HeapTuple tuple)
Definition: heaptuple.c:608
CommandId es_output_cid
Definition: execnodes.h:438
static void test(void)
#define TransactionIdEquals(id1, id2)
Definition: transam.h:43
bool TransactionIdIsCurrentTransactionId(TransactionId xid)
Definition: xact.c:773
HTSU_Result heap_lock_tuple(Relation relation, HeapTuple tuple, CommandId cid, LockTupleMode mode, LockWaitPolicy wait_policy, bool follow_updates, Buffer *buffer, HeapUpdateFailureData *hufd)
Definition: heapam.c:4540
CommandId HeapTupleHeaderGetCmin(HeapTupleHeader tup)
Definition: combocid.c:105
bool heap_fetch(Relation relation, Snapshot snapshot, HeapTuple tuple, Buffer *userbuf, bool keep_buf, Relation stats_relation)
Definition: heapam.c:1862
#define IsolationUsesXactSnapshot()
Definition: xact.h:43
#define HeapTupleHeaderIsSpeculative(tup)
Definition: htup_details.h:423
int errcode(int sqlerrcode)
Definition: elog.c:575
void ReleaseBuffer(Buffer buffer)
Definition: bufmgr.c:3309
bool ConditionalXactLockTableWait(TransactionId xid)
Definition: lmgr.c:607
HeapTupleHeader t_data
Definition: htup.h:67
#define ERROR
Definition: elog.h:43
#define InitDirtySnapshot(snapshotdata)
Definition: tqual.h:100
ItemPointerData t_ctid
Definition: htup_details.h:150
ItemPointerData t_self
Definition: htup.h:65
HTSU_Result
Definition: snapshot.h:119
#define RelationGetRelationName(relation)
Definition: rel.h:436
TransactionId xmax
Definition: snapshot.h:67
TransactionId xmin
Definition: snapshot.h:66
#define ereport(elevel, rest)
Definition: elog.h:122
TransactionId xmax
Definition: heapam.h:71
void XactLockTableWait(TransactionId xid, Relation rel, ItemPointer ctid, XLTW_Oper oper)
Definition: lmgr.c:554
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
WalTimeSample buffer[LAG_TRACKER_BUFFER_SIZE]
Definition: walsender.c:214
#define HeapTupleHeaderGetXmin(tup)
Definition: htup_details.h:307
bool ItemPointerEquals(ItemPointer pointer1, ItemPointer pointer2)
Definition: itemptr.c:29
int errmsg(const char *fmt,...)
Definition: elog.c:797
ItemPointerData ctid
Definition: heapam.h:70
#define elog
Definition: elog.h:219
#define TransactionIdIsValid(xid)
Definition: transam.h:41
int Buffer
Definition: buf.h:23
void EvalPlanQualFetchRowMarks ( EPQState epqstate)

Definition at line 2835 of file execMain.c.

References EPQState::arowMarks, Assert, buffer, ExecAuxRowMark::ctidAttNo, DatumGetHeapTupleHeader, DatumGetObjectId, DatumGetPointer, elog, ereport, errcode(), errmsg(), ERROR, EPQState::estate, EvalPlanQualSetTuple(), ExecGetJunkAttribute(), GetFdwRoutineForRelation(), heap_copytuple(), heap_fetch(), HeapTupleHeaderGetDatumLength, lfirst, ExecRowMark::markType, NULL, OidIsValid, EPQState::origslot, ExecRowMark::prti, RelationData::rd_rel, FdwRoutine::RefetchForeignRow, ExecRowMark::relation, RelationGetRelationName, ReleaseBuffer(), ExecRowMark::relid, RELKIND_FOREIGN_TABLE, ROW_MARK_COPY, ROW_MARK_REFERENCE, ExecAuxRowMark::rowmark, RowMarkRequiresRowShareLock, ExecRowMark::rti, SnapshotAny, HeapTupleHeaderData::t_ctid, HeapTupleData::t_data, HeapTupleData::t_len, HeapTupleData::t_self, HeapTupleData::t_tableOid, ExecAuxRowMark::toidAttNo, and ExecAuxRowMark::wholeAttNo.

Referenced by EvalPlanQual(), and ExecLockRows().

2836 {
2837  ListCell *l;
2838 
2839  Assert(epqstate->origslot != NULL);
2840 
2841  foreach(l, epqstate->arowMarks)
2842  {
2843  ExecAuxRowMark *aerm = (ExecAuxRowMark *) lfirst(l);
2844  ExecRowMark *erm = aerm->rowmark;
2845  Datum datum;
2846  bool isNull;
2847  HeapTupleData tuple;
2848 
2850  elog(ERROR, "EvalPlanQual doesn't support locking rowmarks");
2851 
2852  /* clear any leftover test tuple for this rel */
2853  EvalPlanQualSetTuple(epqstate, erm->rti, NULL);
2854 
2855  /* if child rel, must check whether it produced this row */
2856  if (erm->rti != erm->prti)
2857  {
2858  Oid tableoid;
2859 
2860  datum = ExecGetJunkAttribute(epqstate->origslot,
2861  aerm->toidAttNo,
2862  &isNull);
2863  /* non-locked rels could be on the inside of outer joins */
2864  if (isNull)
2865  continue;
2866  tableoid = DatumGetObjectId(datum);
2867 
2868  Assert(OidIsValid(erm->relid));
2869  if (tableoid != erm->relid)
2870  {
2871  /* this child is inactive right now */
2872  continue;
2873  }
2874  }
2875 
2876  if (erm->markType == ROW_MARK_REFERENCE)
2877  {
2878  HeapTuple copyTuple;
2879 
2880  Assert(erm->relation != NULL);
2881 
2882  /* fetch the tuple's ctid */
2883  datum = ExecGetJunkAttribute(epqstate->origslot,
2884  aerm->ctidAttNo,
2885  &isNull);
2886  /* non-locked rels could be on the inside of outer joins */
2887  if (isNull)
2888  continue;
2889 
2890  /* fetch requests on foreign tables must be passed to their FDW */
2891  if (erm->relation->rd_rel->relkind == RELKIND_FOREIGN_TABLE)
2892  {
2893  FdwRoutine *fdwroutine;
2894  bool updated = false;
2895 
2896  fdwroutine = GetFdwRoutineForRelation(erm->relation, false);
2897  /* this should have been checked already, but let's be safe */
2898  if (fdwroutine->RefetchForeignRow == NULL)
2899  ereport(ERROR,
2900  (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
2901  errmsg("cannot lock rows in foreign table \"%s\"",
2903  copyTuple = fdwroutine->RefetchForeignRow(epqstate->estate,
2904  erm,
2905  datum,
2906  &updated);
2907  if (copyTuple == NULL)
2908  elog(ERROR, "failed to fetch tuple for EvalPlanQual recheck");
2909 
2910  /*
2911  * Ideally we'd insist on updated == false here, but that
2912  * assumes that FDWs can track that exactly, which they might
2913  * not be able to. So just ignore the flag.
2914  */
2915  }
2916  else
2917  {
2918  /* ordinary table, fetch the tuple */
2919  Buffer buffer;
2920 
2921  tuple.t_self = *((ItemPointer) DatumGetPointer(datum));
2922  if (!heap_fetch(erm->relation, SnapshotAny, &tuple, &buffer,
2923  false, NULL))
2924  elog(ERROR, "failed to fetch tuple for EvalPlanQual recheck");
2925 
2926  /* successful, copy tuple */
2927  copyTuple = heap_copytuple(&tuple);
2928  ReleaseBuffer(buffer);
2929  }
2930 
2931  /* store tuple */
2932  EvalPlanQualSetTuple(epqstate, erm->rti, copyTuple);
2933  }
2934  else
2935  {
2936  HeapTupleHeader td;
2937 
2938  Assert(erm->markType == ROW_MARK_COPY);
2939 
2940  /* fetch the whole-row Var for the relation */
2941  datum = ExecGetJunkAttribute(epqstate->origslot,
2942  aerm->wholeAttNo,
2943  &isNull);
2944  /* non-locked rels could be on the inside of outer joins */
2945  if (isNull)
2946  continue;
2947  td = DatumGetHeapTupleHeader(datum);
2948 
2949  /* build a temporary HeapTuple control structure */
2951  tuple.t_data = td;
2952  /* relation might be a foreign table, if so provide tableoid */
2953  tuple.t_tableOid = erm->relid;
2954  /* also copy t_ctid in case there's valid data there */
2955  tuple.t_self = td->t_ctid;
2956 
2957  /* copy and store tuple */
2958  EvalPlanQualSetTuple(epqstate, erm->rti,
2959  heap_copytuple(&tuple));
2960  }
2961  }
2962 }
HeapTuple heap_copytuple(HeapTuple tuple)
Definition: heaptuple.c:608
void EvalPlanQualSetTuple(EPQState *epqstate, Index rti, HeapTuple tuple)
Definition: execMain.c:2800
Relation relation
Definition: execnodes.h:531
bool heap_fetch(Relation relation, Snapshot snapshot, HeapTuple tuple, Buffer *userbuf, bool keep_buf, Relation stats_relation)
Definition: heapam.c:1862
#define DatumGetObjectId(X)
Definition: postgres.h:506
int errcode(int sqlerrcode)
Definition: elog.c:575
void ReleaseBuffer(Buffer buffer)
Definition: bufmgr.c:3309
Form_pg_class rd_rel
Definition: rel.h:114
unsigned int Oid
Definition: postgres_ext.h:31
#define OidIsValid(objectId)
Definition: c.h:538
#define DatumGetHeapTupleHeader(X)
Definition: fmgr.h:259
#define RowMarkRequiresRowShareLock(marktype)
Definition: plannodes.h:960
ItemPointerData * ItemPointer
Definition: itemptr.h:49
ExecRowMark * rowmark
Definition: execnodes.h:558
HeapTupleHeader t_data
Definition: htup.h:67
#define ERROR
Definition: elog.h:43
ItemPointerData t_ctid
Definition: htup_details.h:150
ItemPointerData t_self
Definition: htup.h:65
List * arowMarks
Definition: execnodes.h:899
uint32 t_len
Definition: htup.h:64
Index rti
Definition: execnodes.h:533
AttrNumber wholeAttNo
Definition: execnodes.h:561
Index prti
Definition: execnodes.h:534
#define RelationGetRelationName(relation)
Definition: rel.h:436
Oid t_tableOid
Definition: htup.h:66
#define RELKIND_FOREIGN_TABLE
Definition: pg_class.h:167
TupleTableSlot * origslot
Definition: execnodes.h:897
#define ereport(elevel, rest)
Definition: elog.h:122
uintptr_t Datum
Definition: postgres.h:372
#define SnapshotAny
Definition: tqual.h:28
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
#define lfirst(lc)
Definition: pg_list.h:106
WalTimeSample buffer[LAG_TRACKER_BUFFER_SIZE]
Definition: walsender.c:214
RowMarkType markType
Definition: execnodes.h:536
AttrNumber toidAttNo
Definition: execnodes.h:560
#define DatumGetPointer(X)
Definition: postgres.h:555
int errmsg(const char *fmt,...)
Definition: elog.c:797
FdwRoutine * GetFdwRoutineForRelation(Relation relation, bool makecopy)
Definition: foreign.c:395
Datum ExecGetJunkAttribute(TupleTableSlot *slot, AttrNumber attno, bool *isNull)
Definition: execJunk.c:248
#define elog
Definition: elog.h:219
EState * estate
Definition: execnodes.h:895
int Buffer
Definition: buf.h:23
AttrNumber ctidAttNo
Definition: execnodes.h:559
RefetchForeignRow_function RefetchForeignRow
Definition: fdwapi.h:209
#define HeapTupleHeaderGetDatumLength(tup)
Definition: htup_details.h:439
HeapTuple EvalPlanQualGetTuple ( EPQState epqstate,
Index  rti 
)

Definition at line 2820 of file execMain.c.

References Assert, EState::es_epqTuple, and EPQState::estate.

2821 {
2822  EState *estate = epqstate->estate;
2823 
2824  Assert(rti > 0);
2825 
2826  return estate->es_epqTuple[rti - 1];
2827 }
HeapTuple * es_epqTuple
Definition: execnodes.h:503
#define Assert(condition)
Definition: c.h:675
EState * estate
Definition: execnodes.h:895
void EvalPlanQualInit ( EPQState epqstate,
EState estate,
Plan subplan,
List auxrowmarks,
int  epqParam 
)

Definition at line 2765 of file execMain.c.

References EPQState::arowMarks, EPQState::epqParam, EPQState::estate, NULL, EPQState::origslot, EPQState::plan, and EPQState::planstate.

Referenced by apply_handle_delete(), apply_handle_update(), ExecInitLockRows(), and ExecInitModifyTable().

2767 {
2768  /* Mark the EPQ state inactive */
2769  epqstate->estate = NULL;
2770  epqstate->planstate = NULL;
2771  epqstate->origslot = NULL;
2772  /* ... and remember data that EvalPlanQualBegin will need */
2773  epqstate->plan = subplan;
2774  epqstate->arowMarks = auxrowmarks;
2775  epqstate->epqParam = epqParam;
2776 }
PlanState * planstate
Definition: execnodes.h:896
List * arowMarks
Definition: execnodes.h:899
TupleTableSlot * origslot
Definition: execnodes.h:897
Plan * plan
Definition: execnodes.h:898
#define NULL
Definition: c.h:229
int epqParam
Definition: execnodes.h:900
EState * estate
Definition: execnodes.h:895
TupleTableSlot* EvalPlanQualNext ( EPQState epqstate)

Definition at line 2970 of file execMain.c.

References EState::es_query_cxt, EPQState::estate, ExecProcNode(), MemoryContextSwitchTo(), and EPQState::planstate.

Referenced by EvalPlanQual(), and ExecLockRows().

2971 {
2972  MemoryContext oldcontext;
2973  TupleTableSlot *slot;
2974 
2975  oldcontext = MemoryContextSwitchTo(epqstate->estate->es_query_cxt);
2976  slot = ExecProcNode(epqstate->planstate);
2977  MemoryContextSwitchTo(oldcontext);
2978 
2979  return slot;
2980 }
TupleTableSlot * ExecProcNode(PlanState *node)
Definition: execProcnode.c:398
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
PlanState * planstate
Definition: execnodes.h:896
MemoryContext es_query_cxt
Definition: execnodes.h:468
EState * estate
Definition: execnodes.h:895
void EvalPlanQualSetPlan ( EPQState epqstate,
Plan subplan,
List auxrowmarks 
)

Definition at line 2784 of file execMain.c.

References EPQState::arowMarks, EvalPlanQualEnd(), and EPQState::plan.

Referenced by ExecInitModifyTable(), and ExecModifyTable().

2785 {
2786  /* If we have a live EPQ query, shut it down */
2787  EvalPlanQualEnd(epqstate);
2788  /* And set/change the plan pointer */
2789  epqstate->plan = subplan;
2790  /* The rowmarks depend on the plan, too */
2791  epqstate->arowMarks = auxrowmarks;
2792 }
void EvalPlanQualEnd(EPQState *epqstate)
Definition: execMain.c:3176
List * arowMarks
Definition: execnodes.h:899
Plan * plan
Definition: execnodes.h:898
void EvalPlanQualSetTuple ( EPQState epqstate,
Index  rti,
HeapTuple  tuple 
)

Definition at line 2800 of file execMain.c.

References Assert, EState::es_epqTuple, EState::es_epqTupleSet, EPQState::estate, heap_freetuple(), and NULL.

Referenced by EvalPlanQual(), EvalPlanQualFetchRowMarks(), and ExecLockRows().

2801 {
2802  EState *estate = epqstate->estate;
2803 
2804  Assert(rti > 0);
2805 
2806  /*
2807  * free old test tuple, if any, and store new tuple where relation's scan
2808  * node will see it
2809  */
2810  if (estate->es_epqTuple[rti - 1] != NULL)
2811  heap_freetuple(estate->es_epqTuple[rti - 1]);
2812  estate->es_epqTuple[rti - 1] = tuple;
2813  estate->es_epqTupleSet[rti - 1] = true;
2814 }
HeapTuple * es_epqTuple
Definition: execnodes.h:503
void heap_freetuple(HeapTuple htup)
Definition: heaptuple.c:1372
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
bool * es_epqTupleSet
Definition: execnodes.h:504
EState * estate
Definition: execnodes.h:895
void ExecAssignProjectionInfo ( PlanState planstate,
TupleDesc  inputDesc 
)

Definition at line 487 of file execUtils.c.

References ExecBuildProjectionInfo(), PlanState::plan, PlanState::ps_ExprContext, PlanState::ps_ProjInfo, PlanState::ps_ResultTupleSlot, and Plan::targetlist.

Referenced by ExecAssignScanProjectionInfoWithVarno(), ExecInitAgg(), ExecInitGather(), ExecInitGatherMerge(), ExecInitGroup(), ExecInitHashJoin(), ExecInitMergeJoin(), ExecInitNestLoop(), ExecInitResult(), and ExecInitWindowAgg().

489 {
490  planstate->ps_ProjInfo =
492  planstate->ps_ExprContext,
493  planstate->ps_ResultTupleSlot,
494  planstate,
495  inputDesc);
496 }
ProjectionInfo * ps_ProjInfo
Definition: execnodes.h:863
ExprContext * ps_ExprContext
Definition: execnodes.h:862
TupleTableSlot * ps_ResultTupleSlot
Definition: execnodes.h:861
Plan * plan
Definition: execnodes.h:832
List * targetlist
Definition: plannodes.h:144
ProjectionInfo * ExecBuildProjectionInfo(List *targetList, ExprContext *econtext, TupleTableSlot *slot, PlanState *parent, TupleDesc inputDesc)
Definition: execExpr.c:301
void ExecAssignResultType ( PlanState planstate,
TupleDesc  tupDesc 
)

Definition at line 428 of file execUtils.c.

References ExecSetSlotDescriptor(), and PlanState::ps_ResultTupleSlot.

Referenced by ExecAssignResultTypeFromTL(), and ExecInitModifyTable().

429 {
430  TupleTableSlot *slot = planstate->ps_ResultTupleSlot;
431 
432  ExecSetSlotDescriptor(slot, tupDesc);
433 }
TupleTableSlot * ps_ResultTupleSlot
Definition: execnodes.h:861
void ExecSetSlotDescriptor(TupleTableSlot *slot, TupleDesc tupdesc)
Definition: execTuples.c:247
void ExecAssignResultTypeFromTL ( PlanState planstate)

Definition at line 440 of file execUtils.c.

References ExecAssignResultType(), ExecContextForcesOids(), ExecTypeFromTL(), PlanState::plan, and Plan::targetlist.

Referenced by ExecInitAgg(), ExecInitAppend(), ExecInitBitmapHeapScan(), ExecInitCteScan(), ExecInitCustomScan(), ExecInitForeignScan(), ExecInitFunctionScan(), ExecInitGather(), ExecInitGatherMerge(), ExecInitGroup(), ExecInitHash(), ExecInitHashJoin(), ExecInitIndexOnlyScan(), ExecInitIndexScan(), ExecInitLimit(), ExecInitLockRows(), ExecInitMaterial(), ExecInitMergeAppend(), ExecInitMergeJoin(), ExecInitNamedTuplestoreScan(), ExecInitNestLoop(), ExecInitProjectSet(), ExecInitRecursiveUnion(), ExecInitResult(), ExecInitSampleScan(), ExecInitSeqScan(), ExecInitSetOp(), ExecInitSort(), ExecInitSubqueryScan(), ExecInitTableFuncScan(), ExecInitTidScan(), ExecInitUnique(), ExecInitValuesScan(), ExecInitWindowAgg(), and ExecInitWorkTableScan().

441 {
442  bool hasoid;
443  TupleDesc tupDesc;
444 
445  if (ExecContextForcesOids(planstate, &hasoid))
446  {
447  /* context forces OID choice; hasoid is now set correctly */
448  }
449  else
450  {
451  /* given free choice, don't leave space for OIDs in result tuples */
452  hasoid = false;
453  }
454 
455  /*
456  * ExecTypeFromTL needs the parse-time representation of the tlist, not a
457  * list of ExprStates. This is good because some plan nodes don't bother
458  * to set up planstate->targetlist ...
459  */
460  tupDesc = ExecTypeFromTL(planstate->plan->targetlist, hasoid);
461  ExecAssignResultType(planstate, tupDesc);
462 }
void ExecAssignResultType(PlanState *planstate, TupleDesc tupDesc)
Definition: execUtils.c:428
TupleDesc ExecTypeFromTL(List *targetList, bool hasoid)
Definition: execTuples.c:888
Plan * plan
Definition: execnodes.h:832
List * targetlist
Definition: plannodes.h:144
bool ExecContextForcesOids(PlanState *planstate, bool *hasoids)
Definition: execMain.c:1487
void ExecAssignScanProjectionInfo ( ScanState node)
void ExecAssignScanProjectionInfoWithVarno ( ScanState node,
Index  varno 
)

Definition at line 247 of file execScan.c.

References ExecAssignProjectionInfo(), NULL, Scan::plan, PlanState::plan, ScanState::ps, PlanState::ps_ProjInfo, ScanState::ss_ScanTupleSlot, Plan::targetlist, tlist_matches_tupdesc(), and TupleTableSlot::tts_tupleDescriptor.

Referenced by ExecAssignScanProjectionInfo(), ExecInitCustomScan(), ExecInitForeignScan(), and ExecInitIndexOnlyScan().

248 {
249  Scan *scan = (Scan *) node->ps.plan;
250 
251  if (tlist_matches_tupdesc(&node->ps,
252  scan->plan.targetlist,
253  varno,
255  node->ps.ps_ProjInfo = NULL;
256  else
259 }
Plan plan
Definition: plannodes.h:328
ProjectionInfo * ps_ProjInfo
Definition: execnodes.h:863
TupleTableSlot * ss_ScanTupleSlot
Definition: execnodes.h:1082
PlanState ps
Definition: execnodes.h:1079
void ExecAssignProjectionInfo(PlanState *planstate, TupleDesc inputDesc)
Definition: execUtils.c:487
TupleDesc tts_tupleDescriptor
Definition: tuptable.h:121
static bool tlist_matches_tupdesc(PlanState *ps, List *tlist, Index varno, TupleDesc tupdesc)
Definition: execScan.c:262
Plan * plan
Definition: execnodes.h:832
#define NULL
Definition: c.h:229
List * targetlist
Definition: plannodes.h:144
void ExecAssignScanTypeFromOuterPlan ( ScanState scanstate)

Definition at line 552 of file execUtils.c.

References ExecAssignScanType(), ExecGetResultType(), outerPlan, and outerPlanState.

Referenced by ExecInitAgg(), ExecInitGroup(), ExecInitMaterial(), ExecInitSort(), and ExecInitWindowAgg().

553 {
555  TupleDesc tupDesc;
556 
557  outerPlan = outerPlanState(scanstate);
558  tupDesc = ExecGetResultType(outerPlan);
559 
560  ExecAssignScanType(scanstate, tupDesc);
561 }
#define outerPlanState(node)
Definition: execnodes.h:874
#define outerPlan(node)
Definition: plannodes.h:174
TupleDesc ExecGetResultType(PlanState *planstate)
Definition: execUtils.c:469
void ExecAssignScanType(ScanState *scanstate, TupleDesc tupDesc)
Definition: execUtils.c:540
ExecAuxRowMark* ExecBuildAuxRowMark ( ExecRowMark erm,
List targetlist 
)

Definition at line 2378 of file execMain.c.

References AttributeNumberIsValid, ExecAuxRowMark::ctidAttNo, elog, ERROR, ExecFindJunkAttributeInTlist(), ExecRowMark::markType, palloc0(), ExecRowMark::prti, ROW_MARK_COPY, ExecAuxRowMark::rowmark, ExecRowMark::rowmarkId, ExecRowMark::rti, snprintf(), ExecAuxRowMark::toidAttNo, and ExecAuxRowMark::wholeAttNo.

Referenced by ExecInitLockRows(), and ExecInitModifyTable().

2379 {
2380  ExecAuxRowMark *aerm = (ExecAuxRowMark *) palloc0(sizeof(ExecAuxRowMark));
2381  char resname[32];
2382 
2383  aerm->rowmark = erm;
2384 
2385  /* Look up the resjunk columns associated with this rowmark */
2386  if (erm->markType != ROW_MARK_COPY)
2387  {
2388  /* need ctid for all methods other than COPY */
2389  snprintf(resname, sizeof(resname), "ctid%u", erm->rowmarkId);
2390  aerm->ctidAttNo = ExecFindJunkAttributeInTlist(targetlist,
2391  resname);
2392  if (!AttributeNumberIsValid(aerm->ctidAttNo))
2393  elog(ERROR, "could not find junk %s column", resname);
2394  }
2395  else
2396  {
2397  /* need wholerow if COPY */
2398  snprintf(resname, sizeof(resname), "wholerow%u", erm->rowmarkId);
2399  aerm->wholeAttNo = ExecFindJunkAttributeInTlist(targetlist,
2400  resname);
2401  if (!AttributeNumberIsValid(aerm->wholeAttNo))
2402  elog(ERROR, "could not find junk %s column", resname);
2403  }
2404 
2405  /* if child rel, need tableoid */
2406  if (erm->rti != erm->prti)
2407  {
2408  snprintf(resname, sizeof(resname), "tableoid%u", erm->rowmarkId);
2409  aerm->toidAttNo = ExecFindJunkAttributeInTlist(targetlist,
2410  resname);
2411  if (!AttributeNumberIsValid(aerm->toidAttNo))
2412  elog(ERROR, "could not find junk %s column", resname);
2413  }
2414 
2415  return aerm;
2416 }
AttrNumber ExecFindJunkAttributeInTlist(List *targetlist, const char *attrName)
Definition: execJunk.c:221
int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3
ExecRowMark * rowmark
Definition: execnodes.h:558
#define ERROR
Definition: elog.h:43
Index rti
Definition: execnodes.h:533
AttrNumber wholeAttNo
Definition: execnodes.h:561
Index prti
Definition: execnodes.h:534
Index rowmarkId
Definition: execnodes.h:535
#define AttributeNumberIsValid(attributeNumber)
Definition: attnum.h:34
void * palloc0(Size size)
Definition: mcxt.c:878
RowMarkType markType
Definition: execnodes.h:536
AttrNumber toidAttNo
Definition: execnodes.h:560
#define elog
Definition: elog.h:219
AttrNumber ctidAttNo
Definition: execnodes.h:559
ProjectionInfo* ExecBuildProjectionInfo ( List targetList,
ExprContext econtext,
TupleTableSlot slot,
PlanState parent,
TupleDesc  inputDesc 
)

Definition at line 301 of file execExpr.c.

References ExprEvalStep::assign_tmp, ExprEvalStep::assign_var, tupleDesc::attrs, ExprEvalStep::d, EEOP_ASSIGN_INNER_VAR, EEOP_ASSIGN_OUTER_VAR, EEOP_ASSIGN_SCAN_VAR, EEOP_ASSIGN_TMP, EEOP_ASSIGN_TMP_MAKE_RO, EEOP_DONE, ExecInitExprRec(), ExecInitExprSlots(), ExecReadyExpr(), ExprState::expr, TargetEntry::expr, ExprEvalPushStep(), exprType(), get_typlen(), INNER_VAR, IsA, lfirst_node, makeNode, NULL, ExprEvalStep::opcode, OUTER_VAR, ProjectionInfo::pi_exprContext, ProjectionInfo::pi_state, TargetEntry::resno, ExprState::resnull, ExprState::resultslot, ExprState::resvalue, T_ExprState, ExprState::tag, Node::type, Var::varattno, Var::varno, and Var::vartype.

Referenced by ExecAssignProjectionInfo(), ExecInitAgg(), ExecInitModifyTable(), and ExecInitSubPlan().

306 {
308  ExprState *state;
309  ExprEvalStep scratch;
310  ListCell *lc;
311 
312  projInfo->pi_exprContext = econtext;
313  /* We embed ExprState into ProjectionInfo instead of doing extra palloc */
314  projInfo->pi_state.tag.type = T_ExprState;
315  state = &projInfo->pi_state;
316  state->expr = (Expr *) targetList;
317  state->resultslot = slot;
318 
319  /* Insert EEOP_*_FETCHSOME steps as needed */
320  ExecInitExprSlots(state, (Node *) targetList);
321 
322  /* Now compile each tlist column */
323  foreach(lc, targetList)
324  {
325  TargetEntry *tle = lfirst_node(TargetEntry, lc);
326  Var *variable = NULL;
327  AttrNumber attnum = 0;
328  bool isSafeVar = false;
329 
330  /*
331  * If tlist expression is a safe non-system Var, use the fast-path
332  * ASSIGN_*_VAR opcodes. "Safe" means that we don't need to apply
333  * CheckVarSlotCompatibility() during plan startup. If a source slot
334  * was provided, we make the equivalent tests here; if a slot was not
335  * provided, we assume that no check is needed because we're dealing
336  * with a non-relation-scan-level expression.
337  */
338  if (tle->expr != NULL &&
339  IsA(tle->expr, Var) &&
340  ((Var *) tle->expr)->varattno > 0)
341  {
342  /* Non-system Var, but how safe is it? */
343  variable = (Var *) tle->expr;
344  attnum = variable->varattno;
345 
346  if (inputDesc == NULL)
347  isSafeVar = true; /* can't check, just assume OK */
348  else if (attnum <= inputDesc->natts)
349  {
350  Form_pg_attribute attr = inputDesc->attrs[attnum - 1];
351 
352  /*
353  * If user attribute is dropped or has a type mismatch, don't
354  * use ASSIGN_*_VAR. Instead let the normal expression
355  * machinery handle it (which'll possibly error out).
356  */
357  if (!attr->attisdropped && variable->vartype == attr->atttypid)
358  {
359  isSafeVar = true;
360  }
361  }
362  }
363 
364  if (isSafeVar)
365  {
366  /* Fast-path: just generate an EEOP_ASSIGN_*_VAR step */
367  switch (variable->varno)
368  {
369  case INNER_VAR:
370  /* get the tuple from the inner node */
371  scratch.opcode = EEOP_ASSIGN_INNER_VAR;
372  break;
373 
374  case OUTER_VAR:
375  /* get the tuple from the outer node */
376  scratch.opcode = EEOP_ASSIGN_OUTER_VAR;
377  break;
378 
379  /* INDEX_VAR is handled by default case */
380 
381  default:
382  /* get the tuple from the relation being scanned */
383  scratch.opcode = EEOP_ASSIGN_SCAN_VAR;
384  break;
385  }
386 
387  scratch.d.assign_var.attnum = attnum - 1;
388  scratch.d.assign_var.resultnum = tle->resno - 1;
389  ExprEvalPushStep(state, &scratch);
390  }
391  else
392  {
393  /*
394  * Otherwise, compile the column expression normally.
395  *
396  * We can't tell the expression to evaluate directly into the
397  * result slot, as the result slot (and the exprstate for that
398  * matter) can change between executions. We instead evaluate
399  * into the ExprState's resvalue/resnull and then move.
400  */
401  ExecInitExprRec(tle->expr, parent, state,
402  &state->resvalue, &state->resnull);
403 
404  /*
405  * Column might be referenced multiple times in upper nodes, so
406  * force value to R/O - but only if it could be an expanded datum.
407  */
408  if (get_typlen(exprType((Node *) tle->expr)) == -1)
410  else
411  scratch.opcode = EEOP_ASSIGN_TMP;
412  scratch.d.assign_tmp.resultnum = tle->resno - 1;
413  ExprEvalPushStep(state, &scratch);
414  }
415  }
416 
417  scratch.opcode = EEOP_DONE;
418  ExprEvalPushStep(state, &scratch);
419 
420  ExecReadyExpr(state);
421 
422  return projInfo;
423 }
Node tag
Definition: execnodes.h:55
#define IsA(nodeptr, _type_)
Definition: nodes.h:560
Form_pg_attribute * attrs
Definition: tupdesc.h:74
Definition: nodes.h:509
AttrNumber varattno
Definition: primnodes.h:168
TupleTableSlot * resultslot
Definition: execnodes.h:69
union ExprEvalStep::@52 d
Definition: primnodes.h:163
bool resnull
Definition: execnodes.h:63
Expr * expr
Definition: execnodes.h:83
Oid vartype
Definition: primnodes.h:170
static void ExecInitExprSlots(ExprState *state, Node *node)
Definition: execExpr.c:2172
#define lfirst_node(type, lc)
Definition: pg_list.h:109
NodeTag type
Definition: nodes.h:511
AttrNumber resno
Definition: primnodes.h:1369
FormData_pg_attribute * Form_pg_attribute
Definition: pg_attribute.h:187
Index varno
Definition: primnodes.h:166
static void ExecReadyExpr(ExprState *state)
Definition: execExpr.c:574
struct ExprEvalStep::@52::@56 assign_var
#define INNER_VAR
Definition: primnodes.h:153
#define makeNode(_type_)
Definition: nodes.h:557
#define NULL
Definition: c.h:229
Definition: regguts.h:298
intptr_t opcode
Definition: execExpr.h:227
Expr * expr
Definition: primnodes.h:1368
Oid exprType(const Node *expr)
Definition: nodeFuncs.c:42
static void ExprEvalPushStep(ExprState *es, const ExprEvalStep *s)
Definition: execExpr.c:2043
int16 get_typlen(Oid typid)
Definition: lsyscache.c:1947
ExprState pi_state
Definition: execnodes.h:296
static void ExecInitExprRec(Expr *node, PlanState *parent, ExprState *state, Datum *resv, bool *resnull)
Definition: execExpr.c:589
ExprContext * pi_exprContext
Definition: execnodes.h:298
Datum resvalue
Definition: execnodes.h:64
int16 AttrNumber
Definition: attnum.h:21
#define OUTER_VAR
Definition: primnodes.h:154
struct ExprEvalStep::@52::@57 assign_tmp
bool ExecCheck ( ExprState state,
ExprContext context 
)

Definition at line 544 of file execExpr.c.

References Assert, DatumGetBool, EEO_FLAG_IS_QUAL, ExecEvalExprSwitchContext(), ExprState::flags, and NULL.

Referenced by ATRewriteTable(), domain_check_input(), ExecPartitionCheck(), ExecRelCheck(), and validateCheckConstraint().

545 {
546  Datum ret;
547  bool isnull;
548 
549  /* short-circuit (here and in ExecInitCheck) for empty restriction list */
550  if (state == NULL)
551  return true;
552 
553  /* verify that expression was not compiled using ExecInitQual */
554  Assert(!(state->flags & EEO_FLAG_IS_QUAL));
555 
556  ret = ExecEvalExprSwitchContext(state, econtext, &isnull);
557 
558  if (isnull)
559  return true;
560 
561  return DatumGetBool(ret);
562 }
static Datum ExecEvalExprSwitchContext(ExprState *state, ExprContext *econtext, bool *isNull)
Definition: executor.h:282
#define EEO_FLAG_IS_QUAL
Definition: execnodes.h:51
#define DatumGetBool(X)
Definition: postgres.h:399
uintptr_t Datum
Definition: postgres.h:372
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
uint8 flags
Definition: execnodes.h:57
bool ExecCheckIndexConstraints ( TupleTableSlot slot,
EState estate,
ItemPointer  conflictTid,
List arbiterIndexes 
)

Definition at line 475 of file execIndexing.c.

References CEOUC_WAIT, check_exclusion_or_unique_constraint(), ExprContext::ecxt_scantuple, elog, ereport, errcode(), errmsg(), ERROR, errtableconstraint(), EState::es_result_relation_info, ExecPrepareQual(), ExecQual(), FormIndexDatum(), GetPerTupleExprContext, i, IndexInfo::ii_ExclusionOps, IndexInfo::ii_Predicate, IndexInfo::ii_PredicateState, IndexInfo::ii_ReadyForInserts, IndexInfo::ii_Unique, INDEX_MAX_KEYS, ItemPointerSetInvalid, list_member_oid(), NIL, NULL, RelationData::rd_index, RelationGetRelationName, ResultRelInfo::ri_IndexRelationDescs, ResultRelInfo::ri_IndexRelationInfo, ResultRelInfo::ri_NumIndices, ResultRelInfo::ri_RelationDesc, and values.

Referenced by ExecInsert().

478 {
479  ResultRelInfo *resultRelInfo;
480  int i;
481  int numIndices;
482  RelationPtr relationDescs;
483  Relation heapRelation;
484  IndexInfo **indexInfoArray;
485  ExprContext *econtext;
487  bool isnull[INDEX_MAX_KEYS];
488  ItemPointerData invalidItemPtr;
489  bool checkedIndex = false;
490 
491  ItemPointerSetInvalid(conflictTid);
492  ItemPointerSetInvalid(&invalidItemPtr);
493 
494  /*
495  * Get information from the result relation info structure.
496  */
497  resultRelInfo = estate->es_result_relation_info;
498  numIndices = resultRelInfo->ri_NumIndices;
499  relationDescs = resultRelInfo->ri_IndexRelationDescs;
500  indexInfoArray = resultRelInfo->ri_IndexRelationInfo;
501  heapRelation = resultRelInfo->ri_RelationDesc;
502 
503  /*
504  * We will use the EState's per-tuple context for evaluating predicates
505  * and index expressions (creating it if it's not already there).
506  */
507  econtext = GetPerTupleExprContext(estate);
508 
509  /* Arrange for econtext's scan tuple to be the tuple under test */
510  econtext->ecxt_scantuple = slot;
511 
512  /*
513  * For each index, form index tuple and check if it satisfies the
514  * constraint.
515  */
516  for (i = 0; i < numIndices; i++)
517  {
518  Relation indexRelation = relationDescs[i];
519  IndexInfo *indexInfo;
520  bool satisfiesConstraint;
521 
522  if (indexRelation == NULL)
523  continue;
524 
525  indexInfo = indexInfoArray[i];
526 
527  if (!indexInfo->ii_Unique && !indexInfo->ii_ExclusionOps)
528  continue;
529 
530  /* If the index is marked as read-only, ignore it */
531  if (!indexInfo->ii_ReadyForInserts)
532  continue;
533 
534  /* When specific arbiter indexes requested, only examine them */
535  if (arbiterIndexes != NIL &&
536  !list_member_oid(arbiterIndexes,
537  indexRelation->rd_index->indexrelid))
538  continue;
539 
540  if (!indexRelation->rd_index->indimmediate)
541  ereport(ERROR,
542  (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
543  errmsg("ON CONFLICT does not support deferrable unique constraints/exclusion constraints as arbiters"),
544  errtableconstraint(heapRelation,
545  RelationGetRelationName(indexRelation))));
546 
547  checkedIndex = true;
548 
549  /* Check for partial index */
550  if (indexInfo->ii_Predicate != NIL)
551  {
552  ExprState *predicate;
553 
554  /*
555  * If predicate state not set up yet, create it (in the estate's
556  * per-query context)
557  */
558  predicate = indexInfo->ii_PredicateState;
559  if (predicate == NULL)
560  {
561  predicate = ExecPrepareQual(indexInfo->ii_Predicate, estate);
562  indexInfo->ii_PredicateState = predicate;
563  }
564 
565  /* Skip this index-update if the predicate isn't satisfied */
566  if (!ExecQual(predicate, econtext))
567  continue;
568  }
569 
570  /*
571  * FormIndexDatum fills in its values and isnull parameters with the
572  * appropriate values for the column(s) of the index.
573  */
574  FormIndexDatum(indexInfo,
575  slot,
576  estate,
577  values,
578  isnull);
579 
580  satisfiesConstraint =
581  check_exclusion_or_unique_constraint(heapRelation, indexRelation,
582  indexInfo, &invalidItemPtr,
583  values, isnull, estate, false,
584  CEOUC_WAIT, true,
585  conflictTid);
586  if (!satisfiesConstraint)
587  return false;
588  }
589 
590  if (arbiterIndexes != NIL && !checkedIndex)
591  elog(ERROR, "unexpected failure to find arbiter index");
592 
593  return true;
594 }
void FormIndexDatum(IndexInfo *indexInfo, TupleTableSlot *slot, EState *estate, Datum *values, bool *isnull)
Definition: index.c:1769
int ri_NumIndices
Definition: execnodes.h:357
#define NIL
Definition: pg_list.h:69
Relation ri_RelationDesc
Definition: execnodes.h:354
List * ii_Predicate
Definition: execnodes.h:138
ExprState * ii_PredicateState
Definition: execnodes.h:139
int errcode(int sqlerrcode)
Definition: elog.c:575
static bool ExecQual(ExprState *state, ExprContext *econtext)
Definition: executor.h:347
static bool check_exclusion_or_unique_constraint(Relation heap, Relation index, IndexInfo *indexInfo, ItemPointer tupleid, Datum *values, bool *isnull, EState *estate, bool newIndex, CEOUC_WAIT_MODE waitMode, bool errorOK, ItemPointer conflictTid)
Definition: execIndexing.c:639
#define GetPerTupleExprContext(estate)
Definition: executor.h:457
int errtableconstraint(Relation rel, const char *conname)
Definition: relcache.c:5301
Form_pg_index rd_index
Definition: rel.h:159
#define ERROR
Definition: elog.h:43
#define RelationGetRelationName(relation)
Definition: rel.h:436
ExprState * ExecPrepareQual(List *qual, EState *estate)
Definition: execExpr.c:465
bool ii_ReadyForInserts
Definition: execnodes.h:147
#define ereport(elevel, rest)
Definition: elog.h:122
uintptr_t Datum
Definition: postgres.h:372
bool ii_Unique
Definition: execnodes.h:146
bool list_member_oid(const List *list, Oid datum)
Definition: list.c:505
#define NULL
Definition: c.h:229
#define INDEX_MAX_KEYS
TupleTableSlot * ecxt_scantuple
Definition: execnodes.h:197
static Datum values[MAXATTR]
Definition: bootstrap.c:163
#define ItemPointerSetInvalid(pointer)
Definition: itemptr.h:150
Oid * ii_ExclusionOps
Definition: execnodes.h:140
int errmsg(const char *fmt,...)
Definition: elog.c:797
IndexInfo ** ri_IndexRelationInfo
Definition: execnodes.h:363
int i
#define elog
Definition: elog.h:219
RelationPtr ri_IndexRelationDescs
Definition: execnodes.h:360
ResultRelInfo * es_result_relation_info
Definition: execnodes.h:443
bool ExecCheckRTPerms ( List rangeTable,
bool  ereport_on_violation 
)

Definition at line 569 of file execMain.c.

References ACL_KIND_CLASS, aclcheck_error(), ACLCHECK_NO_PRIV, Assert, ExecCheckRTEPerms(), ExecutorCheckPerms_hook, get_rel_name(), lfirst, RangeTblEntry::relid, result, RTE_RELATION, and RangeTblEntry::rtekind.

Referenced by DoCopy(), InitPlan(), intorel_startup(), and RI_Initial_Check().

570 {
571  ListCell *l;
572  bool result = true;
573 
574  foreach(l, rangeTable)
575  {
576  RangeTblEntry *rte = (RangeTblEntry *) lfirst(l);
577 
578  result = ExecCheckRTEPerms(rte);
579  if (!result)
580  {
581  Assert(rte->rtekind == RTE_RELATION);
582  if (ereport_on_violation)
584  get_rel_name(rte->relid));
585  return false;
586  }
587  }
588 
590  result = (*ExecutorCheckPerms_hook) (rangeTable,
591  ereport_on_violation);
592  return result;
593 }
return result
Definition: formatting.c:1633
void aclcheck_error(AclResult aclerr, AclObjectKind objectkind, const char *objectname)
Definition: aclchk.c:3399
static bool ExecCheckRTEPerms(RangeTblEntry *rte)
Definition: execMain.c:600
ExecutorCheckPerms_hook_type ExecutorCheckPerms_hook
Definition: execMain.c:75
#define Assert(condition)
Definition: c.h:675
#define lfirst(lc)
Definition: pg_list.h:106
RTEKind rtekind
Definition: parsenodes.h:944
char * get_rel_name(Oid relid)
Definition: lsyscache.c:1726
int ExecCleanTargetListLength ( List targetlist)

Definition at line 1007 of file execUtils.c.

References lfirst_node, and TargetEntry::resjunk.

Referenced by check_sql_fn_retval(), and ExecTypeFromTLInternal().

1008 {
1009  int len = 0;
1010  ListCell *tl;
1011 
1012  foreach(tl, targetlist)
1013  {
1014  TargetEntry *curTle = lfirst_node(TargetEntry, tl);
1015 
1016  if (!curTle->resjunk)
1017  len++;
1018  }
1019  return len;
1020 }
bool resjunk
Definition: primnodes.h:1375
#define lfirst_node(type, lc)
Definition: pg_list.h:109
TupleDesc ExecCleanTypeFromTL ( List targetList,
bool  hasoid 
)

Definition at line 900 of file execTuples.c.

References ExecTypeFromTLInternal().

Referenced by ExecInitJunkFilter(), PlanCacheComputeResultDesc(), and PortalStart().

901 {
902  return ExecTypeFromTLInternal(targetList, hasoid, true);
903 }
static TupleDesc ExecTypeFromTLInternal(List *targetList, bool hasoid, bool skipjunk)
Definition: execTuples.c:906
void ExecCleanUpTriggerState ( EState estate)

Definition at line 1440 of file execMain.c.

References EState::es_trig_target_relations, ExecCloseIndices(), heap_close, lfirst, NoLock, and ResultRelInfo::ri_RelationDesc.

Referenced by afterTriggerInvokeEvents(), CopyFrom(), EvalPlanQualEnd(), and ExecEndPlan().

1441 {
1442  ListCell *l;
1443 
1444  foreach(l, estate->es_trig_target_relations)
1445  {
1446  ResultRelInfo *resultRelInfo = (ResultRelInfo *) lfirst(l);
1447 
1448  /* Close indices and then the relation itself */
1449  ExecCloseIndices(resultRelInfo);
1450  heap_close(resultRelInfo->ri_RelationDesc, NoLock);
1451  }
1452 }
Relation ri_RelationDesc
Definition: execnodes.h:354
#define heap_close(r, l)
Definition: heapam.h:97
#define NoLock
Definition: lockdefs.h:34
List * es_trig_target_relations
Definition: execnodes.h:456
#define lfirst(lc)
Definition: pg_list.h:106
void ExecCloseIndices(ResultRelInfo *resultRelInfo)
Definition: execIndexing.c:224
void ExecCloseIndices ( ResultRelInfo resultRelInfo)

Definition at line 224 of file execIndexing.c.

References i, index_close(), NULL, ResultRelInfo::ri_IndexRelationDescs, ResultRelInfo::ri_NumIndices, and RowExclusiveLock.

Referenced by apply_handle_delete(), apply_handle_insert(), apply_handle_update(), CatalogCloseIndexes(), CopyFrom(), ExecCleanUpTriggerState(), ExecEndModifyTable(), and ExecEndPlan().

225 {
226  int i;
227  int numIndices;
228  RelationPtr indexDescs;
229 
230  numIndices = resultRelInfo->ri_NumIndices;
231  indexDescs = resultRelInfo->ri_IndexRelationDescs;
232 
233  for (i = 0; i < numIndices; i++)
234  {
235  if (indexDescs[i] == NULL)
236  continue; /* shouldn't happen? */
237 
238  /* Drop lock acquired by ExecOpenIndices */
239  index_close(indexDescs[i], RowExclusiveLock);
240  }
241 
242  /*
243  * XXX should free indexInfo array here too? Currently we assume that
244  * such stuff will be cleaned up automatically in FreeExecutorState.
245  */
246 }
int ri_NumIndices
Definition: execnodes.h:357
#define RowExclusiveLock
Definition: lockdefs.h:38
#define NULL
Definition: c.h:229
void index_close(Relation relation, LOCKMODE lockmode)
Definition: indexam.c:176
int i
RelationPtr ri_IndexRelationDescs
Definition: execnodes.h:360
void ExecCloseScanRelation ( Relation  scanrel)

Definition at line 661 of file execUtils.c.

References heap_close, and NoLock.

Referenced by ExecEndBitmapHeapScan(), ExecEndCustomScan(), ExecEndForeignScan(), ExecEndIndexOnlyScan(), ExecEndIndexScan(), ExecEndSampleScan(), ExecEndSeqScan(), and ExecEndTidScan().

662 {
663  heap_close(scanrel, NoLock);
664 }
#define heap_close(r, l)
Definition: heapam.h:97
#define NoLock
Definition: lockdefs.h:34
void ExecConstraints ( ResultRelInfo resultRelInfo,
TupleTableSlot slot,
EState estate 
)

Definition at line 1914 of file execMain.c.

References Assert, tupleDesc::attrs, bms_union(), tupleDesc::constr, convert_tuples_by_name(), do_convert_tuple(), ereport, errcode(), errdetail(), errmsg(), ERROR, errtablecol(), errtableconstraint(), ExecBuildSlotValueDescription(), ExecFetchSlotTuple(), ExecPartitionCheck(), ExecRelCheck(), ExecSetSlotDescriptor(), ExecStoreTuple(), GetInsertedColumns, gettext_noop, GetUpdatedColumns, tupleConstr::has_not_null, InvalidBuffer, NameStr, tupleDesc::natts, NULL, tupleConstr::num_check, RelationGetDescr, RelationGetRelationName, RelationGetRelid, ResultRelInfo::ri_PartitionCheck, ResultRelInfo::ri_PartitionRoot, ResultRelInfo::ri_RelationDesc, and slot_attisnull().

Referenced by CopyFrom(), ExecInsert(), ExecSimpleRelationInsert(), ExecSimpleRelationUpdate(), and ExecUpdate().

1916 {
1917  Relation rel = resultRelInfo->ri_RelationDesc;
1918  TupleDesc tupdesc = RelationGetDescr(rel);
1919  TupleConstr *constr = tupdesc->constr;
1920  Bitmapset *modifiedCols;
1921  Bitmapset *insertedCols;
1922  Bitmapset *updatedCols;
1923 
1924  Assert(constr || resultRelInfo->ri_PartitionCheck);
1925 
1926  if (constr && constr->has_not_null)
1927  {
1928  int natts = tupdesc->natts;
1929  int attrChk;
1930 
1931  for (attrChk = 1; attrChk <= natts; attrChk++)
1932  {
1933  if (tupdesc->attrs[attrChk - 1]->attnotnull &&
1934  slot_attisnull(slot, attrChk))
1935  {
1936  char *val_desc;
1937  Relation orig_rel = rel;
1938  TupleDesc orig_tupdesc = RelationGetDescr(rel);
1939 
1940  /*
1941  * If the tuple has been routed, it's been converted to the
1942  * partition's rowtype, which might differ from the root
1943  * table's. We must convert it back to the root table's
1944  * rowtype so that val_desc shown error message matches the
1945  * input tuple.
1946  */
1947  if (resultRelInfo->ri_PartitionRoot)
1948  {
1949  HeapTuple tuple = ExecFetchSlotTuple(slot);
1950  TupleConversionMap *map;
1951 
1952  rel = resultRelInfo->ri_PartitionRoot;
1953  tupdesc = RelationGetDescr(rel);
1954  /* a reverse map */
1955  map = convert_tuples_by_name(orig_tupdesc, tupdesc,
1956  gettext_noop("could not convert row type"));
1957  if (map != NULL)
1958  {
1959  tuple = do_convert_tuple(tuple, map);
1960  ExecSetSlotDescriptor(slot, tupdesc);
1961  ExecStoreTuple(tuple, slot, InvalidBuffer, false);
1962  }
1963  }
1964 
1965  insertedCols = GetInsertedColumns(resultRelInfo, estate);
1966  updatedCols = GetUpdatedColumns(resultRelInfo, estate);
1967  modifiedCols = bms_union(insertedCols, updatedCols);
1969  slot,
1970  tupdesc,
1971  modifiedCols,
1972  64);
1973 
1974  ereport(ERROR,
1975  (errcode(ERRCODE_NOT_NULL_VIOLATION),
1976  errmsg("null value in column \"%s\" violates not-null constraint",
1977  NameStr(orig_tupdesc->attrs[attrChk - 1]->attname)),
1978  val_desc ? errdetail("Failing row contains %s.", val_desc) : 0,
1979  errtablecol(orig_rel, attrChk)));
1980  }
1981  }
1982  }
1983 
1984  if (constr && constr->num_check > 0)
1985  {
1986  const char *failed;
1987 
1988  if ((failed = ExecRelCheck(resultRelInfo, slot, estate)) != NULL)
1989  {
1990  char *val_desc;
1991  Relation orig_rel = rel;
1992 
1993  /* See the comment above. */
1994  if (resultRelInfo->ri_PartitionRoot)
1995  {
1996  HeapTuple tuple = ExecFetchSlotTuple(slot);
1997  TupleDesc old_tupdesc = RelationGetDescr(rel);
1998  TupleConversionMap *map;
1999 
2000  rel = resultRelInfo->ri_PartitionRoot;
2001  tupdesc = RelationGetDescr(rel);
2002  /* a reverse map */
2003  map = convert_tuples_by_name(old_tupdesc, tupdesc,
2004  gettext_noop("could not convert row type"));
2005  if (map != NULL)
2006  {
2007  tuple = do_convert_tuple(tuple, map);
2008  ExecSetSlotDescriptor(slot, tupdesc);
2009  ExecStoreTuple(tuple, slot, InvalidBuffer, false);
2010  }
2011  }
2012 
2013  insertedCols = GetInsertedColumns(resultRelInfo, estate);
2014  updatedCols = GetUpdatedColumns(resultRelInfo, estate);
2015  modifiedCols = bms_union(insertedCols, updatedCols);
2017  slot,
2018  tupdesc,
2019  modifiedCols,
2020  64);
2021  ereport(ERROR,
2022  (errcode(ERRCODE_CHECK_VIOLATION),
2023  errmsg("new row for relation \"%s\" violates check constraint \"%s\"",
2024  RelationGetRelationName(orig_rel), failed),
2025  val_desc ? errdetail("Failing row contains %s.", val_desc) : 0,
2026  errtableconstraint(orig_rel, failed)));
2027  }
2028  }
2029 
2030  if (resultRelInfo->ri_PartitionCheck)
2031  ExecPartitionCheck(resultRelInfo, slot, estate);
2032 }
#define GetUpdatedColumns(relinfo, estate)
Definition: execMain.c:117
TupleTableSlot * ExecStoreTuple(HeapTuple tuple, TupleTableSlot *slot, Buffer buffer, bool shouldFree)
Definition: execTuples.c:320
Relation ri_RelationDesc
Definition: execnodes.h:354
#define RelationGetDescr(relation)
Definition: rel.h:428
Relation ri_PartitionRoot
Definition: execnodes.h:414
Form_pg_attribute * attrs
Definition: tupdesc.h:74
#define InvalidBuffer
Definition: buf.h:25
#define gettext_noop(x)
Definition: c.h:139
int errcode(int sqlerrcode)
Definition: elog.c:575
int natts
Definition: tupdesc.h:73
int errtableconstraint(Relation rel, const char *conname)
Definition: relcache.c:5301
#define ERROR
Definition: elog.h:43
static char * ExecBuildSlotValueDescription(Oid reloid, TupleTableSlot *slot, TupleDesc tupdesc, Bitmapset *modifiedCols, int maxfieldlen)
Definition: execMain.c:2192
int errdetail(const char *fmt,...)
Definition: elog.c:873
#define RelationGetRelationName(relation)
Definition: rel.h:436
#define ereport(elevel, rest)
Definition: elog.h:122
bool has_not_null
Definition: tupdesc.h:43
TupleConversionMap * convert_tuples_by_name(TupleDesc indesc, TupleDesc outdesc, const char *msg)
Definition: tupconvert.c:205
void ExecSetSlotDescriptor(TupleTableSlot *slot, TupleDesc tupdesc)
Definition: execTuples.c:247
List * ri_PartitionCheck
Definition: execnodes.h:408
static const char * ExecRelCheck(ResultRelInfo *resultRelInfo, TupleTableSlot *slot, EState *estate)
Definition: execMain.c:1765
bool slot_attisnull(TupleTableSlot *slot, int attnum)
Definition: heaptuple.c:1328
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
int errtablecol(Relation rel, int attnum)
Definition: relcache.c:5264
TupleConstr * constr
Definition: tupdesc.h:76
Bitmapset * bms_union(const Bitmapset *a, const Bitmapset *b)
Definition: bitmapset.c:218
HeapTuple do_convert_tuple(HeapTuple tuple, TupleConversionMap *map)
Definition: tupconvert.c:343
HeapTuple ExecFetchSlotTuple(TupleTableSlot *slot)
Definition: execTuples.c:618
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define NameStr(name)
Definition: c.h:499
uint16 num_check
Definition: tupdesc.h:42
#define RelationGetRelid(relation)
Definition: rel.h:416
#define GetInsertedColumns(relinfo, estate)
Definition: execMain.c:115
static void ExecPartitionCheck(ResultRelInfo *resultRelInfo, TupleTableSlot *slot, EState *estate)
Definition: execMain.c:1827
bool ExecContextForcesOids ( PlanState planstate,
bool hasoids 
)

Definition at line 1487 of file execMain.c.

References EState::es_result_relation_info, EState::es_top_eflags, EXEC_FLAG_WITH_OIDS, EXEC_FLAG_WITHOUT_OIDS, NULL, RelationData::rd_rel, ResultRelInfo::ri_RelationDesc, and PlanState::state.

Referenced by ExecAssignResultTypeFromTL(), ExecInitGather(), ExecInitGatherMerge(), and tlist_matches_tupdesc().

1488 {
1489  ResultRelInfo *ri = planstate->state->es_result_relation_info;
1490 
1491  if (ri != NULL)
1492  {
1493  Relation rel = ri->ri_RelationDesc;
1494 
1495  if (rel != NULL)
1496  {
1497  *hasoids = rel->rd_rel->relhasoids;
1498  return true;
1499  }
1500  }
1501 
1502  if (planstate->state->es_top_eflags & EXEC_FLAG_WITH_OIDS)
1503  {
1504  *hasoids = true;
1505  return true;
1506  }
1507  if (planstate->state->es_top_eflags & EXEC_FLAG_WITHOUT_OIDS)
1508  {
1509  *hasoids = false;
1510  return true;
1511  }
1512 
1513  return false;
1514 }
Relation ri_RelationDesc
Definition: execnodes.h:354
EState * state
Definition: execnodes.h:834
Form_pg_class rd_rel
Definition: rel.h:114
#define EXEC_FLAG_WITHOUT_OIDS
Definition: executor.h:64
#define NULL
Definition: c.h:229
#define EXEC_FLAG_WITH_OIDS
Definition: executor.h:63
int es_top_eflags
Definition: execnodes.h:477
ResultRelInfo * es_result_relation_info
Definition: execnodes.h:443
bool execCurrentOf ( CurrentOfExpr cexpr,
ExprContext econtext,
Oid  table_oid,
ItemPointer  current_tid 
)

Definition at line 41 of file execCurrent.c.

References Assert, PortalData::atEnd, PortalData::atStart, ExecRowMark::curCtid, CurrentOfExpr::cursor_name, CurrentOfExpr::cursor_param, DatumGetObjectId, DatumGetPointer, elog, ereport, errcode(), errmsg(), ERROR, EState::es_rowMarks, QueryDesc::estate, fetch_cursor_param_value(), get_rel_name(), GetPortalByName(), ItemPointerIsValid, lfirst, ExecRowMark::markType, NULL, PG_USED_FOR_ASSERTS_ONLY, QueryDesc::planstate, PORTAL_ONE_SELECT, PortalGetQueryDesc, PortalIsValid, ExecRowMark::relid, RowMarkRequiresRowShareLock, search_plan_tree(), SelfItemPointerAttributeNumber, slot_getattr(), ScanState::ss_ScanTupleSlot, PortalData::strategy, TableOidAttributeNumber, and TupIsNull.

Referenced by TidListEval().

45 {
46  char *cursor_name;
47  char *table_name;
48  Portal portal;
49  QueryDesc *queryDesc;
50 
51  /* Get the cursor name --- may have to look up a parameter reference */
52  if (cexpr->cursor_name)
53  cursor_name = cexpr->cursor_name;
54  else
55  cursor_name = fetch_cursor_param_value(econtext, cexpr->cursor_param);
56 
57  /* Fetch table name for possible use in error messages */
58  table_name = get_rel_name(table_oid);
59  if (table_name == NULL)
60  elog(ERROR, "cache lookup failed for relation %u", table_oid);
61 
62  /* Find the cursor's portal */
63  portal = GetPortalByName(cursor_name);
64  if (!PortalIsValid(portal))
65  ereport(ERROR,
66  (errcode(ERRCODE_UNDEFINED_CURSOR),
67  errmsg("cursor \"%s\" does not exist", cursor_name)));
68 
69  /*
70  * We have to watch out for non-SELECT queries as well as held cursors,
71  * both of which may have null queryDesc.
72  */
73  if (portal->strategy != PORTAL_ONE_SELECT)
74  ereport(ERROR,
75  (errcode(ERRCODE_INVALID_CURSOR_STATE),
76  errmsg("cursor \"%s\" is not a SELECT query",
77  cursor_name)));
78  queryDesc = PortalGetQueryDesc(portal);
79  if (queryDesc == NULL || queryDesc->estate == NULL)
80  ereport(ERROR,
81  (errcode(ERRCODE_INVALID_CURSOR_STATE),
82  errmsg("cursor \"%s\" is held from a previous transaction",
83  cursor_name)));
84 
85  /*
86  * We have two different strategies depending on whether the cursor uses
87  * FOR UPDATE/SHARE or not. The reason for supporting both is that the
88  * FOR UPDATE code is able to identify a target table in many cases where
89  * the other code can't, while the non-FOR-UPDATE case allows use of WHERE
90  * CURRENT OF with an insensitive cursor.
91  */
92  if (queryDesc->estate->es_rowMarks)
93  {
94  ExecRowMark *erm;
95  ListCell *lc;
96 
97  /*
98  * Here, the query must have exactly one FOR UPDATE/SHARE reference to
99  * the target table, and we dig the ctid info out of that.
100  */
101  erm = NULL;
102  foreach(lc, queryDesc->estate->es_rowMarks)
103  {
104  ExecRowMark *thiserm = (ExecRowMark *) lfirst(lc);
105 
106  if (!RowMarkRequiresRowShareLock(thiserm->markType))
107  continue; /* ignore non-FOR UPDATE/SHARE items */
108 
109  if (thiserm->relid == table_oid)
110  {
111  if (erm)
112  ereport(ERROR,
113  (errcode(ERRCODE_INVALID_CURSOR_STATE),
114  errmsg("cursor \"%s\" has multiple FOR UPDATE/SHARE references to table \"%s\"",
115  cursor_name, table_name)));
116  erm = thiserm;
117  }
118  }
119 
120  if (erm == NULL)
121  ereport(ERROR,
122  (errcode(ERRCODE_INVALID_CURSOR_STATE),
123  errmsg("cursor \"%s\" does not have a FOR UPDATE/SHARE reference to table \"%s\"",
124  cursor_name, table_name)));
125 
126  /*
127  * The cursor must have a current result row: per the SQL spec, it's
128  * an error if not.
129  */
130  if (portal->atStart || portal->atEnd)
131  ereport(ERROR,
132  (errcode(ERRCODE_INVALID_CURSOR_STATE),
133  errmsg("cursor \"%s\" is not positioned on a row",
134  cursor_name)));
135 
136  /* Return the currently scanned TID, if there is one */
137  if (ItemPointerIsValid(&(erm->curCtid)))
138  {
139  *current_tid = erm->curCtid;
140  return true;
141  }
142 
143  /*
144  * This table didn't produce the cursor's current row; some other
145  * inheritance child of the same parent must have. Signal caller to
146  * do nothing on this table.
147  */
148  return false;
149  }
150  else
151  {
152  ScanState *scanstate;
153  bool lisnull;
154  Oid tuple_tableoid PG_USED_FOR_ASSERTS_ONLY;
155  ItemPointer tuple_tid;
156 
157  /*
158  * Without FOR UPDATE, we dig through the cursor's plan to find the
159  * scan node. Fail if it's not there or buried underneath
160  * aggregation.
161  */
162  scanstate = search_plan_tree(queryDesc->planstate, table_oid);
163  if (!scanstate)
164  ereport(ERROR,
165  (errcode(ERRCODE_INVALID_CURSOR_STATE),
166  errmsg("cursor \"%s\" is not a simply updatable scan of table \"%s\"",
167  cursor_name, table_name)));
168 
169  /*
170  * The cursor must have a current result row: per the SQL spec, it's
171  * an error if not. We test this at the top level, rather than at the
172  * scan node level, because in inheritance cases any one table scan
173  * could easily not be on a row. We want to return false, not raise
174  * error, if the passed-in table OID is for one of the inactive scans.
175  */
176  if (portal->atStart || portal->atEnd)
177  ereport(ERROR,
178  (errcode(ERRCODE_INVALID_CURSOR_STATE),
179  errmsg("cursor \"%s\" is not positioned on a row",
180  cursor_name)));
181 
182  /* Now OK to return false if we found an inactive scan */
183  if (TupIsNull(scanstate->ss_ScanTupleSlot))
184  return false;
185 
186  /* Use slot_getattr to catch any possible mistakes */
187  tuple_tableoid =
190  &lisnull));
191  Assert(!lisnull);
192  tuple_tid = (ItemPointer)
195  &lisnull));
196  Assert(!lisnull);
197 
198  Assert(tuple_tableoid == table_oid);
199 
200  *current_tid = *tuple_tid;
201 
202  return true;
203  }
204 }
#define ItemPointerIsValid(pointer)
Definition: itemptr.h:60
bool atEnd
Definition: portal.h:187
EState * estate
Definition: execdesc.h:48
Portal GetPortalByName(const char *name)
Definition: portalmem.c:129
#define DatumGetObjectId(X)
Definition: postgres.h:506
int errcode(int sqlerrcode)
Definition: elog.c:575
TupleTableSlot * ss_ScanTupleSlot
Definition: execnodes.h:1082
unsigned int Oid
Definition: postgres_ext.h:31
#define RowMarkRequiresRowShareLock(marktype)
Definition: plannodes.h:960
ItemPointerData * ItemPointer
Definition: itemptr.h:49
ItemPointerData curCtid
Definition: execnodes.h:540
#define ERROR
Definition: elog.h:43
PlanState * planstate
Definition: execdesc.h:49
#define TupIsNull(slot)
Definition: tuptable.h:138
#define TableOidAttributeNumber
Definition: sysattr.h:27
char * cursor_name
Definition: primnodes.h:1278
PortalStrategy strategy
Definition: portal.h:143
#define ereport(elevel, rest)
Definition: elog.h:122
#define PortalIsValid(p)
Definition: portal.h:199
static ScanState * search_plan_tree(PlanState *node, Oid table_oid)
Definition: execCurrent.c:254
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
#define lfirst(lc)
Definition: pg_list.h:106
RowMarkType markType
Definition: execnodes.h:536
List * es_rowMarks
Definition: execnodes.h:472
#define DatumGetPointer(X)
Definition: postgres.h:555
#define PortalGetQueryDesc(portal)
Definition: portal.h:204
bool atStart
Definition: portal.h:186
int errmsg(const char *fmt,...)
Definition: elog.c:797
static char * fetch_cursor_param_value(ExprContext *econtext, int paramId)
Definition: execCurrent.c:212
Datum slot_getattr(TupleTableSlot *slot, int attnum, bool *isnull)
Definition: heaptuple.c:1141
#define SelfItemPointerAttributeNumber
Definition: sysattr.h:21
#define elog
Definition: elog.h:219
#define PG_USED_FOR_ASSERTS_ONLY
Definition: c.h:990
char * get_rel_name(Oid relid)
Definition: lsyscache.c:1726
void ExecEndNode ( PlanState node)

Definition at line 654 of file execProcnode.c.

References bms_free(), PlanState::chgParam, elog, ERROR, ExecEndAgg(), ExecEndAppend(), ExecEndBitmapAnd(), ExecEndBitmapHeapScan(), ExecEndBitmapIndexScan(), ExecEndBitmapOr(), ExecEndCteScan(), ExecEndCustomScan(), ExecEndForeignScan(), ExecEndFunctionScan(), ExecEndGather(), ExecEndGatherMerge(), ExecEndGroup(), ExecEndHash(), ExecEndHashJoin(), ExecEndIndexOnlyScan(), ExecEndIndexScan(), ExecEndLimit(), ExecEndLockRows(), ExecEndMaterial(), ExecEndMergeAppend(), ExecEndMergeJoin(), ExecEndModifyTable(), ExecEndNamedTuplestoreScan(), ExecEndNestLoop(), ExecEndProjectSet(), ExecEndRecursiveUnion(), ExecEndResult(), ExecEndSampleScan(), ExecEndSeqScan(), ExecEndSetOp(), ExecEndSort(), ExecEndSubqueryScan(), ExecEndTableFuncScan(), ExecEndTidScan(), ExecEndUnique(), ExecEndValuesScan(), ExecEndWindowAgg(), ExecEndWorkTableScan(), nodeTag, NULL, T_AggState, T_AppendState, T_BitmapAndState, T_BitmapHeapScanState, T_BitmapIndexScanState, T_BitmapOrState, T_CteScanState, T_CustomScanState, T_ForeignScanState, T_FunctionScanState, T_GatherMergeState, T_GatherState, T_GroupState, T_HashJoinState, T_HashState, T_IndexOnlyScanState, T_IndexScanState, T_LimitState, T_LockRowsState, T_MaterialState, T_MergeAppendState, T_MergeJoinState, T_ModifyTableState, T_NamedTuplestoreScanState, T_NestLoopState, T_ProjectSetState, T_RecursiveUnionState, T_ResultState, T_SampleScanState, T_SeqScanState, T_SetOpState, T_SortState, T_SubqueryScanState, T_TableFuncScanState, T_TidScanState, T_UniqueState, T_ValuesScanState, T_WindowAggState, and T_WorkTableScanState.

Referenced by EvalPlanQualEnd(), ExecEndAgg(), ExecEndAppend(), ExecEndBitmapAnd(), ExecEndBitmapHeapScan(), ExecEndBitmapOr(), ExecEndForeignScan(), ExecEndGather(), ExecEndGatherMerge(), ExecEndGroup(), ExecEndHash(), ExecEndHashJoin(), ExecEndLimit(), ExecEndLockRows(), ExecEndMaterial(), ExecEndMergeAppend(), ExecEndMergeJoin(), ExecEndModifyTable(), ExecEndNestLoop(), ExecEndPlan(), ExecEndProjectSet(), ExecEndRecursiveUnion(), ExecEndResult(), ExecEndSetOp(), ExecEndSort(), ExecEndSubqueryScan(), ExecEndUnique(), and ExecEndWindowAgg().

655 {
656  /*
657  * do nothing when we get to the end of a leaf on tree.
658  */
659  if (node == NULL)
660  return;
661 
662  if (node->chgParam != NULL)
663  {
664  bms_free(node->chgParam);
665  node->chgParam = NULL;
666  }
667 
668  switch (nodeTag(node))
669  {
670  /*
671  * control nodes
672  */
673  case T_ResultState:
674  ExecEndResult((ResultState *) node);
675  break;
676 
677  case T_ProjectSetState:
679  break;
680 
681  case T_ModifyTableState:
683  break;
684 
685  case T_AppendState:
686  ExecEndAppend((AppendState *) node);
687  break;
688 
689  case T_MergeAppendState:
691  break;
692 
695  break;
696 
697  case T_BitmapAndState:
699  break;
700 
701  case T_BitmapOrState:
702  ExecEndBitmapOr((BitmapOrState *) node);
703  break;
704 
705  /*
706  * scan nodes
707  */
708  case T_SeqScanState:
709  ExecEndSeqScan((SeqScanState *) node);
710  break;
711 
712  case T_SampleScanState:
714  break;
715 
716  case T_GatherState:
717  ExecEndGather((GatherState *) node);
718  break;
719 
720  case T_GatherMergeState:
722  break;
723 
724  case T_IndexScanState:
726  break;
727 
730  break;
731 
734  break;
735 
738  break;
739 
740  case T_TidScanState:
741  ExecEndTidScan((TidScanState *) node);
742  break;
743 
744  case T_SubqueryScanState:
746  break;
747 
748  case T_FunctionScanState:
750  break;
751 
754  break;
755 
756  case T_ValuesScanState:
758  break;
759 
760  case T_CteScanState:
761  ExecEndCteScan((CteScanState *) node);
762  break;
763 
766  break;
767 
770  break;
771 
772  case T_ForeignScanState:
774  break;
775 
776  case T_CustomScanState:
778  break;
779 
780  /*
781  * join nodes
782  */
783  case T_NestLoopState:
784  ExecEndNestLoop((NestLoopState *) node);
785  break;
786 
787  case T_MergeJoinState:
789  break;
790 
791  case T_HashJoinState:
792  ExecEndHashJoin((HashJoinState *) node);
793  break;
794 
795  /*
796  * materialization nodes
797  */
798  case T_MaterialState:
799  ExecEndMaterial((MaterialState *) node);
800  break;
801 
802  case T_SortState:
803  ExecEndSort((SortState *) node);
804  break;
805 
806  case T_GroupState:
807  ExecEndGroup((GroupState *) node);
808  break;
809 
810  case T_AggState:
811  ExecEndAgg((AggState *) node);
812  break;
813 
814  case T_WindowAggState:
816  break;
817 
818  case T_UniqueState:
819  ExecEndUnique((UniqueState *) node);
820  break;
821 
822  case T_HashState:
823  ExecEndHash((HashState *) node);
824  break;
825 
826  case T_SetOpState:
827  ExecEndSetOp((SetOpState *) node);
828  break;
829 
830  case T_LockRowsState:
831  ExecEndLockRows((LockRowsState *) node);
832  break;
833 
834  case T_LimitState:
835  ExecEndLimit((LimitState *) node);
836  break;
837 
838  default:
839  elog(ERROR, "unrecognized node type: %d", (int) nodeTag(node));
840  break;
841  }
842 }
void ExecEndGroup(GroupState *node)
Definition: nodeGroup.c:226
void ExecEndSetOp(SetOpState *node)
Definition: nodeSetOp.c:575
void ExecEndFunctionScan(FunctionScanState *node)
void ExecEndNestLoop(NestLoopState *node)
Definition: nodeNestloop.c:361
void ExecEndIndexScan(IndexScanState *node)
void ExecEndLimit(LimitState *node)
Definition: nodeLimit.c:426
void ExecEndUnique(UniqueState *node)
Definition: nodeUnique.c:173
void ExecEndGatherMerge(GatherMergeState *node)
void ExecEndWorkTableScan(WorkTableScanState *node)
void ExecEndLockRows(LockRowsState *node)
Definition: nodeLockRows.c:446
void ExecEndNamedTuplestoreScan(NamedTuplestoreScanState *node)
void ExecEndBitmapAnd(BitmapAndState *node)
void ExecEndRecursiveUnion(RecursiveUnionState *node)
void ExecEndSubqueryScan(SubqueryScanState *node)
void ExecEndHashJoin(HashJoinState *node)
Definition: nodeHashjoin.c:548
void ExecEndTableFuncScan(TableFuncScanState *node)
void ExecEndResult(ResultState *node)
Definition: nodeResult.c:241
#define ERROR
Definition: elog.h:43
void ExecEndAppend(AppendState *node)
Definition: nodeAppend.c:252
void ExecEndForeignScan(ForeignScanState *node)
void ExecEndSort(SortState *node)
Definition: nodeSort.c:224
void ExecEndBitmapIndexScan(BitmapIndexScanState *node)
void ExecEndValuesScan(ValuesScanState *node)
void ExecEndMergeJoin(MergeJoinState *node)
void ExecEndSeqScan(SeqScanState *node)
Definition: nodeSeqscan.c:221
void ExecEndIndexOnlyScan(IndexOnlyScanState *node)
void ExecEndTidScan(TidScanState *node)
Definition: nodeTidscan.c:477
Bitmapset * chgParam
Definition: execnodes.h:856
void ExecEndCteScan(CteScanState *node)
Definition: nodeCtescan.c:277
void ExecEndCustomScan(CustomScanState *node)
Definition: nodeCustom.c:112
void ExecEndBitmapOr(BitmapOrState *node)
Definition: nodeBitmapOr.c:182
void ExecEndSampleScan(SampleScanState *node)
void bms_free(Bitmapset *a)
Definition: bitmapset.c:201
void ExecEndWindowAgg(WindowAggState *node)
#define NULL
Definition: c.h:229
void ExecEndMergeAppend(MergeAppendState *node)
#define nodeTag(nodeptr)
Definition: nodes.h:514
void ExecEndHash(HashState *node)
Definition: nodeHash.c:218
void ExecEndProjectSet(ProjectSetState *node)
void ExecEndMaterial(MaterialState *node)
Definition: nodeMaterial.c:240
#define elog
Definition: elog.h:219
void ExecEndBitmapHeapScan(BitmapHeapScanState *node)
void ExecEndAgg(AggState *node)
Definition: nodeAgg.c:3836
void ExecEndModifyTable(ModifyTableState *node)
void ExecEndGather(GatherState *node)
Definition: nodeGather.c:226
static Datum ExecEvalExprSwitchContext ( ExprState state,
ExprContext econtext,
bool isNull 
)
inlinestatic

Definition at line 282 of file executor.h.

References ExprContext::ecxt_per_tuple_memory, ExprState::evalfunc, and MemoryContextSwitchTo().

Referenced by advance_aggregates(), evaluate_expr(), EvaluateParams(), ExecCheck(), ExecProject(), ExecQual(), ExecScanSubPlan(), ExecSetParamPlan(), ExecWindowAgg(), FormIndexDatum(), FormPartitionKeyDatum(), get_qual_for_range(), operator_predicate_proof(), recompute_limits(), tablesample_init(), TidListEval(), and validateDomainConstraint().

285 {
286  Datum retDatum;
287  MemoryContext oldContext;
288 
289  oldContext = MemoryContextSwitchTo(econtext->ecxt_per_tuple_memory);
290  retDatum = (*state->evalfunc) (state, econtext, isNull);
291  MemoryContextSwitchTo(oldContext);
292  return retDatum;
293 }
MemoryContext ecxt_per_tuple_memory
Definition: execnodes.h:203
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
ExprStateEvalFunc evalfunc
Definition: execnodes.h:80
uintptr_t Datum
Definition: postgres.h:372
TupleTableSlot* ExecFilterJunk ( JunkFilter junkfilter,
TupleTableSlot slot 
)

Definition at line 262 of file execJunk.c.

References ExecClearTuple(), ExecStoreVirtualTuple(), i, JunkFilter::jf_cleanMap, JunkFilter::jf_cleanTupType, JunkFilter::jf_resultSlot, tupleDesc::natts, slot_getallattrs(), TupleTableSlot::tts_isnull, TupleTableSlot::tts_values, and values.

Referenced by ExecBRUpdateTriggers(), ExecEvalWholeRowVar(), ExecModifyTable(), ExecUpdate(), ExecutePlan(), and sqlfunction_receive().

263 {
264  TupleTableSlot *resultSlot;
265  AttrNumber *cleanMap;
266  TupleDesc cleanTupType;
267  int cleanLength;
268  int i;
269  Datum *values;
270  bool *isnull;
271  Datum *old_values;
272  bool *old_isnull;
273 
274  /*
275  * Extract all the values of the old tuple.
276  */
277  slot_getallattrs(slot);
278  old_values = slot->tts_values;
279  old_isnull = slot->tts_isnull;
280 
281  /*
282  * get info from the junk filter
283  */
284  cleanTupType = junkfilter->jf_cleanTupType;
285  cleanLength = cleanTupType->natts;
286  cleanMap = junkfilter->jf_cleanMap;
287  resultSlot = junkfilter->jf_resultSlot;
288 
289  /*
290  * Prepare to build a virtual result tuple.
291  */
292  ExecClearTuple(resultSlot);
293  values = resultSlot->tts_values;
294  isnull = resultSlot->tts_isnull;
295 
296  /*
297  * Transpose data into proper fields of the new tuple.
298  */
299  for (i = 0; i < cleanLength; i++)
300  {
301  int j = cleanMap[i];
302 
303  if (j == 0)
304  {
305  values[i] = (Datum) 0;
306  isnull[i] = true;
307  }
308  else
309  {
310  values[i] = old_values[j - 1];
311  isnull[i] = old_isnull[j - 1];
312  }
313  }
314 
315  /*
316  * And return the virtual tuple.
317  */
318  return ExecStoreVirtualTuple(resultSlot);
319 }
AttrNumber * jf_cleanMap
Definition: execnodes.h:334
TupleTableSlot * ExecClearTuple(TupleTableSlot *slot)
Definition: execTuples.c:439
TupleTableSlot * jf_resultSlot
Definition: execnodes.h:335
Datum * tts_values
Definition: tuptable.h:125
int natts
Definition: tupdesc.h:73
bool * tts_isnull
Definition: tuptable.h:126
TupleDesc jf_cleanTupType
Definition: execnodes.h:333
void slot_getallattrs(TupleTableSlot *slot)
Definition: heaptuple.c:1237
uintptr_t Datum
Definition: postgres.h:372
static Datum values[MAXATTR]
Definition: bootstrap.c:163
int i
int16 AttrNumber
Definition: attnum.h:21
TupleTableSlot * ExecStoreVirtualTuple(TupleTableSlot *slot)
Definition: execTuples.c:488
AttrNumber ExecFindJunkAttribute ( JunkFilter junkfilter,
const char *  attrName 
)

Definition at line 209 of file execJunk.c.

References ExecFindJunkAttributeInTlist(), and JunkFilter::jf_targetList.

Referenced by ExecInitModifyTable().

210 {
211  return ExecFindJunkAttributeInTlist(junkfilter->jf_targetList, attrName);
212 }
AttrNumber ExecFindJunkAttributeInTlist(List *targetlist, const char *attrName)
Definition: execJunk.c:221
List * jf_targetList
Definition: execnodes.h:332
AttrNumber ExecFindJunkAttributeInTlist ( List targetlist,
const char *  attrName 
)

Definition at line 221 of file execJunk.c.

References InvalidAttrNumber, lfirst, TargetEntry::resjunk, TargetEntry::resname, and TargetEntry::resno.

Referenced by ExecBuildAuxRowMark(), ExecFindJunkAttribute(), and postgresBeginForeignModify().

222 {
223  ListCell *t;
224 
225  foreach(t, targetlist)
226  {
227  TargetEntry *tle = lfirst(t);
228 
229  if (tle->resjunk && tle->resname &&
230  (strcmp(tle->resname, attrName) == 0))
231  {
232  /* We found it ! */
233  return tle->resno;
234  }
235  }
236 
237  return InvalidAttrNumber;
238 }
char * resname
Definition: primnodes.h:1370
bool resjunk
Definition: primnodes.h:1375
AttrNumber resno
Definition: primnodes.h:1369
#define lfirst(lc)
Definition: pg_list.h:106
#define InvalidAttrNumber
Definition: attnum.h:23
int ExecFindPartition ( ResultRelInfo resultRelInfo,
PartitionDispatch pd,
TupleTableSlot slot,
EState estate 
)

Definition at line 3328 of file execMain.c.

References Assert, ExprContext::ecxt_scantuple, ereport, errcode(), errdetail(), errmsg(), ERROR, ExecBuildSlotPartitionKeyDescription(), ExecPartitionCheck(), FormPartitionKeyDatum(), get_partition_for_tuple(), GetPerTupleExprContext, OidIsValid, PARTITION_MAX_KEYS, RelationGetRelationName, RelationGetRelid, PartitionDispatchData::reldesc, result, and ResultRelInfo::ri_PartitionCheck.

Referenced by CopyFrom(), and ExecInsert().

3330 {
3331  int result;
3332  PartitionDispatchData *failed_at;
3333  TupleTableSlot *failed_slot;
3334 
3335  /*
3336  * First check the root table's partition constraint, if any. No point in
3337  * routing the tuple it if it doesn't belong in the root table itself.
3338  */
3339  if (resultRelInfo->ri_PartitionCheck)
3340  ExecPartitionCheck(resultRelInfo, slot, estate);
3341 
3342  result = get_partition_for_tuple(pd, slot, estate,
3343  &failed_at, &failed_slot);
3344  if (result < 0)
3345  {
3346  Relation failed_rel;
3347  Datum key_values[PARTITION_MAX_KEYS];
3348  bool key_isnull[PARTITION_MAX_KEYS];
3349  char *val_desc;
3350  ExprContext *ecxt = GetPerTupleExprContext(estate);
3351 
3352  failed_rel = failed_at->reldesc;
3353  ecxt->ecxt_scantuple = failed_slot;
3354  FormPartitionKeyDatum(failed_at, failed_slot, estate,
3355  key_values, key_isnull);
3356  val_desc = ExecBuildSlotPartitionKeyDescription(failed_rel,
3357  key_values,
3358  key_isnull,
3359  64);
3360  Assert(OidIsValid(RelationGetRelid(failed_rel)));
3361  ereport(ERROR,
3362  (errcode(ERRCODE_CHECK_VIOLATION),
3363  errmsg("no partition of relation \"%s\" found for row",
3364  RelationGetRelationName(failed_rel)),
3365  val_desc ? errdetail("Partition key of the failing row contains %s.", val_desc) : 0));
3366  }
3367 
3368  return result;
3369 }
int errcode(int sqlerrcode)
Definition: elog.c:575
#define PARTITION_MAX_KEYS
int get_partition_for_tuple(PartitionDispatch *pd, TupleTableSlot *slot, EState *estate, PartitionDispatchData **failed_at, TupleTableSlot **failed_slot)
Definition: partition.c:1917
return result
Definition: formatting.c:1633
#define OidIsValid(objectId)
Definition: c.h:538
#define GetPerTupleExprContext(estate)
Definition: executor.h:457
#define ERROR
Definition: elog.h:43
static char * ExecBuildSlotPartitionKeyDescription(Relation rel, Datum *values, bool *isnull, int maxfieldlen)
Definition: execMain.c:3379
void FormPartitionKeyDatum(PartitionDispatch pd, TupleTableSlot *slot, EState *estate, Datum *values, bool *isnull)
Definition: partition.c:1858
int errdetail(const char *fmt,...)
Definition: elog.c:873
#define RelationGetRelationName(relation)
Definition: rel.h:436
#define ereport(elevel, rest)
Definition: elog.h:122
uintptr_t Datum
Definition: postgres.h:372
List * ri_PartitionCheck
Definition: execnodes.h:408
#define Assert(condition)
Definition: c.h:675
TupleTableSlot * ecxt_scantuple
Definition: execnodes.h:197
int errmsg(const char *fmt,...)
Definition: elog.c:797
#define RelationGetRelid(relation)
Definition: rel.h:416
static void ExecPartitionCheck(ResultRelInfo *resultRelInfo, TupleTableSlot *slot, EState *estate)
Definition: execMain.c:1827
ExecRowMark* ExecFindRowMark ( EState estate,
Index  rti,
bool  missing_ok 
)

Definition at line 2354 of file execMain.c.

References elog, ERROR, EState::es_rowMarks, lfirst, NULL, and ExecRowMark::rti.

Referenced by ExecInitLockRows(), ExecInitModifyTable(), and ExecOpenScanRelation().

2355 {
2356  ListCell *lc;
2357 
2358  foreach(lc, estate->es_rowMarks)
2359  {
2360  ExecRowMark *erm = (ExecRowMark *) lfirst(lc);
2361 
2362  if (erm->rti == rti)
2363  return erm;
2364  }
2365  if (!missing_ok)
2366  elog(ERROR, "failed to find ExecRowMark for rangetable index %u", rti);
2367  return NULL;
2368 }
#define ERROR
Definition: elog.h:43
Index rti
Definition: execnodes.h:533
#define NULL
Definition: c.h:229
#define lfirst(lc)
Definition: pg_list.h:106
List * es_rowMarks
Definition: execnodes.h:472
#define elog
Definition: elog.h:219
Datum ExecGetJunkAttribute ( TupleTableSlot slot,
AttrNumber  attno,
bool isNull 
)

Definition at line 248 of file execJunk.c.

References Assert, and slot_getattr().

Referenced by EvalPlanQualFetchRowMarks(), ExecLockRows(), ExecModifyTable(), postgresExecForeignDelete(), and postgresExecForeignUpdate().

250 {
251  Assert(attno > 0);
252 
253  return slot_getattr(slot, attno, isNull);
254 }
#define Assert(condition)
Definition: c.h:675
Datum slot_getattr(TupleTableSlot *slot, int attnum, bool *isnull)
Definition: heaptuple.c:1141
ResultRelInfo* ExecGetTriggerResultRel ( EState estate,
Oid  relid 
)

Definition at line 1379 of file execMain.c.

References EState::es_instrument, EState::es_num_result_relations, EState::es_query_cxt, EState::es_result_relations, EState::es_trig_target_relations, heap_open(), InitResultRelInfo(), lappend(), lfirst, makeNode, MemoryContextSwitchTo(), NoLock, NULL, RelationGetRelid, and ResultRelInfo::ri_RelationDesc.

Referenced by afterTriggerInvokeEvents().

1380 {
1381  ResultRelInfo *rInfo;
1382  int nr;
1383  ListCell *l;
1384  Relation rel;
1385  MemoryContext oldcontext;
1386 
1387  /* First, search through the query result relations */
1388  rInfo = estate->es_result_relations;
1389  nr = estate->es_num_result_relations;
1390  while (nr > 0)
1391  {
1392  if (RelationGetRelid(rInfo->ri_RelationDesc) == relid)
1393  return rInfo;
1394  rInfo++;
1395  nr--;
1396  }
1397  /* Nope, but maybe we already made an extra ResultRelInfo for it */
1398  foreach(l, estate->es_trig_target_relations)
1399  {
1400  rInfo = (ResultRelInfo *) lfirst(l);
1401  if (RelationGetRelid(rInfo->ri_RelationDesc) == relid)
1402  return rInfo;
1403  }
1404  /* Nope, so we need a new one */
1405 
1406  /*
1407  * Open the target relation's relcache entry. We assume that an
1408  * appropriate lock is still held by the backend from whenever the trigger
1409  * event got queued, so we need take no new lock here. Also, we need not
1410  * recheck the relkind, so no need for CheckValidResultRel.
1411  */
1412  rel = heap_open(relid, NoLock);
1413 
1414  /*
1415  * Make the new entry in the right context.
1416  */
1417  oldcontext = MemoryContextSwitchTo(estate->es_query_cxt);
1418  rInfo = makeNode(ResultRelInfo);
1419  InitResultRelInfo(rInfo,
1420  rel,
1421  0, /* dummy rangetable index */
1422  NULL,
1423  estate->es_instrument);
1424  estate->es_trig_target_relations =
1425  lappend(estate->es_trig_target_relations, rInfo);
1426  MemoryContextSwitchTo(oldcontext);
1427 
1428  /*
1429  * Currently, we don't need any index information in ResultRelInfos used
1430  * only for triggers, so no need to call ExecOpenIndices.
1431  */
1432 
1433  return rInfo;
1434 }
void InitResultRelInfo(ResultRelInfo *resultRelInfo, Relation resultRelationDesc, Index resultRelationIndex, Relation partition_root, int instrument_options)
Definition: execMain.c:1299
Relation ri_RelationDesc
Definition: execnodes.h:354
static MemoryContext MemoryContextSwitchTo(MemoryContext context)
Definition: palloc.h:109
MemoryContext es_query_cxt
Definition: execnodes.h:468
#define NoLock
Definition: lockdefs.h:34
ResultRelInfo * es_result_relations
Definition: execnodes.h:441
int es_instrument
Definition: execnodes.h:478
List * lappend(List *list, void *datum)
Definition: list.c:128
List * es_trig_target_relations
Definition: execnodes.h:456
Relation heap_open(Oid relationId, LOCKMODE lockmode)
Definition: heapam.c:1284
int es_num_result_relations
Definition: execnodes.h:442
#define makeNode(_type_)
Definition: nodes.h:557
#define NULL
Definition: c.h:229
#define lfirst(lc)
Definition: pg_list.h:106
#define RelationGetRelid(relation)
Definition: rel.h:416
ExprState* ExecInitCheck ( List qual,
PlanState parent 
)

Definition at line 246 of file execExpr.c.

References Assert, ExecInitExpr(), IsA, make_ands_explicit(), NIL, and NULL.

Referenced by ExecPrepareCheck().

247 {
248  /* short-circuit (here and in ExecCheck) for empty restriction list */
249  if (qual == NIL)
250  return NULL;
251 
252  Assert(IsA(qual, List));
253 
254  /*
255  * Just convert the implicit-AND list to an explicit AND (if there's more
256  * than one entry), and compile normally. Unlike ExecQual, we can't
257  * short-circuit on NULL results, so the regular AND behavior is needed.
258  */
259  return ExecInitExpr(make_ands_explicit(qual), parent);
260 }
#define NIL
Definition: pg_list.h:69
#define IsA(nodeptr, _type_)
Definition: nodes.h:560
Expr * make_ands_explicit(List *andclauses)
Definition: clauses.c:367
#define NULL
Definition: c.h:229
#define Assert(condition)
Definition: c.h:675
ExprState * ExecInitExpr(Expr *node, PlanState *parent)
Definition: execExpr.c:113
Definition: pg_list.h:45
ExprState* ExecInitExpr ( Expr node,
PlanState parent 
)

Definition at line 113 of file execExpr.c.

References EEOP_DONE, ExecInitExprRec(), ExecInitExprSlots(), ExecReadyExpr(), ExprState::expr, ExprEvalPushStep(), makeNode, NULL, ExprEvalStep::opcode, ExprState::resnull, and ExprState::resvalue.

Referenced by ATRewriteTable(), BeginCopyFrom(), build_pertrans_for_aggref(), evaluate_expr(), exec_eval_simple_expr(), ExecIndexBuildScanKeys(), ExecInitCheck(), ExecInitExprList(), ExecInitExprRec(), ExecInitHashJoin(), ExecInitLimit(), ExecInitProjectSet(), ExecInitSampleScan(), ExecInitSubPlan(), ExecInitTableFuncScan(), ExecInitTableFunctionResult(), ExecInitWindowAgg(), ExecPrepareExpr(), get_cast_hashentry(), get_qual_for_range(), MJExamineQuals(), operator_predicate_proof(), prep_domain_constraints(), slot_fill_defaults(), and TidExprListCreate().

114 {
115  ExprState *state;
116  ExprEvalStep scratch;
117 
118  /* Special case: NULL expression produces a NULL ExprState pointer */
119  if (node == NULL)
120  return NULL;
121 
122  /* Initialize ExprState with empty step list */
123  state = makeNode(ExprState);
124  state->expr = node;
125 
126  /* Insert EEOP_*_FETCHSOME steps as needed */
127  ExecInitExprSlots(state, (Node *) node);
128 
129  /* Compile the expression proper */
130  ExecInitExprRec(node, parent, state, &state->resvalue, &state->resnull);
131 
132  /* Finally, append a DONE step */
133  scratch.opcode = EEOP_DONE;
134  ExprEvalPushStep(state, &scratch);
135 
136  ExecReadyExpr(state);
137 
138  return state;
139 }
Definition: nodes.h:509
bool resnull
Definition: execnodes.h:63
Expr * expr
Definition: execnodes.h:83
static void ExecInitExprSlots(ExprState *state, Node *node)
Definition: execExpr.c:2172
static void ExecReadyExpr(ExprState *state)
Definition: execExpr.c:574
#define makeNode(_type_)
Definition: nodes.h:557
#define NULL
Definition: c.h:229
Definition: regguts.h:298
intptr_t opcode
Definition: execExpr.h:227
static void ExprEvalPushStep(ExprState *es, const ExprEvalStep *s)
Definition: execExpr.c:2043
static void ExecInitExprRec(Expr *node, PlanState *parent, ExprState *state, Datum *resv, bool *resnull)
Definition: execExpr.c:589
Datum resvalue
Definition: execnodes.h:64
List* ExecInitExprList ( List nodes,
PlanState parent 
)

Definition at line 266 of file execExpr.c.

References ExecInitExpr(), lappend(), lfirst, NIL, and result.

Referenced by build_pertrans_for_aggref(), ExecInitExprRec(), ExecInitFunctionResultSet(), ExecInitIndexScan(), ExecInitSampleScan(), ExecInitSubPlan(), ExecInitTableFuncScan(), ExecInitTableFunctionResult(), prepare_query_params(), and ValuesNext().

267 {
268  List *result = NIL;
269  ListCell *lc;
270 
271  foreach(lc, nodes)
272  {
273  Expr *e = lfirst(lc);
274 
275  result = lappend(result, ExecInitExpr(e, parent));
276  }
277 
278  return result;
279 }
#define NIL
Definition: pg_list.h:69
return result
Definition: formatting.c:1633
List * lappend(List *list, void *datum)
Definition: list.c:128
#define lfirst(lc)
Definition: pg_list.h:106
e
Definition: preproc-init.c:82
ExprState * ExecInitExpr(Expr *node, PlanState *parent)
Definition: execExpr.c:113
Definition: pg_list.h:45
SetExprState* ExecInitFunctionResultSet ( Expr expr,
ExprContext econtext,
PlanState parent 
)

Definition at line 424 of file execSRF.c.

References FuncExpr::args, OpExpr::args, SetExprState::args, Assert, ExprContext::ecxt_per_query_memory, elog, ERROR, ExecInitExprList(), SetExprState::expr, FmgrInfo::fn_oid, FmgrInfo::fn_retset, SetExprState::func, FuncExpr::funcid, SetExprState::funcReturnsSet, init_sexpr(), FuncExpr::inputcollid, OpExpr::inputcollid, InvalidOid, IsA, makeNode, nodeTag, and OpExpr::opfuncid.

Referenced by ExecInitProjectSet().

426 {
428 
429  state->funcReturnsSet = true;
430  state->expr = expr;
431  state->func.fn_oid = InvalidOid;
432 
433  /*
434  * Initialize metadata. The expression node could be either a FuncExpr or
435  * an OpExpr.
436  */
437  if (IsA(expr, FuncExpr))
438  {
439  FuncExpr *func = (FuncExpr *) expr;
440 
441  state->args = ExecInitExprList(func->args, parent);
442  init_sexpr(func->funcid, func->inputcollid, expr, state, parent,
443  econtext->ecxt_per_query_memory, true, true);
444  }
445  else if (IsA(expr, OpExpr))
446  {
447  OpExpr *op = (OpExpr *) expr;
448 
449  state->args = ExecInitExprList(op->args, parent);
450  init_sexpr(op->opfuncid, op->inputcollid, expr, state, parent,
451  econtext->ecxt_per_query_memory, true, true);
452  }
453  else
454  elog(ERROR, "unrecognized node type: %d",
455  (int) nodeTag(expr));
456 
457  /* shouldn't get here unless the selected function returns set */
458  Assert(state->func.fn_retset);
459 
460  return state;
461 }
FmgrInfo func
Definition: execnodes.h:699
#define IsA(nodeptr, _type_)
Definition: nodes.h:560
List * args
Definition: primnodes.h:457
List * args
Definition: execnodes.h:685
static void init_sexpr(Oid foid, Oid input_collation, Expr *node, SetExprState *sexpr, PlanState *parent, MemoryContext sexprCxt, bool allowSRF, bool needDescForSRF)
Definition: execSRF.c:649
bool fn_retset
Definition: fmgr.h:62
Oid funcid
Definition: primnodes.h:449
#define ERROR
Definition: elog.h:43
bool funcReturnsSet
Definition: execnodes.h:720
List * ExecInitExprList(List *nodes, PlanState *parent)
Definition: execExpr.c:266
Oid opfuncid
Definition: primnodes.h:497
Expr * expr
Definition: execnodes.h:684
#define InvalidOid
Definition: postgres_ext.h:36
Oid fn_oid
Definition: fmgr.h:59
#define makeNode(_type_)
Definition: nodes.h:557
Oid inputcollid
Definition: primnodes.h:456
#define Assert(condition)
Definition: c.h:675
Definition: regguts.h:298
Oid inputcollid
Definition: primnodes.h:501
MemoryContext ecxt_per_query_memory
Definition: execnodes.h:202
#define nodeTag(nodeptr)
Definition: nodes.h:514
#define elog
Definition: elog.h:219
List * args
Definition: primnodes.h:502