PostgreSQL Source Code  git master
nodeIndexonlyscan.h File Reference
#include "access/parallel.h"
#include "nodes/execnodes.h"
Include dependency graph for nodeIndexonlyscan.h:
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Functions

IndexOnlyScanStateExecInitIndexOnlyScan (IndexOnlyScan *node, EState *estate, int eflags)
 
void ExecEndIndexOnlyScan (IndexOnlyScanState *node)
 
void ExecIndexOnlyMarkPos (IndexOnlyScanState *node)
 
void ExecIndexOnlyRestrPos (IndexOnlyScanState *node)
 
void ExecReScanIndexOnlyScan (IndexOnlyScanState *node)
 
void ExecIndexOnlyScanEstimate (IndexOnlyScanState *node, ParallelContext *pcxt)
 
void ExecIndexOnlyScanInitializeDSM (IndexOnlyScanState *node, ParallelContext *pcxt)
 
void ExecIndexOnlyScanReInitializeDSM (IndexOnlyScanState *node, ParallelContext *pcxt)
 
void ExecIndexOnlyScanInitializeWorker (IndexOnlyScanState *node, ParallelWorkerContext *pwcxt)
 

Function Documentation

◆ ExecEndIndexOnlyScan()

void ExecEndIndexOnlyScan ( IndexOnlyScanState node)

Definition at line 365 of file nodeIndexonlyscan.c.

366 {
367  Relation indexRelationDesc;
368  IndexScanDesc indexScanDesc;
369 
370  /*
371  * extract information from the node
372  */
373  indexRelationDesc = node->ioss_RelationDesc;
374  indexScanDesc = node->ioss_ScanDesc;
375 
376  /* Release VM buffer pin, if any. */
377  if (node->ioss_VMBuffer != InvalidBuffer)
378  {
381  }
382 
383  /*
384  * close the index relation (no-op if we didn't open it)
385  */
386  if (indexScanDesc)
387  index_endscan(indexScanDesc);
388  if (indexRelationDesc)
389  index_close(indexRelationDesc, NoLock);
390 }
#define InvalidBuffer
Definition: buf.h:25
void ReleaseBuffer(Buffer buffer)
Definition: bufmgr.c:4573
void index_close(Relation relation, LOCKMODE lockmode)
Definition: indexam.c:158
void index_endscan(IndexScanDesc scan)
Definition: indexam.c:342
#define NoLock
Definition: lockdefs.h:34
struct IndexScanDescData * ioss_ScanDesc
Definition: execnodes.h:1617
Relation ioss_RelationDesc
Definition: execnodes.h:1616

References index_close(), index_endscan(), InvalidBuffer, IndexOnlyScanState::ioss_RelationDesc, IndexOnlyScanState::ioss_ScanDesc, IndexOnlyScanState::ioss_VMBuffer, NoLock, and ReleaseBuffer().

Referenced by ExecEndNode().

◆ ExecIndexOnlyMarkPos()

void ExecIndexOnlyMarkPos ( IndexOnlyScanState node)

Definition at line 400 of file nodeIndexonlyscan.c.

401 {
402  EState *estate = node->ss.ps.state;
403  EPQState *epqstate = estate->es_epq_active;
404 
405  if (epqstate != NULL)
406  {
407  /*
408  * We are inside an EvalPlanQual recheck. If a test tuple exists for
409  * this relation, then we shouldn't access the index at all. We would
410  * instead need to save, and later restore, the state of the
411  * relsubs_done flag, so that re-fetching the test tuple is possible.
412  * However, given the assumption that no caller sets a mark at the
413  * start of the scan, we can only get here with relsubs_done[i]
414  * already set, and so no state need be saved.
415  */
416  Index scanrelid = ((Scan *) node->ss.ps.plan)->scanrelid;
417 
418  Assert(scanrelid > 0);
419  if (epqstate->relsubs_slot[scanrelid - 1] != NULL ||
420  epqstate->relsubs_rowmark[scanrelid - 1] != NULL)
421  {
422  /* Verify the claim above */
423  if (!epqstate->relsubs_done[scanrelid - 1])
424  elog(ERROR, "unexpected ExecIndexOnlyMarkPos call in EPQ recheck");
425  return;
426  }
427  }
428 
430 }
unsigned int Index
Definition: c.h:603
#define ERROR
Definition: elog.h:39
void index_markpos(IndexScanDesc scan)
Definition: indexam.c:372
Assert(fmt[strlen(fmt) - 1] !='\n')
ExecAuxRowMark ** relsubs_rowmark
Definition: execnodes.h:1211
TupleTableSlot ** relsubs_slot
Definition: execnodes.h:1183
bool * relsubs_done
Definition: execnodes.h:1218
struct EPQState * es_epq_active
Definition: execnodes.h:690
Plan * plan
Definition: execnodes.h:1036
EState * state
Definition: execnodes.h:1038
PlanState ps
Definition: execnodes.h:1473

References Assert(), elog(), ERROR, EState::es_epq_active, index_markpos(), IndexOnlyScanState::ioss_ScanDesc, PlanState::plan, ScanState::ps, EPQState::relsubs_done, EPQState::relsubs_rowmark, EPQState::relsubs_slot, IndexOnlyScanState::ss, and PlanState::state.

Referenced by ExecMarkPos().

◆ ExecIndexOnlyRestrPos()

void ExecIndexOnlyRestrPos ( IndexOnlyScanState node)

Definition at line 437 of file nodeIndexonlyscan.c.

438 {
439  EState *estate = node->ss.ps.state;
440  EPQState *epqstate = estate->es_epq_active;
441 
442  if (estate->es_epq_active != NULL)
443  {
444  /* See comments in ExecIndexMarkPos */
445  Index scanrelid = ((Scan *) node->ss.ps.plan)->scanrelid;
446 
447  Assert(scanrelid > 0);
448  if (epqstate->relsubs_slot[scanrelid - 1] != NULL ||
449  epqstate->relsubs_rowmark[scanrelid - 1] != NULL)
450  {
451  /* Verify the claim above */
452  if (!epqstate->relsubs_done[scanrelid - 1])
453  elog(ERROR, "unexpected ExecIndexOnlyRestrPos call in EPQ recheck");
454  return;
455  }
456  }
457 
459 }
void index_restrpos(IndexScanDesc scan)
Definition: indexam.c:396

References Assert(), elog(), ERROR, EState::es_epq_active, index_restrpos(), IndexOnlyScanState::ioss_ScanDesc, PlanState::plan, ScanState::ps, EPQState::relsubs_done, EPQState::relsubs_rowmark, EPQState::relsubs_slot, IndexOnlyScanState::ss, and PlanState::state.

Referenced by ExecRestrPos().

◆ ExecIndexOnlyScanEstimate()

void ExecIndexOnlyScanEstimate ( IndexOnlyScanState node,
ParallelContext pcxt 
)

Definition at line 626 of file nodeIndexonlyscan.c.

628 {
629  EState *estate = node->ss.ps.state;
630 
632  estate->es_snapshot);
634  shm_toc_estimate_keys(&pcxt->estimator, 1);
635 }
Size index_parallelscan_estimate(Relation indexRelation, Snapshot snapshot)
Definition: indexam.c:421
#define shm_toc_estimate_chunk(e, sz)
Definition: shm_toc.h:51
#define shm_toc_estimate_keys(e, cnt)
Definition: shm_toc.h:53
Snapshot es_snapshot
Definition: execnodes.h:615
shm_toc_estimator estimator
Definition: parallel.h:42

References EState::es_snapshot, ParallelContext::estimator, index_parallelscan_estimate(), IndexOnlyScanState::ioss_PscanLen, IndexOnlyScanState::ioss_RelationDesc, ScanState::ps, shm_toc_estimate_chunk, shm_toc_estimate_keys, IndexOnlyScanState::ss, and PlanState::state.

Referenced by ExecParallelEstimate().

◆ ExecIndexOnlyScanInitializeDSM()

void ExecIndexOnlyScanInitializeDSM ( IndexOnlyScanState node,
ParallelContext pcxt 
)

Definition at line 644 of file nodeIndexonlyscan.c.

646 {
647  EState *estate = node->ss.ps.state;
648  ParallelIndexScanDesc piscan;
649 
650  piscan = shm_toc_allocate(pcxt->toc, node->ioss_PscanLen);
652  node->ioss_RelationDesc,
653  estate->es_snapshot,
654  piscan);
655  shm_toc_insert(pcxt->toc, node->ss.ps.plan->plan_node_id, piscan);
656  node->ioss_ScanDesc =
658  node->ioss_RelationDesc,
659  node->ioss_NumScanKeys,
660  node->ioss_NumOrderByKeys,
661  piscan);
662  node->ioss_ScanDesc->xs_want_itup = true;
664 
665  /*
666  * If no run-time keys to calculate or they are ready, go ahead and pass
667  * the scankeys to the index AM.
668  */
669  if (node->ioss_NumRuntimeKeys == 0 || node->ioss_RuntimeKeysReady)
671  node->ioss_ScanKeys, node->ioss_NumScanKeys,
673 }
IndexScanDesc index_beginscan_parallel(Relation heaprel, Relation indexrel, int nkeys, int norderbys, ParallelIndexScanDesc pscan)
Definition: indexam.c:507
void index_parallelscan_initialize(Relation heapRelation, Relation indexRelation, Snapshot snapshot, ParallelIndexScanDesc target)
Definition: indexam.c:456
void index_rescan(IndexScanDesc scan, ScanKey keys, int nkeys, ScanKey orderbys, int norderbys)
Definition: indexam.c:316
void shm_toc_insert(shm_toc *toc, uint64 key, void *address)
Definition: shm_toc.c:171
void * shm_toc_allocate(shm_toc *toc, Size nbytes)
Definition: shm_toc.c:88
bool ioss_RuntimeKeysReady
Definition: execnodes.h:1614
struct ScanKeyData * ioss_ScanKeys
Definition: execnodes.h:1608
struct ScanKeyData * ioss_OrderByKeys
Definition: execnodes.h:1610
shm_toc * toc
Definition: parallel.h:45
int plan_node_id
Definition: plannodes.h:151
Relation ss_currentRelation
Definition: execnodes.h:1474

References EState::es_snapshot, index_beginscan_parallel(), index_parallelscan_initialize(), index_rescan(), InvalidBuffer, IndexOnlyScanState::ioss_NumOrderByKeys, IndexOnlyScanState::ioss_NumRuntimeKeys, IndexOnlyScanState::ioss_NumScanKeys, IndexOnlyScanState::ioss_OrderByKeys, IndexOnlyScanState::ioss_PscanLen, IndexOnlyScanState::ioss_RelationDesc, IndexOnlyScanState::ioss_RuntimeKeysReady, IndexOnlyScanState::ioss_ScanDesc, IndexOnlyScanState::ioss_ScanKeys, IndexOnlyScanState::ioss_VMBuffer, PlanState::plan, Plan::plan_node_id, ScanState::ps, shm_toc_allocate(), shm_toc_insert(), IndexOnlyScanState::ss, ScanState::ss_currentRelation, PlanState::state, ParallelContext::toc, and IndexScanDescData::xs_want_itup.

Referenced by ExecParallelInitializeDSM().

◆ ExecIndexOnlyScanInitializeWorker()

void ExecIndexOnlyScanInitializeWorker ( IndexOnlyScanState node,
ParallelWorkerContext pwcxt 
)

Definition at line 695 of file nodeIndexonlyscan.c.

697 {
698  ParallelIndexScanDesc piscan;
699 
700  piscan = shm_toc_lookup(pwcxt->toc, node->ss.ps.plan->plan_node_id, false);
701  node->ioss_ScanDesc =
703  node->ioss_RelationDesc,
704  node->ioss_NumScanKeys,
705  node->ioss_NumOrderByKeys,
706  piscan);
707  node->ioss_ScanDesc->xs_want_itup = true;
708 
709  /*
710  * If no run-time keys to calculate or they are ready, go ahead and pass
711  * the scankeys to the index AM.
712  */
713  if (node->ioss_NumRuntimeKeys == 0 || node->ioss_RuntimeKeysReady)
715  node->ioss_ScanKeys, node->ioss_NumScanKeys,
717 }
void * shm_toc_lookup(shm_toc *toc, uint64 key, bool noError)
Definition: shm_toc.c:232

References index_beginscan_parallel(), index_rescan(), IndexOnlyScanState::ioss_NumOrderByKeys, IndexOnlyScanState::ioss_NumRuntimeKeys, IndexOnlyScanState::ioss_NumScanKeys, IndexOnlyScanState::ioss_OrderByKeys, IndexOnlyScanState::ioss_RelationDesc, IndexOnlyScanState::ioss_RuntimeKeysReady, IndexOnlyScanState::ioss_ScanDesc, IndexOnlyScanState::ioss_ScanKeys, PlanState::plan, Plan::plan_node_id, ScanState::ps, shm_toc_lookup(), IndexOnlyScanState::ss, ScanState::ss_currentRelation, ParallelWorkerContext::toc, and IndexScanDescData::xs_want_itup.

Referenced by ExecParallelInitializeWorker().

◆ ExecIndexOnlyScanReInitializeDSM()

void ExecIndexOnlyScanReInitializeDSM ( IndexOnlyScanState node,
ParallelContext pcxt 
)

Definition at line 682 of file nodeIndexonlyscan.c.

684 {
686 }
void index_parallelrescan(IndexScanDesc scan)
Definition: indexam.c:489

References index_parallelrescan(), and IndexOnlyScanState::ioss_ScanDesc.

Referenced by ExecParallelReInitializeDSM().

◆ ExecInitIndexOnlyScan()

IndexOnlyScanState* ExecInitIndexOnlyScan ( IndexOnlyScan node,
EState estate,
int  eflags 
)

Definition at line 473 of file nodeIndexonlyscan.c.

474 {
475  IndexOnlyScanState *indexstate;
476  Relation currentRelation;
477  LOCKMODE lockmode;
478  TupleDesc tupDesc;
479 
480  /*
481  * create state structure
482  */
483  indexstate = makeNode(IndexOnlyScanState);
484  indexstate->ss.ps.plan = (Plan *) node;
485  indexstate->ss.ps.state = estate;
486  indexstate->ss.ps.ExecProcNode = ExecIndexOnlyScan;
487 
488  /*
489  * Miscellaneous initialization
490  *
491  * create expression context for node
492  */
493  ExecAssignExprContext(estate, &indexstate->ss.ps);
494 
495  /*
496  * open the scan relation
497  */
498  currentRelation = ExecOpenScanRelation(estate, node->scan.scanrelid, eflags);
499 
500  indexstate->ss.ss_currentRelation = currentRelation;
501  indexstate->ss.ss_currentScanDesc = NULL; /* no heap scan here */
502 
503  /*
504  * Build the scan tuple type using the indextlist generated by the
505  * planner. We use this, rather than the index's physical tuple
506  * descriptor, because the latter contains storage column types not the
507  * types of the original datums. (It's the AM's responsibility to return
508  * suitable data anyway.)
509  */
510  tupDesc = ExecTypeFromTL(node->indextlist);
511  ExecInitScanTupleSlot(estate, &indexstate->ss, tupDesc,
512  &TTSOpsVirtual);
513 
514  /*
515  * We need another slot, in a format that's suitable for the table AM, for
516  * when we need to fetch a tuple from the table for rechecking visibility.
517  */
518  indexstate->ioss_TableSlot =
520  RelationGetDescr(currentRelation),
521  table_slot_callbacks(currentRelation));
522 
523  /*
524  * Initialize result type and projection info. The node's targetlist will
525  * contain Vars with varno = INDEX_VAR, referencing the scan tuple.
526  */
527  ExecInitResultTypeTL(&indexstate->ss.ps);
529 
530  /*
531  * initialize child expressions
532  *
533  * Note: we don't initialize all of the indexorderby expression, only the
534  * sub-parts corresponding to runtime keys (see below).
535  */
536  indexstate->ss.ps.qual =
537  ExecInitQual(node->scan.plan.qual, (PlanState *) indexstate);
538  indexstate->recheckqual =
539  ExecInitQual(node->recheckqual, (PlanState *) indexstate);
540 
541  /*
542  * If we are just doing EXPLAIN (ie, aren't going to run the plan), stop
543  * here. This allows an index-advisor plugin to EXPLAIN a plan containing
544  * references to nonexistent indexes.
545  */
546  if (eflags & EXEC_FLAG_EXPLAIN_ONLY)
547  return indexstate;
548 
549  /* Open the index relation. */
550  lockmode = exec_rt_fetch(node->scan.scanrelid, estate)->rellockmode;
551  indexstate->ioss_RelationDesc = index_open(node->indexid, lockmode);
552 
553  /*
554  * Initialize index-specific scan state
555  */
556  indexstate->ioss_RuntimeKeysReady = false;
557  indexstate->ioss_RuntimeKeys = NULL;
558  indexstate->ioss_NumRuntimeKeys = 0;
559 
560  /*
561  * build the index scan keys from the index qualification
562  */
563  ExecIndexBuildScanKeys((PlanState *) indexstate,
564  indexstate->ioss_RelationDesc,
565  node->indexqual,
566  false,
567  &indexstate->ioss_ScanKeys,
568  &indexstate->ioss_NumScanKeys,
569  &indexstate->ioss_RuntimeKeys,
570  &indexstate->ioss_NumRuntimeKeys,
571  NULL, /* no ArrayKeys */
572  NULL);
573 
574  /*
575  * any ORDER BY exprs have to be turned into scankeys in the same way
576  */
577  ExecIndexBuildScanKeys((PlanState *) indexstate,
578  indexstate->ioss_RelationDesc,
579  node->indexorderby,
580  true,
581  &indexstate->ioss_OrderByKeys,
582  &indexstate->ioss_NumOrderByKeys,
583  &indexstate->ioss_RuntimeKeys,
584  &indexstate->ioss_NumRuntimeKeys,
585  NULL, /* no ArrayKeys */
586  NULL);
587 
588  /*
589  * If we have runtime keys, we need an ExprContext to evaluate them. The
590  * node's standard context won't do because we want to reset that context
591  * for every tuple. So, build another context just like the other one...
592  * -tgl 7/11/00
593  */
594  if (indexstate->ioss_NumRuntimeKeys != 0)
595  {
596  ExprContext *stdecontext = indexstate->ss.ps.ps_ExprContext;
597 
598  ExecAssignExprContext(estate, &indexstate->ss.ps);
599  indexstate->ioss_RuntimeContext = indexstate->ss.ps.ps_ExprContext;
600  indexstate->ss.ps.ps_ExprContext = stdecontext;
601  }
602  else
603  {
604  indexstate->ioss_RuntimeContext = NULL;
605  }
606 
607  /*
608  * all done.
609  */
610  return indexstate;
611 }
ExprState * ExecInitQual(List *qual, PlanState *parent)
Definition: execExpr.c:214
void ExecAssignScanProjectionInfoWithVarno(ScanState *node, int varno)
Definition: execScan.c:284
const TupleTableSlotOps TTSOpsVirtual
Definition: execTuples.c:83
void ExecInitScanTupleSlot(EState *estate, ScanState *scanstate, TupleDesc tupledesc, const TupleTableSlotOps *tts_ops)
Definition: execTuples.c:1812
void ExecInitResultTypeTL(PlanState *planstate)
Definition: execTuples.c:1756
TupleDesc ExecTypeFromTL(List *targetList)
Definition: execTuples.c:1939
TupleTableSlot * ExecAllocTableSlot(List **tupleTable, TupleDesc desc, const TupleTableSlotOps *tts_ops)
Definition: execTuples.c:1172
void ExecAssignExprContext(EState *estate, PlanState *planstate)
Definition: execUtils.c:488
Relation ExecOpenScanRelation(EState *estate, Index scanrelid, int eflags)
Definition: execUtils.c:702
static RangeTblEntry * exec_rt_fetch(Index rti, EState *estate)
Definition: executor.h:586
#define EXEC_FLAG_EXPLAIN_ONLY
Definition: executor.h:65
Relation index_open(Oid relationId, LOCKMODE lockmode)
Definition: indexam.c:132
int LOCKMODE
Definition: lockdefs.h:26
static TupleTableSlot * ExecIndexOnlyScan(PlanState *pstate)
void ExecIndexBuildScanKeys(PlanState *planstate, Relation index, List *quals, bool isorderby, ScanKey *scanKeys, int *numScanKeys, IndexRuntimeKeyInfo **runtimeKeys, int *numRuntimeKeys, IndexArrayKeyInfo **arrayKeys, int *numArrayKeys)
#define makeNode(_type_)
Definition: nodes.h:176
#define INDEX_VAR
Definition: primnodes.h:224
#define RelationGetDescr(relation)
Definition: rel.h:530
List * es_tupleTable
Definition: execnodes.h:660
TupleTableSlot * ioss_TableSlot
Definition: execnodes.h:1618
ExprState * recheckqual
Definition: execnodes.h:1607
ExprContext * ioss_RuntimeContext
Definition: execnodes.h:1615
IndexRuntimeKeyInfo * ioss_RuntimeKeys
Definition: execnodes.h:1612
List * indexqual
Definition: plannodes.h:494
List * recheckqual
Definition: plannodes.h:495
List * indextlist
Definition: plannodes.h:497
List * indexorderby
Definition: plannodes.h:496
ExprState * qual
Definition: execnodes.h:1057
ExprContext * ps_ExprContext
Definition: execnodes.h:1075
ExecProcNodeMtd ExecProcNode
Definition: execnodes.h:1042
struct TableScanDescData * ss_currentScanDesc
Definition: execnodes.h:1475
Index scanrelid
Definition: plannodes.h:387
const TupleTableSlotOps * table_slot_callbacks(Relation relation)
Definition: tableam.c:58

References EState::es_tupleTable, EXEC_FLAG_EXPLAIN_ONLY, exec_rt_fetch(), ExecAllocTableSlot(), ExecAssignExprContext(), ExecAssignScanProjectionInfoWithVarno(), ExecIndexBuildScanKeys(), ExecIndexOnlyScan(), ExecInitQual(), ExecInitResultTypeTL(), ExecInitScanTupleSlot(), ExecOpenScanRelation(), PlanState::ExecProcNode, ExecTypeFromTL(), index_open(), INDEX_VAR, IndexOnlyScan::indexid, IndexOnlyScan::indexorderby, IndexOnlyScan::indexqual, IndexOnlyScan::indextlist, IndexOnlyScanState::ioss_NumOrderByKeys, IndexOnlyScanState::ioss_NumRuntimeKeys, IndexOnlyScanState::ioss_NumScanKeys, IndexOnlyScanState::ioss_OrderByKeys, IndexOnlyScanState::ioss_RelationDesc, IndexOnlyScanState::ioss_RuntimeContext, IndexOnlyScanState::ioss_RuntimeKeys, IndexOnlyScanState::ioss_RuntimeKeysReady, IndexOnlyScanState::ioss_ScanKeys, IndexOnlyScanState::ioss_TableSlot, makeNode, PlanState::plan, ScanState::ps, PlanState::ps_ExprContext, PlanState::qual, IndexOnlyScanState::recheckqual, IndexOnlyScan::recheckqual, RelationGetDescr, RangeTblEntry::rellockmode, IndexOnlyScan::scan, Scan::scanrelid, IndexOnlyScanState::ss, ScanState::ss_currentRelation, ScanState::ss_currentScanDesc, PlanState::state, table_slot_callbacks(), and TTSOpsVirtual.

Referenced by ExecInitNode().

◆ ExecReScanIndexOnlyScan()

void ExecReScanIndexOnlyScan ( IndexOnlyScanState node)

Definition at line 330 of file nodeIndexonlyscan.c.

331 {
332  /*
333  * If we are doing runtime key calculations (ie, any of the index key
334  * values weren't simple Consts), compute the new key values. But first,
335  * reset the context so we don't leak memory as each outer tuple is
336  * scanned. Note this assumes that we will recalculate *all* runtime keys
337  * on each call.
338  */
339  if (node->ioss_NumRuntimeKeys != 0)
340  {
341  ExprContext *econtext = node->ioss_RuntimeContext;
342 
343  ResetExprContext(econtext);
344  ExecIndexEvalRuntimeKeys(econtext,
345  node->ioss_RuntimeKeys,
346  node->ioss_NumRuntimeKeys);
347  }
348  node->ioss_RuntimeKeysReady = true;
349 
350  /* reset index scan */
351  if (node->ioss_ScanDesc)
353  node->ioss_ScanKeys, node->ioss_NumScanKeys,
355 
356  ExecScanReScan(&node->ss);
357 }
void ExecScanReScan(ScanState *node)
Definition: execScan.c:298
#define ResetExprContext(econtext)
Definition: executor.h:543
void ExecIndexEvalRuntimeKeys(ExprContext *econtext, IndexRuntimeKeyInfo *runtimeKeys, int numRuntimeKeys)

References ExecIndexEvalRuntimeKeys(), ExecScanReScan(), index_rescan(), IndexOnlyScanState::ioss_NumOrderByKeys, IndexOnlyScanState::ioss_NumRuntimeKeys, IndexOnlyScanState::ioss_NumScanKeys, IndexOnlyScanState::ioss_OrderByKeys, IndexOnlyScanState::ioss_RuntimeContext, IndexOnlyScanState::ioss_RuntimeKeys, IndexOnlyScanState::ioss_RuntimeKeysReady, IndexOnlyScanState::ioss_ScanDesc, IndexOnlyScanState::ioss_ScanKeys, ResetExprContext, and IndexOnlyScanState::ss.

Referenced by ExecReScan().