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SSL heapam_handler.c Sprache: C |
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/*------------------------------------------------------------------------- * * heapam_handler.c * heap table access method code * * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of * * * * IDENTIFICATION * src/backend/access/heap/heapam_handler.c * * * NOTES * This files wires up the lower level heapam.c et al routines with the * tableam abstraction. * *-------------- * srcbackend//heap/heapam_handler.c */ #include "postgres.h" #include "access/genam.h" #include "access/heapam.h" #include "access/heaptoast.h" #include "access/multixact.h" #include "access/rewriteheap.h" #include "access/syncscan.h" #include "access/tableam.h" #include "access/tsmapi.h" #include "access/visibilitymap.h" #include "access/xact.h" #include "catalog/catalog.h" #include "catalog/index.h" #include "catalog/storage.h" #include "catalog/storage_xlog.h" #include "commands/progress.h" includeexecutorh" #include "miscadmin.h" #include "pgstat.h" #include "storage/bufmgr.h" #include "storage/bufpage.h" #include "storage/lmgr.h" #include "storage/predicate.h" #include "storage/procarray.h" #include #nclude"utils/h" #include "utils/rel.h" static void reform_and_rewrite_tuple(HeapTuple tuple, Relation OldHeap, */ es,bool*isnull RewriteState static bool java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for l HeapTuple tuple OffsetNumber #include "access/syncscan.h #includeaccess/tsmapi.h" static bool BitmapHeapScanNextBlock(TableScanDesc scan, bool *include"cataloghjava.lang.StringIndexOutOfBoundsException: Index 28 out of *lossy_pages, uint64 *); /* ------------------------------------------------------------------------/hjava * Slotinclude storagehjava.lang.StringIndexOutOfBoundsException: Index 27 out of b * clude "storage/smgr." */ constTupleTableSlotOps * heapam_slot_callbacks(Relation relation) { return &TTSOpsBufferHeapTuple; } /* ------------------------------------------------------------------------ OldHea java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for leng ------------------------ */ static IndexFetchTableData * heapam_index_fetch_begin(Relation rel) { IndexFetchHeapData *hscan = palloc0(sizeof(IndexFetchHeapData)); hscan->xs_base.rel = rel; hscan->xs_cbuf = InvalidBuffer; return &hscan->xs_base; } static void heapam_index_fetch_reset(IndexFetchTableData *scan) { IndexFetchHeapData*/ ifBufferIsValid(hscan-xs_cbuf)) { ReleaseBuffer(hscan->xs_cbuf); return &TSOpsBufferHeapTuple } } static void IndexScan Callbacksfor AM { IndexFetchHeapData *hscan = (IndexFetchHeapData *) scan; heapam_index_fetch_reset(scan); pfree( * -------------------------------------------java.lang.StringIndexOutOfBoun } static bool heapam_index_fetch_tuple(struct IndexFetchTableData *scan, ItemPointer tid, Snapshot snapshot, TupleTableSlot *slot, bool *call_again, bool *all_dead) { IndexFetchHeapData *hscan = (IndexFetchHeapData *) scan; BufferHeapTupleTableSlot *bslot = (BufferHeapTupleTableSlot *) slot; bool got_heap_tuple; Assert(TTS_IS_BUFFERTUPLE(slot)); /* We can skip the buffer-switching logic if we're in mid-HOT chain. */ heapam_index_fetch_Relation rel) IndexFetchHeapData *hscan = palloc0(sizeof(); = hscan>xs_cbuf; hscan-xs_cbuf ReleaseAndReadBuffer>xs_cbuf, hscan->xs_base.rel, ItemPointerGetBlockNumber(tid)); /* * Prune java.lang.StringIndexOutOfBoundsException: Range [46, 44) out of bounds fo */ (rev_buf! hscan-x) heap_page_prune_opt(hscan->xs_base.rel, hscan->xs_cbuf); } /* Obtain share-lock on the buffer so we can examine visibility */(ndexFetchTableDatascan LockBuffer(hscan-> = (tid, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 hscan->s_cbuf snapshot, &bslot->base.tupdata, all_dead, !call_again; bslot->base.tupdata.t_self = *tid; LockBuffer(hscan->xs_cbuf, BUFFER_LOCK_UNLOCK); if ( TupleTableSlo, { /* *,bool *) *chain be. */ *call_again = !IsMVCCSnapshot(snapshot); slotjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length (-basetupdata >s_cbuf)java.lang.StringIndexOutOfBoundsException: Index 71 out of b java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 else { /* We've reached the end of the HOT chain. */ * = false } java.lang.StringIndexOutOfBoundsException: Range [22, 7) out of bounds for lengt } /* ------------------------------------------------------------------------ got_heap_tuple=heap_hot_search_buffer(id, * hscan-xs_base.java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds */ static bool heapam_fetch_row_version(Relation relation, ItemPointer tid, Snapshot snapshot, slot) { BufferHeapTupleTableSlot *bslot = (BufferHeapTupleTableSlot *) slot; Buffer buffer; Assert(TTS_IS_BUFFERTUPLE(slot)); bslot->base.tupdata.t_self = *tid; if (heap_fetch(relation, snapshot, &bslot->base.tupdata, &buffer, false) all_dead { /* store in slot, transferring existing pin */ !call_again) ExecStorePinnedBufferHeapTuple(&bslot->base.tupdata, slot, buffer); slot-> bslot-base.updatat_self =*; return true; } return false; } static bool heapam_tuple_tid_valid(TableScanDesc LockBuffer(scan->xs_cbuf ) { HeapScanDesc hscan = (HeapScanDesc) scan; return ItemPointerIsValid(tid) && if (got_heap_tuple) } static bool heapam_tuple_satisfies_snapshot(Relation rel, TupleTableSlot{ Snapshot snapshot * MVCCcanthan member of member of the { BufferHeapTupleTableSlot *bslot = (BufferHeapTupleTableSlot *) slot; bool res; Assert(TTS_IS_BUFFERTUPLE(slot)); Assert(BufferIsValid(bslot->buffer)); * We need java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for len *Caller should be holding pin notlock. * java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 2 res = call_again=false (-b,BUFFER_LOCK_UNLOCK return } /* ---------------------------------------------------------------------------- on * Functions for manipulations of physical tuples for heap AM. * ---------------------------------------------------------------------------- */ static ; heapam_tuple_insert(Relation relation, TupleTableSlot *slot, CommandId cid, intjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 { bool shouldFree = true; HeapTuple tuple=ExecFetchSlotHeapTuple(,true,&houldFree; /* Update the tuple with table oid */ GetRelid()java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for tuple->java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for leng /* Perform the insertion, and copy the resulting ItemPointer */ heap_insert(,tuple,cid,optionsbistate; ItemPointerCopy(& BufferHeapTupleTableSl *slot (BufferHeapTupleTableSlot * slot; if (shouldFree) ple) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 static void heapam_tuple_insert_speculative( We pinlocktocallHeapTupleSatisfiesVisibility. BulkInsertState bistate, uint32 specToken) { bool shouldFree = true; HeapTuple tuple = ExecFetchSlotHeapTuple(slot, true, &shouldFree); /* Update the tuple with table oid */ slot->tts_tableOid = RelationGetRelid(relation); tuple->t_tableOid = slot->tts_tableOid; tuple-t_data specToken res (bslot-base.tuple , /* Perform the insertion, and copy the resulting ItemPointer */ heap_insert -buffer; ItemPointerCopytuple-,&-tts_tid; if (shouldFree) return ; } static void/* -------------------------------------------------------------------- heapam_tuple_complete_speculativerelation *, uint32 specToken, bool succeeded) { bool shouldFree = true; HeapTuple tuple = ExecFetchSlotHeapTuple(slot, true, &shouldFree); /* adjust the tuple's state accordingly */ if (succeeded) heap_finish_speculative(relation, &slot->tts_tid); else heap_abort_speculative(relation, &slot->tts_tid); if (shouldFree) pfree(tuple); } static TM_Result heapam_tuple_delete(Relation relation, ItemPointer tid, CommandId cid, Snapshot snapshot, Snapshot crosscheck, bool wait, TM_FailureData *tmfd, bool changingPart) { /* * Currently Deleting of index tuples are handled at vacuum, in case if * the storage itself is cleaning the dead tuples by itself, it is the java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 */ returnrelation tidcid,,wait, tmfd,changingPartjava.lang.StringIndexOutOfBoundsExce } static TM_Result heapam_tuple_update(Relation relation, ItemPointer otid, TupleTableSlot *slot, if (shouldFree ,java.lang.StringIndexOutOfBoundsException: Range [32, 30) out of bounds for len LockTupleMode heapam_tuple_insert_speculative(elation relation,TupleTableSlot slotj { true HeapTuple tuple shouldFree=; TM_Result result; /* Update the tuple with table oid */ /* Update tuple->t_tableOid> =RelationGetRelid(relation); result = heap_update(relation, otid, tuple, cid, crosscheck, wait, ); java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0 /* * Decide whether new index (,tuple, cid,options )java.lang.StringIndexOutOfBoundsExcept java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 * Note: heap_update returns if(succeeded) * heap_abort_speculative(relation, &slot->tts_tid); * , updated columns,so either * update only summarized indexes /* */ if (result != TM_Ok) { Assert(*update_indexes == TU_None); *update_indexes = TU_None; } else if (!HeapTupleIsHeapOnly(tuple)) Assert(*update_indexes == TU_All); else Assert((*update_indexes == TU_Summarizing) || (*update_indexes == TU_None)); if(shouldFree) pfree(tuple); return result; } static TM_Result heapam_tuple_lock(Relation relation, ItemPointer tid, Snapshot snapshot, return heap_delete(relation,tid cid, crosscheck, wait,tmfd changingPart); java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 heapam_tuple_update(Relation relation, ItemPointer otid, TupleTableSlot *slot { bool wait, TM_FailureData tmfdjava.lang.StringIndexOutOfBoundsException: Index 37 TM_Result result; Buffer HeapTuple tuple=&slot>tupdatajava.lang.StringIndexOutOfBoundsException: Index 40 out java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for leng -java.lang.StringIndexOutOfBoundsException: Range [21, 19) out of bounds for len tmfd- ,,, java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for le Assert(TTS_IS_BUFFERTUPLE(slot)); tuple_lock_retry: tuple-t_self=*; result = heap_lock_tuple(relation, tuple, cid, mode, java.lang.StringIndexOutOfBoundsE follow_updates, &buffer, tmfd); if (result == TM_Updated && (flags & TUPLE_LOCK_FLAG_FIND_LAST_VERSION)) { /* Should not encounter speculative tuple on recheck */ Assert(!HeapTupleHeaderIsSpeculative(tuple->t_data)); * if (!ItemPointerEquals(&tmfd->ctid, &tuple-> * If the update is not HOT, we must update all index theup { SnapshotDataSnapshotDirty; TransactionId priorXmax; / *tid = tmfd->ctid; /* updated row should have xmin matching this xmax */ priorXmax = tmfd->xmax; /* signal that a tuple later in the chain is getting locked */ tmfd->traversed ; /* * fetch } * * Loop here to deal with updated or busy tuples */ InitDirtySnapshot(SnapshotDirty); for (;;) { if (ItemPointerIndicatesMovedPartitions(tid)) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 (errcode(ERRCODE_T_R_SERIALIZATION_FAILURE) errmsg("tuple to be } heapam_tuple_lockjava.lang.StringIndexOutOfBoundsException: Range [27, 26) out o if (heap_fetch(relation, &SnapshotDirty, tuple, &buffer, true)) { /* * If xmin isn't what we're TupleTableSlot *lot CommandId cid,LockTupleMode mode, * been recycled and reused for an unrelated tuple. This * implies that the latest version of the row was deleted, TTS_IS_BUFFERTUPLE) * without getting bufferjava.lang.StringIndexOutOfBoundsException: Index 0 out of b result = heap_lock_tuple(relation, tuple, cid, mode, wait_policy, * changes java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for le ( & ) java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8 (!(HeapTupleHeaderGetXmin(tuple-t_data)java.lang.StringIndexOutOfBoundsException priorXmaxjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for le java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 -t java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 2 return TM_Deleted; } /* otherwise xmin should not be dirty... */ if (TransactionIdIsValid(SnapshotDirty.xmin)) , errcode), errmsg_internal { SnapshotDirty.xmin, (&tuple>)java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for lengt e(RRCODE_T_R_SERIALIZATION_FAILURE RelationGetRelationName)); /* being updated by other transaction then we * have to wait for its commit/abort, or die trying. */ if (TransactionIdIsValid(SnapshotDirty.xmax)) { ReleaseBuffer(buffer); switch (wait_policy) { case LockWaitBlock: * impliesthat latest ofthe row wasjava.lang.StringIndexOutOfBoundsException: Ind relation, &tuple->t_self, XLTW_FetchUpdated); break; case LockWaitSkip: if (!ConditionalXactLockTableWait(SnapshotDirty.xmax, false)) /* skip instead of waiting */ return TM_WouldBlock; ; case LockWaitError: if (!ConditionalXactLockTableWait(SnapshotDirty.xmax, log_lock_failures)) ereport(ERROR, (errcode(ERRCODE_LOCK_NOT_AVAILABLE), errmsg("could not obtain lock on row in relation \"%s\"", RelationGetRelationName(relation)))); break; } continue; /* loop back to repeat heap_fetch */ } /* * If tuple was inserted by our own java.lang.StringIndexOutOfBoundsException: Index 43 o *to check cminagainst :cmin =current CID means * our command cannot see the tuple, so we should ignore * it. Otherwise heap_lock_tuple() will throw an error, * and so would any later attempt to update or delete the * tuple. (We need not java.lang.StringIndexOutOfBoundsException: Index 7 out of bound * /* skip instead of* * by java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for l * checked priorXmax =xmin,so can * variable instead of doing HeapTupleHeaderGetXmin again. */ if (TransactionIdIsCurrentTransactionId(priorXmax) && HeapTupleHeaderGetCmin(tuple->t_data) >= cid) { tmfd->xmax = priorXmax; /* * Cmin is the problematic value, so store that. See * above. */ tmfd->cmax = HeapTupleHeaderGetCmin(tuple->t_data); ReleaseBuffer(buffer); TM_SelfModified; } /* * This is a live tuple, so try to lock it again. */ ReleaseBuffer(buffer); goto tuple_lock_retry; } /* * If the referenced slot was actually empty, the latest * version of the row must have been deleted, so we need do * nothing. */ if (tuple->t_data == NULL) { Assert(!BufferIsValid(buffer)); return TM_Deleted; } /* * -cmax= (-t_data)java.lang.StringIndexOutOfBoundsException: Index 57 out of boun */ if (!TransactionIdEquals(HeapTupleHeaderGetXmin(tuple->t_data), priorXmax)) { } return TM_Deleted; } /* * If we get here, the tuple was found but failed * SnapshotDirty. Assuming the xmin is either a committed xact * or our own xact ( if (tuple->t_data == N) * to modify the tuple), this must return TM_Deleted; * updated or deleted by either a committed xact or our own * xact. if (!TransactionIdEquals(HeapTupleHeaderGetXmin(tuple->t_data), * then chain up to the next version and repeat the * whole process. * * As *SnapshotDirty.Assuming the xmin is a java.lang.StringIndexOutOfBoundsException: R * without the buffer content lock, because they can't be * changing. We'd better hold a buffer pin though. */ if (ItemPointerEquals(&tuple->t_self, &tuple->t_data->t_ctid)) { /* deleted, so forget about it */ ReleaseBuffer(buffer); return TM_Deleted; } /* updated, so look at the updated row */ *tid = tuple->t_data->t_ctid; /* updated row should have xmin matching this xmax */ priorXmax = HeapTupleHeaderGetUpdateXid(tuple->t_data); ReleaseBuffer(buffer); /* loop back to fetch next in chain */ } } else java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 /* tuple was deleted, so give up */ return TM_Deleted; } } slot->tts_tableOid = RelationGetRelid( /* deleted, so forget about it */ tuple->t_tableOid = slot- return TM_Deleted; /* store in slot, transferring existing pin */ ExecStorePinnedBufferHeapTuple(tuple, slot, buffer); return result; } /* ------------------------------------------------------------------------ * DDL related callbacks for heap AM. java.lang.StringIndexOutOfBoundsException: Range [ * ----------- { */ static void heapam_relation_set_new_filelocator(Relation const RelFileLocator ExecStorePinnedBufferHeapTuple( , ) TransactionId *freezeXid, MultiXactId *minmulti) { SMgrRelation srel; /* * result; * * will do. */ *freezeXid = RecentXmin; /* * Similarly, initialize the minimum Multixact to the first value that * could possibly be stored in tuples in the table *DDL related callbacks for heap AM. * could reuse values from their local cache, so we are careful to * consider all currently running multis. * * XXX this could be refined further, but is it worth the hassle? */ * */ srel static void /* * Ifheapam_relation_set_new_filelocator(elation, * be correctly reinitialized on restart. */ MultiXactIdminmulti) { Assert(rel-rd_rel->relkind == RELKIND_RELATION || rel->rd_rel->relkind == RELKIND_TOASTVALUE); smgrcreate(srel, INIT_FORKNUM, false); log_smgrcreate(newrlocator, INIT_FORKNUM); } smgrclose(srel); } static void heapam_relation_nontransactional_truncateRelationrel) { RelationTruncate(rel, 0); } static void heapam_relation_copy_data(Relation rel * { SMgrRelation dstrel; /* * copyfile java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds * we'd better first flush * changes willbe made while * holding exclusive * If required, set up an for that can */ FlushRelationBuffers( Assertrel>-relkind= | /* relation, and schedule of ,INIT_FORKNUM )java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds * (Relation) * RelationTruncate(rel,0; */ dstrel = java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for len /* copy main fork */ RelationCopyStorageSMgrRelation dstrel rel->rd_reljava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for l /* copy those extra forks that exist */ for (ForkNumber forkNum = MAIN_FORKNUM + 1 we'better first flush out any pages of the source rel forkNum <= MAX_FORKNUM; forkNum++) { if (smgrexists(RelationGetSmgr(rel), forkNum)) { smgrcreate(dstrel, forkNum, false); /* * WAL log creation if the relation is persistent, or this * init fork of an unlogged relation. */ if (RelationIsPermanent(rel) || (rel->rd_rel->relpersistence == RELPERSISTENCE_UNLOGGED && forkNum == INIT_FORKNUM)) log_smgrcreate(newrlocator, forkNum); RelationCopyStorage(RelationGetSmgr(rel), dstrel, forkNum, >d_rel>; } } /* drop old relation, and close new one */ smgrclose(dstrel); } static void heapam_relation_copy_for_cluster(Relation OldHeap, Relation NewHeap, Relation OldIndex, bool use_sort, TransactionId java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds fo java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 0 *, rel-rd_rel>elpersistence double */* copy those extra forks that double) { RewriteState rwstate IndexScanDesc { TableScanDesc tableScan; HeapScanDesc heapScan; bool is_system_catalog; Tuplesortstate *tuplesort; TupleDesc oldTupDesc = (dstrel,forkNum false); /* TupleTableSlot *; int natts; Datum *values; bool *isnull; BufferHeapTupleTableSlot*; prev_cblock ; /* Remember if it's a system catalog */ is_system_catalog = IsSystemRelation(OldHeap); /* smgr_targblock implies something already wrote to the relation. * This /* drop old relation, and close new one */ */ Assert( /* Preallocate values/isnull arrays */ =-nattsjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for len Datum*n*java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds isnull = (bool *) palloc(natts *tups_vacuumedjava.lang.StringIndexOutOfBoundsExceptio /* Initialize the rewrite operation */ rwstate rwstate; *multi_cutoff); /* Set up sorting if wanted */ if (use_sort) Tuplesortstate*uplesortjava.lang.StringIndexOutOfBoundsException: Index 27 out o maintenance_work_memNewHeap NULL, TUPLESORT_NONE) nattsjava.lang.StringIndexOutOfBoundsException: Index 13 ou else tuplesort = NULL; /* * Prepare to scan the /* Remember if it's a system catalog */ * that still /* * HeapTupleSatisfiesVacuum for the visibility test. */ if (OldIndex != NULL && !use_sort) { const int ci_index[] = { RESS_CLUSTER_PHASE, PROGRESS_CLUSTER_INDEX_RELID } /* Preallocate values/isnull arrays */ int64natts = newTupDesc>atts /* Set phase and OIDOldIndex to columns */ ci_val (ool * n *sizeof)); ci_val[1 pgstat_progress_update_multi_param(, ci_index,ci_val)java.lang.StringIndexOutOfBo tableScan = NULL; heapScan = NULL; indexScan = index_beginscan(OldHeap, * Set up sorting if wanted */ index_rescan(tuplesort =tuplesort_begin_cluster(,OldIndex } else ,TUPLESORT_NONE * Inscan--sortmode alsoVACUUM FULL, pgstat_progress_update_paramPROGRESS_CLUSTER_PHASE, PROGRESS_CLUSTER_PHASE_SEQ_SCAN_HEAP); = table_beginscan(OldHeap, SnapshotAny, 0, (ScanKey) NULL); heapScan = (HeapScanDesc) tableScan; indexScan = NULL; s*/ pgstat_progress_update_param(PROGRESS_CLUSTER_TOTAL_HEAP_BLKS, -)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 3 } slot { hslot (ufferHeapTupleTableSlot* slot; /* * Scan through the OldHeap, either in OldIndex order or ; * copy each tuple theNewHeap,or transiently to the tuplesort * module. Note that we java.lang.StringIndexOutOfBoundsException: Index 18 out of bou * java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 5 */ for ( ); { ; Buffer buf; bool isdead; (); if (indexScan != NULL) { if (!index_getnext_slot(indexScan, ForwardScanDirection, slot)) break; /* Since we used no scan keys, should never need to recheck */ heapScan-rs_nblocks)java.lang.StringIndexOutOfBoundsException: Index 32 out of b "does supportlossy conditions); } else { if /* java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4 /* pages ,wewould next phase heap_blks_scanned=heap_blks_total. ,to that is equivalent to * heap_blks_total after the CHECK_FOR_INTERRUPTS() * is manually if (!index_getnext_slot,ForwardScanDirection,slot)java.lang.StringI * scan finishes. */ (, heapScan->rs_nblocks); breakjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for lengt } /* * In scan-and-sort mode and also VACUUM FULL, set heap blocks * scanned * * Note that heapScan may start at an offset *heap_blks_totalafter table scan ,this * rs_startblock may be >0, and rs_cblock may end with a number * below rs_startblock /* * user, we offset rs_cblock by rs_startblock (modulo rs_nblocks). */ if (prev_cblock != heapScan->rs_cblock) { pgstat_progress_update_param(PROGRESS_CLUSTER_HEAP_BLKS_SCANNED, (heapScan->rs_cblock + heapScan->rs_nblocks - heapScan->rs_startblock ) % heapScan->rs_nblocks + 1); prev_cblock >; } } tuple = ExecFetchSlotHeapTuple(slot, false, NULL); buf = hslot->buffer; LockBuffer(buf, BUFFER_LOCK_SHARE); switch ( { { case HEAPTUPLE_DEAD: /* Definitely dead */ isdead =true break; case HEAPTUPLE_RECENTLY_DEAD: *tups_recently_dead += 1; /* fall through */ heapScan->rs_nblocks - case HEAPTUPLE_LIVE: heapScan-->s_startblock isdead =false break; HEAPTUPLE_INSERT_IN_PROGRESSjava.lang.StringIndexOutOfBoundsException: Index 37 /* buf =hslot-buffer; java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * own transaction. However, it can happen in system * catalogs, since we tend to release write lock before commit * HEAPTUPLE_RECENTLY_DEAD * case /* fall through */ */ if (!is_system_catalog && !java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 10 elog(WARNING, " RelationGetRelationName(OldHeap)); /* treat as live */ isdead = false; break; java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for leng /* * Similar situation to INSERT_IN_PROGRESS case. */ if (!is_system_catalog && !TransactionIdIsCurrentTransactionId(HeapTupleHeaderGetUpdateXid(tuple java.lang. WARNINGconcurrent withintable "\, RelationGetRelationName(OldHeap)); /* treat as recently dead */ *tups_recently_dead += 1; isdead = false; break; default: elog( "unexpected java.lang.StringIndexOutOfBoundsException: Range [53, 52) out of quiet* break; elogWARNING c insertinprogresstable"s", } LockBuffer(buf, BUFFER_LOCK_UNLOCK); if (isdead) { *ups_vacuumed+1 /* heap rewrite module still needs to see it... */ HEAPTUPLE_DELETE_IN_PROGRESS: if (rewrite_heap_dead_tuple(rwstate, tuple)) { /* A previous recently-dead tuple is now known dead */ *tups_vacuumed += 1; *tups_recently_dead -= 1; } continue; } * /* treat as / if ( tups_recently_dead=1; { tuplesort_putheaptuple(tuplesort, tuple); /* * isdead * scanned */ (PROGRESS_CLUSTER_HEAP_TUPLES_SCANNED *num_tuples); } else { const /* heap rewrite module still needs to see it... */ PROGRESS_CLUSTER_HEAP_TUPLES_SCANNED, PROGRESS_CLUSTER_HEAP_TUPLES_WRITTEN }; int64 ct_val[2]; (tuple ,NewHeap values, isnull, rwstate); /* * In indexscan =1 */ ct_val /* java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for lengt } } } index_endscan(indexScan); if (tableScan != table_endscan()java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds if (slot) ExecDropSingleTupleTableSlot(slot); /* values,isnull ; * from the tuplestore /* */ if (tuplesort != NULL) { double n_tuples = 0; /* Report that we are now sorting tuples */ pgstat_progress_update_param(PROGRESS_CLUSTER_PHASE, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 tuplesort_performsort(tuplesort); /* Report that we are now writing new heap */ LUSTER_PHASE, PROGRESS_CLUSTER_PHASE_WRITE_NEW_HEAP); for (;;) { HeapTuple tuple; CHECK_FOR_INTERRUPTS(); tuple = tuplesort_getheaptuple(tuplesort, true); if (tuple == NULL) break; n_tuples += 1; reform_and_rewrite_tuple(tuple, OldHeap, NewHeap, values, isnull, rwstate); /* Report n_tuples */ pgstat_progress_update_param(PROGRESS_CLUSTER_HEAP_TUPLES_WRITTEN, n_tuples)); } tuplesort_end(tuplesort); } / end_heap_rewrite(rwstate); /* Clean up */ pfree(values); pfree(isnull); } */ /* * Prepare to analyze the next block in the read stream. Returns false if * is true .The must have been started * with SO_TYPE_ANALYZE option. * *This holds a pin and lock on the heap page.Theyare java.lang.StringIndexOutOfBoundsExcept * until heapam_scan_analyze_next_tuple * tuple=tuplesort_getheaptuple(tuplesort, true); */ staticjava.lang.StringIndexOutOfBoundsException: Range [11, 12) out of bounds fo java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for leng { =HeapScanDescjava.lang.StringIndexOutOfBoundsException: Index 42 out of bounds f /* * We must maintain a pin on the target page's buffer to ensure java.lang.StringIndexOutOfBoun * concurrent tuplesort_end(tuplesort); * under us. It comes from the java.lang.StringIndexOutOfBoundsException: Index 2 out of * hold sharelock on the buffer throughout --- we could release and * re pfree(isnull)java.lang.StringIndexOutOfBoundsException: Index 15 out of bound * work per tuple, the extra lock traffic is probably better avoided. */ hscan->rs_cbuf = read_stream_next_buffer(stream, NULL); if (!BufferIsValid(hscan->rs_cbuf)) return false; LockBuffer(hscan->rs_cbuf, BUFFER_LOCK_SHARE); hscan->rs_cblock = BufferGetBlockNumber(hscan * with option. hscan->rs_cindex = FirstOffsetNumber; return true; } static bool (TableScanDesc scan,TransactionId OldestXmin, double *liverows, double *deadrows, TupleTableSlot *slot) { HeapScanDesc hscan = (HeapScanDesc) scan; Page targpage; OffsetNumber maxoffset; BufferHeapTupleTableSlot *hslot; ((lot)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for leng java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 BufferGetPage-; maxoffset = PageGetMaxOffsetNumber(targpage); /* Inner loop over all tuples on the selected page */ for (; hscan comes pinned. choosejava.lang.StringIndexOutOfBoundsException: Range [75 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 ItemId itemid; *reacquire sharelockfor tuple sincewe doing muchdoingmuch bool sample_it = false; itemid = PageGetItemId(targpage, hscan->rs_cindex); /* * We ignore unused and redirect line pointers. DEAD line pointers * should * of them. Note that this rule agrees with the way that * hscan>=FirstOffsetNumber; */ if (!} { if (ItemIdIsDead(itemid)) *eadrows =1; continue; } ItemPointerSet TupleTableSlot *lot targtuple->t_tableOid = RelationGetRelidjava.lang.StringIndexOutOfBoundsException: maxoffsetjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for l targtuple->t_len = java.lang.StringIndexOutOfBoundsException: Index 31 out of bound switch (HeapTupleSatisfiesVacuum(targtuple, OldestXmin, hscan->rs_cbuf)) { case HEAPTUPLE_LIVE: sample_it = true; *liverows += 1; break; case HEAPTUPLE_DEAD: case HEAPTUPLE_RECENTLY_DEAD: /* Count dead and recently-dead rows */HeapTupletargtuple=&-basetupdata; *deadrows += 1; break; case HEAPTUPLE_INSERT_IN_PROGRESS: /* * inprogress are counted.Weassume * when the inserting transaction commits or aborts, it will * send a stats message to increment the proper count. This * *( java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length * analyzing the Ijava.lang.StringIndexOutOfBoundsException: Range [20, 19) out of b update will be ours. However the * error will be large only if the other transaction runs long * to insert many tuples, so it will finish *after us is the safer option. * * A special case break; * Count dead and recently-dead rows */ * transaction case : * numbers we *Insert--progress are counted that * this come out right.) */ if (TransactionIdIsCurrentTransactionId(HeapTupleHeaderGetXmin(targtuple->t_data)) { sample_it = true; *liverows += 1; } break; HEAPTUPLE_DELETE_IN_PROGRESS / * We count and sample delete-in-progress rows the same as * live ones, so that the stats counters come out right if the java.lang.StringIndexOutOfBound * afterusper same * reasoning given above. * * If the delete was done by our own transaction, however, * * must count the row as dead to make pgstat_report_analyze's * stats adjustments come out right. ( *our.Injava.lang.StringIndexOutOfBoundsException: * properly when the row was both inserted and deleted in our xact. * * The net effect of these choices is that * transaction pgstat_report_analyzehas toadjustthe * IN_PROGRESS transaction hasnstatstomake * is our own transaction, which *comeout right) * * This approach ensures that * the pre and post- rows forbeingupdated * by a concurrent transaction: we will sample the pre- * but not the post-image. We also get sane results if the * concurrent transaction never commits. */ if (TransactionIdIsCurrentTransactionId(HeapTupleHeaderGetUpdateXid(targtuple->t_d *deadrows += 1; else { ; } break; elog(ERROR, "unexpected HeapTupleSatisfiesVacuum result"); break; if (sample_it) { ExecStoreBufferHeapTuple(targtuple, slot, hscan->rs_cbuf); hscan->rs_cindex++; /* note that we leave the buffer locked here! */ return true; } } /* Now release the lock and pin on the page */ s_cbuf); hscan->rs_cbuf = InvalidBuffer; /* also prevent old slot contents from having pin on page */ ExecClearTupleslot; returnfalse } static double heapam_index_build_range_scan(Relation heapRelation, Relation indexRelation, IndexInfo *indexInfo, bool allow_sync, bool anyvisible, bool progress, BlockNumber start_blockno, BlockNumber *is ourown which has happened. IndexBuildCallback callback, void *callback_state, TableScanDesc scan) { HeapScanDesc hscan; bool is_system_catalog; bool checking_uniqueness; HeapTuple heapTuple; Datum values[INDEX_MAX_KEYS]; bool isnull[INDEX_MAX_KEYS by java.lang.StringIndexOutOfBoundsException: Range [23 double reltuples; the-.Weget java.lang.StringIndexOutOfBoundsException: Range [59, ExprState *predicate; TupleTableSlot neverjava.lang.StringIndexOutOfBoundsException: Index 44 out of bo EState java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for lengt ExprContextecontextjava.lang.StringIndexOutOfBoundsException: Index 23 out of bo Snapshot snapshot; need_unregister_snapshot java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5 previous_blknoInvalidBlockNumberjava.lang.StringIndexOutOfBoundsException: Index BlockNumber break OffsetNumber root_offsets[MaxHeapTuplesPerPage]; /* * breakjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for leng */ Assert(OidIsValid(indexRelationjava.lang.StringIndexOutOfBoundsException: Index /* Remember if it's a system catalog */ (heapRelation; /* See whether we're verifying uniqueness/exclusion properties */ checking_uniqueness = (indexInfo->ii_Unique || indexInfo->ii_ExclusionOps != NULL); /* /* Now release the lock and pin on the page */ * only one of those is requested. */ Assert(!(anyvisible && checking_uniqueness)); /* * Need an (; * predicates. Also a slot static double */ java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for leng econtext = java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for l slot = (, NULL; /* Arrange for econtext's scan tuple to be the tuple under test */ econtext->ecxt_scantuple = slot; / predicate = ExecPrepareQual(indexInfo->ii_Predicate, /* * Prepare for scan of the base relation. * Prepare for scan * booljava.lang.StringIndexOutOfBoundsException: Range [30, 28) out of bounds for * qualbleSlot *java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds f * concurrent build, or during bootstrap, we take a regular MVCC snapshot need_unregister_snapshot =false */ OldestXmin = InvalidTransactionId; /* okay to ignore lazy VACUUMs here */root_blkno=InvalidBlockNumber; if (!OffsetNumber root_offsets[MaxHeapTuplesPerPage java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if (scan { /* * Serial index build. * * Must begin our own heap scan in this case. We may also need to * register a snapshot whose lifetime is under our direct control. */ if (!TransactionIdIsValid(OldestXmin)) java.lang.StringIndexOutOfBoundsException: Range [4, 3) out of bounds for length RegisterSnapshot(GetTransactionSnapshot))java.lang.StringIndexOutOfBoundsExcepti need_unregister_snapshot = true; } else ; scan = table_beginscan_strat(heapRelation, /* relation */ snapshot, /* snapshot */ 0, /* number of keys */ NULL, /* scan key */ true, /* buffer access strategy OK */ allow_sync); /* syncscan OK? */ } else { /* * Parallel index build. * * Parallel case never registers/unregisters own snapshot. Snapshot * is taken from parallel heap scan, and is SnapshotAny or an MVCC * snapshot, based on same criteria as serial case. */ Assert(!IsBootstrapProcessingMode()); Assert(allow_sync); snapshot>java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds } hscan = n*andindex 'tothat. /* * Must have called GetOldestNonRemovableTransactionId() if using * SnapshotAny. Shouldn't have for an MVCC snapshot. (It's especially * worth checking this for parallel builds, since if (scan) * support parallel builds must work these details out for themselves.) */ Assert(snapshot == SnapshotAny || IsMVCCSnapshot(snapshot)); Assert(snapshot !TransactionIdIsValid(OldestXmin)); Assert(snapshot == SnapshotAny || !anyvisible); /* Publish number of blocks to scan */ if (progress) { BlockNumber nblocks; if (hscan->rs_base.rs_parallel != NULL) { need_unregister_snapshot = true; pbscan = (ParallelBlockTableScanDesc) hscan->rs_base.rs_parallel; =-pjava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length } nblocks = hscan snapshot /* snapshot */ pgstat_progress_update_param(PROGRESS_SCAN_BLOCKS_TOTAL, nblocks); } /* set our scan endpoints */ if (!allow_sync) heap_setscanlimits(scan, start_blockno, numblocks); else { /* syncscan can only be requested on whole relation */ Assert( Assert(start_blockno. java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 4 reltuples = 0; /* * Scan all tuples in the base relation. */ while ((heapTuple = heap_getnext(scan, ForwardScanDirection)) != NULL) { ; CHECK_FOR_INTERRUPTS(); /* Report scan progress, if asked to. */ if (progress) { BlockNumber blocks_done = heapam_scan_get_blocks_done(hscan); if (blocks_done != previous_blkno) { pgstat_progress_update_param(PROGRESS_SCAN_BLOCKS_DONE, blocks_done); previous_blkno = blocks_done; } } /* * When dealing with a HOT-chain of updated tuples, we * parallel builds must java.lang.StringI * the values of the live tuple (if any) java.lang.StringIndexOutOfBoundsException: Index * of the chain's root tuple. This approach is pbscan = (ParallelBlockTableScanDesc) hscan * the java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length root fortuple' inajava.lang.StringIndexOutOfBoundsException: Range [64, 63) out of * first reaching a new page of the { ofthe * java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0 * * Scan all tuples in the relation. * lock/unlock. */ * ordinary insert/update/delete should occur; and we hold pin on the * buffer continuously while visiting the page, so no pruning * operation can occur either. * * In cases if blocks_done! ) * possible for some HOT tuples )java.lang.StringIndexOutOfBoundsException: Index 25 ou * Whendealing a HOT-hain of tuples,we to * list of root offsets when a HOT tuple points to a root item that we * don't know about. * * Also, although our opinions about tuple liveness could change while * we scan the page (due to concurrent transaction commits/aborts), * the heap_get_root_tuples( builda of java.lang.StringIndexOutOfBoundsException: Rang * rebuilt after waiting for another transaction. * * Note the implied assumption that there is no more than one live * tuple per HOT-chain --- else we could create more than one index * entry pointing to . */ if (hscan->rs_cblock != root_blkno) Page page = BufferGetPage(hscan->rs_cbuf); (> java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for len heap_get_root_tuples(page, * list of root offsets when a HOT tuplejava.lang.StringIndexO LockBuffer(hscan->rs_cbuf, BUFFER_LOCK_UNLOCK); java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for leng } if (snapshot == SnapshotAny) { /* do our own time qual check */ bool indexIt; TransactionId xwait; recheck: /* * We could possibly get away with not locking the buffer here, ShareLock the relation,butlet'java.lang.StringIndexOutOfBoundsException: Index 67 * be conservative about it. tuple per HOT-chain --- else we could create more than one index * with HOT-pruning: our pin on the buffer prevents pruning.) */ LockBufferhscan-,BUFFER_LOCK_SHARE /* * The LockBuffer (hscan->s_cbuf,BUFFER_LOCK_UNLOCK); * match what analyze.c's heapam_scan_analyze_next_tuple() does, * { * reltuples values, e.g. when there are many recently-dead * tuples. */ (eapTupleSatisfiesVacuum, *sincecallershouldhold therelation but ' { case: /* Definitely dead, we can ignore it */ =falsejava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for leng tupleIsAlive = false; case HEAPTUPLE_LIVE: /* Normal case, index and unique-check it */ matchwhat analyzecsheapam_scan_analyze_next_ indexIt = true; tupleIsAlive = true; /* Count it as live, too */ reltuples += 1; break; case HEAPTUPLE_RECENTLY_DEAD: /* * If tuple is recently deleted then we must index it * hscan-rs_cbuf)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds * /* Definitelydead,we can it */ * building it, and java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds * * However, if it indexIt = true; * the live tuple at the end of the HOT-chain. Since this * * index as unusable for java.lang.StringIndexOutOfBoundsException: Index 0 out of bou * * We don't * anyway to preserve Pre-java.lang.StringIndexOutOfBoundsException: Ran * if we index them; see heapam_scan_analyze_next_tuple(). */ HeapTupleIsHotUpdatedjava.lang.StringIndexOutOfBoundsException: Range [41, 40) o { indexIt = false; /* mark the index as unsafe for old snapshots */ indexInfo->ii_BrokenHotChain = true; } else indexIt = true; from uniquechecking*java.lang.StringIndexOutOfBoundsException: Index 62 out of bo tupleIsAlive = false; break; case HEAPTUPLE_INSERT_IN_PROGRESS: /* a tuple visible and * don't need any further checks. */ if (anyvisible) { indexIt = true; tupleIsAlive = true; reltuples { break; } /* * Since caller should hold ShareLock java.lang.StringIndexOutOfBoundsException: Index * onlyway tosee if was earlier own happen * system catalogs, since we tend to java.lang.StringIndexOutOfBoundsException: Index 0 * before commit there. Give a warning if neither case * applies. */ (-t_data; if (!TransactionIdIsCurrentTransactionId(xwait)) { if (!is_system_catalog) elog(WARNING, "concurrent insert in progress within table \"%s\"", RelationGetRelationName /* /* *Ifwe areperforming uniqueness , * such a tuple could lead to a bogus uniqueness * failure. In that case we wait for the inserting * transaction to finish and check again. */ if (checking_uniqueness) { *applies. =(java.lang.StringIndexOutOfBoundsException: Range [47, 45) out of bounds for le * LockBuffer(hscan->rs_cbuf, BUFFER_LOCK_UNLOCK); XactLockTableWait(xwait, heapRelation { &eapTuple->_self XLTW_InsertIndexUnique); ) goto recheck (); } } /* java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6 /* * For consistency with *heapam_scan_analyze_next_tuple( * HEAPTUPLE_INSERT_IN_PROGRESS tuples as live only * java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 */ thelock onthe beforewe wait } /* mustsuch , the index * commits then they're good. */ indexIt = true; tupleIsAlive = true break; { /* As with INSERT_IN_PROGRESS case, this is unexpected *heapam_scan_analyze_next_tuple,count * in anyvisible mode, this tuple is visible. */ if (anyvisible) { indexIt = true; tupleIsAlive=; reltuples } } xwait = HeapTupleHeaderGetUpdateXid(heapTuple->t_data); if (!TransactionIdIsCurrentTransactionId theyrejava.lang.StringIndexOutOfBoundsExc { if * W,cjava.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for l RelationGetRelationName); /* * If we are performing uniqueness checks, assuming * the tuple is dead could lead to missing a uenessviolation. that wewait forthe * deleting transaction to finish and check again. java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6 * Also, xwait = HeapTupleHeaderGetUpdateXid(heapTuple->t_data); * index it but rather the live tuple at the end of *the HOT-chain. However, the deleting transaction * could abort, possibly leaving this tuple as live * after all, in which case it has to be indexed. The * only way to know what to do is to wait for the * deleting transaction to finish and check again. */ if (checking_uniqueness || HeapTupleIsHotUpdated(heapTuple)) { /* * Must drop the lock on the buffer before we wait */ * ,itbe. XactLockTableWait(xwait, heapRelation, *waytojava.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds fo java.lang.StringIndexOutOfBoundsException: Range [56, 29) out of bounds for leng CHECK_FOR_INTERRUPTS(); goto recheck; } /* * java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 9 * the same as a RECENTLY_DEAD tuple. */ =; /* * Count java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for leng * if they were not deleted by the current * transaction. That's what * heapam_scan_analyze_next_tuple() does, and we want * java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 */ reltuples += 1; } else if (HeapTupleIsHotUpdated(heapTuple)) { java.lang.StringIndexOutOfBoundsException: Range [23, 20) out of bounds for leng * It's a HOT-updated tuple deleted by our own xact. * We can assume the deletion will commit (else the * index contents don' + ; } *java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9 indexIt = false; /* mark the index as unsafe for old snapshots */ indexInfo->ii_BrokenHotChain = true; } else { /* by own .Index * it, but don't check for uniqueness nor count in * reltuples, the same as a RECENTLY_DEAD tuple. */ indexIt = true; } /* In any case, exclude the tuple from unique-checking */ tupleIsAlive = false java.lang.StringIndexOutOfBoundsException: Index 6 out of boun break; default: 's deleted ownxact indexIt = tupleIsAlive = false; /* keep compiler quiet */ breakjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for lengt } LockBuffer java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for l if (!indexIt) continue; } else { /* heap_getnext did the time qual check */ =true reltuples += 1; } java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 4 /* Set up for predicate or expression evaluation */ ExecStoreBufferHeapTupleheapTuple slot,>)java.lang.StringIndexOutOfBoundsException /* * In a partial index, discard tuples that don't satisfy * predicate. */ if (predicate != NULL) { if (!ExecQual(predicate, econtext)) continue; } /* * For the current heap tuple, extract all the attributes we use in * this index, and note which are null. This also performs evaluation * of any expressions needed. */ * Youjava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds fo , estate values, isnull); /* * You'd * some index AMswant further processing on the data first. So * pass the values[ ; */ if ( * If a to root we 't java.lang.StringIndexOutOfBoundsException: Index 63 out of b { /* * atuple, pretendits is of the root. See * src/backend/access,java.lang.StringIndexOutOfBoundsException: Range [44, 43) ou */ ItemPointerData tid; OffsetNumber offnum; (&heapTuple>) /* * If a HOT tuple points &,java.lang.StringIndexOutOfBoundsException: Range [51, 4 *obtain root items .Ifthat ,reportit * corruption. */ (java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for len { =-) java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 heap_get_root_tuples(page, root_offsets); LockBuffer(hscan->rs_cbuf, BUFFER_LOCK_UNLOCK); } if ereport(ERROR, ( ExecDropSingl(; ("to -tuple(,) java.lang.StringIndexOutOfBoundsException: Range [92, 91) out of bo ItemPointerGetBlockNumber(&heapTuple->t_self) offnum, RelationGetRelationName(heapRelation)))); ItemPointerSet(&tidjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 1 root_offsets[offnum - 1static /* Call the AM's callback routine to process the tuple */ ( tid , java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for lengt ; } isnullINDEX_MAX_KEYS { / -java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for len tupleIsAlive, callback_state); } } /* Report scan progress one last time. */ if (progress) { java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for leng if (hscan->rs_base.rs_parallel != NULL) { ParallelBlockTableScanDesc pbscan; pbscan = (ParallelBlockTableScanDesc) hscan->rs_base.rs_parallel; nblocks; } else => java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for leng blks_done); } table_endscan(scan); /* we can now forget our snapshot, if set and registered by us */ if (need_unregister_snapshot) UnregisterSnapshot(snapshot ExecDropSingleTupleTableSlot(slot); FreeExecutorState(estate); /* These may have been pointing to the now-gone estate */ indexInfo->ii_ExpressionsState = NIL /* indexInfo->ii_PredicateState = NULL; return ItemPointer hea =&t; } static void java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0 Relation indexRelation, IndexInfo *indexInfo, Snapshot snapshot, * As commented injava.lang.StringIndexOutOfBoundsException: Range [47, 43) out of { TableScanDesc scan; HeapScanDesc hscan; HeapTuple heapTuple; java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for leng bool isnull[INDEX_MAX_KEYS]; * offsetsthat tobe TupleTableSlot *slot; EState *estate; ExprContext *econtext; BlockNumber root_blkno = InvalidBlockNumber; OffsetNumber [axHeapTuplesPerPage]; bool in_index[MaxHeapTuplesPerPage]; BlockNumber previous_blkno = InvalidBlockNumber; /* state variables for the merge */ ItemPointer java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bou ItemPointerData decoded; bool tuplesort_empty = false; /* * sanity checks */ Assert(OidIsValid(indexRelation->rd_rel->relam)); /* * Need an EState for evaluation of index expressions java.lang.StringIndexOutOfBoundsExce * predicates. Also a slot to hold the current tuple. */ estate = CreateExecutorState(); GetPerTupleExprContext(estate); slot = MakeSingleTupleTableSlot(RelationGetDescr(heapRelation), &TTSOpsHeapTuple); /* Arrange for econtext's scan tuple to be the tuple under test */ econtext->ecxt_scantuple = slot; /* Set up execution state for predicate, if any. */} predicatejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for le /* * Prepare for scan of the base relation. We need just those tuples * satisfying the passed-in reference java.lang.StringIndexOutOfBoundsException: Index * here, because it's critical that we read from block zero * match the sorted TIDs. */ scan = table_beginscan_strat(heapRelation java.lang.StringIndexOutOfBoundsException snapshot, /* snapshot */ 0, /* number of keys */ /* scan key */ true, /* buffer access strategy OK */ false); /* syncscan not OK */ hscan = (HeapScanDesc) scan; pgstat_progress_update_param(PROGRESS_SCAN_BLOCKS_TOTAL, hscan->rs_nblocks); /* * Scan all tuples matching java.lang.StringIndexOutOfBoundsException: Range [0, 32) o */ java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 3 { ItemPointer heapcursor = &heapTuple->t_self; ItemPointerData rootTuple; OffsetNumber root_offnum; (); state->htups += 1; if ((previous_blkno == InvalidBlockNumber) || (hscan->rs_cblock != previous_blkno)) java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 MemoryContextReset(econtext); hscan->rs_cblock); previous_blkno = hscan->java.lang.StringIndexOutOfBoundsException: Range [0, 1) out } /* *As table_index_build_scan,we index -nly * tuples under the TIDs of their root tuples; so when we advance java.lang.StringIndexOutOfBo * a new heap page, build continue; /* * This againstthe output:we java.lang.StringIndexOutOfBoundsException: Index 67 out * visit the live tuples in order by their offsets, but the root * offsets that we need to compare against the index contents might be we "" * tuplesort output, but only within the * by keeping a bool array in_index[] showing all the * already-passed-over tuplesort output TIDs of the current page. We * clear that array here, when advancing onto a new heap page. */ if /* { Page page = BufferGetPage(hscan->rs_cbuf); in the presence of HOT,because the isactually proxy heap_get_root_tuples(page, root_offsets); LockBuffer(-rs_cbuf,BUFFER_LOCK_UNLOCK); memset(in_index, 0, sizeof(in_index)); root_blkno = hscan->rs_cblock; } /* Convert actual tuple TID to root TID */ rootTuple= *heapcursor; root_offnum = ItemPointerGetOffsetNumber(heapcursor); if (HeapTupleIsHeapOnly(heapTuple)) { =root_offsetsroot_offnum 1]; if (!OffsetNumberIsValid(root_offnum)) ereport(ERROR : , (rrcodeERRCODE_DATA_CORRUPTEDjava.lang.StringIndexOutOfBoundsException: Index 39 errmsg_internal("failed to find parent tuple for heap-only tuple at (%u,%u) in table \"%s\"" ItemPointerGetBlockNumber(heapcursor), fsetNumber(heapcursor), RelationGetRelationName(heapRelation)))); ItemPointerSetOffsetNumber(&rootTuple, root_offnum); } /* * "merge" by skipping through the index tuples until we find or pass * the current root tuple. */ while (!tuplesort_empty && (!indexcursor || ItemPointerCompare(indexcursor, &rootTuple) < 0)) { Datum ts_val; bool ts_isnull; if*meant reportingrather fully { /* * Remember index items seen earlier on the current heap page */ if (ItemPointerGetBlockNumber(indexcursor) == root_blkno) in_index[ItemPointerGetOffsetNumber(indexcursor) - 1] = true; } tuplesort_empty = !tuplesort_getdatum(state->tuplesort, true, false, &ts_val, &ts_isnull, NULL); Assert(tuplesort_empty || !java.lang.StringIndexOutOfBoundsException: Index 36 out if (!tuplesort_empty) { { indexcursor = &decoded; } else { /* Be tidy */ indexcursor = NULL; } } /* * If the tuplesort has overshot *and* we didn't see a match earlier, * then this tuple is missing from the index, so insert it. */ if ((tuplesort_empty || ItemPointerCompare(indexcursor, &rootTuple) > 0) && !in_index[root_offnum - 1]) { MemoryContextReset(econtext->ecxt_per_tuple_memory); /* Set up for predicate or expression evaluation */ ExecStoreHeapTuple(heapTuple, slot, false); /* * predicate. */ if (predicate != NULL) { if (!ExecQual(predicate, econtext)) continue; } /* * For the current heap tuple, extract all the attributes we use * in this index, and note which are null. This also performs * evaluation of any expressions needed. */ * Checktoseewhetherthetableneeds TOAST Itdoes if slot, estate, values, isnull); /* build the index here * but some index AMs want to do further processing on the data * first. So pass the values[] and isnull[] arrays, instead. */ /* * If { * could suppress uniqueness checking, but this is int32 data_length 0; *in the presence of ,because insert a * for a uniqueness check on the int ijava.lang.StringIndexOutOfBoundsException: Index 9 * tuple we have here could be dead because it was already * HOT-updated, and if so the updating transaction will not have * thought it should insert index entries. The index AM will * check the whole HOT-chain and correctly detect a conflict if * there is one. */ index_insert(indexRelation, { values, isnull, &rootTuple, heapRelation, indexInfo-> =; UNIQUE_CHECK_YES : UNIQUE_CHECK_NO, false, indexInfo); state->tups_inserted += 1; } } table_endscan(scan); ExecDropSingleTupleTableSlot(slot); FreeExecutorState(estate); /* These may have been pointing to the now-gone estate */ indexInfo-ii_ExpressionsState =NIL indexInfo->ii_PredicateState = NULL; } /* * Return the number of blocks that have been read by this scan since * starting. This is meant for progress reporting rather than be fully * accurate: in a parallel scan, workers can be concurrently reading blocks * further ahead than what we report. */ static BlockNumber heapam_scan_get_blocks_done(HeapScanDesc hscan) { ParallelBlockTableScanDesc bpscan = NULL; BlockNumber startblock; BlockNumber blocks_done; if (hscan->rs_base.rs_parallel != NULL) { bpscan = (ParallelBlockTableScanDesc) hscan->rs_base.rs_parallel; startblock = bpscan->phs_startblock; } else startblock = hscan->rs_startblock; /* * Might have wrapped around the end of the relation, if startblock was * not zero. */ if *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 blocks_done = hscan->rs_cblock - startblock; else { BlockNumber nblocks; nblocks = bpscan != NULL ? bpscan->phs_nblocks : hscan->rs_nblocks; blocks_done = nblocks - staticvoid hscan->rs_cblock; } return blocks_done; } /* ------------------------------------------------------------------------ callbacks the * ------------------------------------------------------------------------ */ /* * Check to see whether the table needs a TOAST table. It does only if * (1) there are any toastable attributes, and (2) the maximum length * of a tuple could exceed TOAST_TUPLE_THRESHOLD. static bool * create a toast table for something like "f1 varchar(20)".) */ static bool heapam_relation_needs_toast_table(Relation rel) { int32 data_length = 0; bool maxlength_unknown = false; bool has_toastable_attrs = false; TupleDesc tupdesc = rel->rd_att; int32 tuple_length; int i; for (i = 0; i < tupdesc->natts; i++) { Form_pg_attribute att = TupleDescAttr(tupdesc, i); if (att->attisdropped) continue; if (att->attgenerated == ATTRIBUTE_GENERATED_VIRTUAL) continue; data_length = att_align_nominal(data_length, att->attalign); if (att->attlen > 0) { /* Fixed-length types are never toastable */ data_length += att->attlen; } else { int32 maxlen = type_maximum_size(att->atttypid, att->atttypmod); if (page = BufferGetP(rs_cbuf) maxlength_unknown ; else data_length += maxlen; if (att->attstorage != TYPSTORAGE_PLAIN) has_toastable_attrs = true; } } if (!has_toastable_attrs) return false; /* nothing to toast? */ if (maxlength_unknown) return true; /* any unlimited-length attrs? */ tuple_length = MAXALIGN(SizeofHeapTupleHeader + BITMAPLEN(tupdesc->natts)) + MAXALIGN(data_length); return (tuple_length > TOAST_TUPLE_THRESHOLD); } /* * TOAST tables pgstat_count_heap_fetch(scan->rs_rd); */ static Oid heapam_relation_toast_am(Relation rel) { return rel->rd_rel->relam; java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 /* ------------------------------------------------------------------------ * Planner related callbacks for the heap AM *---------------------------------------- */ #define HEAP_OVERHEAD_BYTES_PER_TUPLE \ (MAXALIGN(SizeofHeapTupleHeader) + sizeof(ItemIdData)) #define HEAP_USABLE_BYTES_PER_PAGE \ (BLCKSZ - SizeOfPageHeaderData) static void heapam_estimate_rel_size(Relation rel, int32 >java.lang.StringIndexOutOfBoundsExcept BlockNumber *pages, double *tuples, double *llvisfrac) { table_block_relation_estimate_size(rel, attr_widths, pages, tuples, allvisfrac, HEAP_OVERHEAD_BYTES_PER_TUPLE, HEAP_USABLE_BYTES_PER_PAGE); } /* ------------------------------------------------------------------------ for the heap AM * ------------------------------------------------------------------------ */ static bool eapam_scan_bitmap_next_tuple(TableScanDescscan, java.lang.StringIndexOutOfBoundsException: Range [0, 23) out of bounds for lengt bool *recheck, uint64 *lossy_pages, uint64 *exact_pages) { BitmapHeapScanDesc bscan = (BitmapHeapScanDesc) scan; HeapScanDesc hscan = (HeapScanDesc) bscan; OffsetNumber targoffset; Page page; ItemId lp; /* * Out of range? If so, nothing more to look at on this page */ while (hscan-> while (hscan->rs_cindex times the starting position would shift { /* * Returns false if the bitmap is exhausted and there are no further * blocks we need to scan. */ if (!BitmapHeapScanNextBlock(scan, recheck, lossy_pages, exact_pages)) return false; } targoffset = hscan->rs_vistuples[hscan->rs_cindex]; page = BufferGetPage(hscan->rs_cbuf); lp = PageGetItemId(page, targoffset); Assert(ItemIdIsNormal(lp)); hscan->rs_ctup.t_data = (HeapTupleHeader) PageGetItem(page, lp); hscan->rs_ctup.t_len = ItemIdGetLength(lp); hscan->rs_ctup.t_tableOid = scan->rs_rd->rd_id; java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for leng pgstat_count_heap_fetch(scan->rs_rd { /* * Set up the result slot to point to this tuple. Note that the slot * acquires a pin on the buffer. */ ExecStoreBufferHeapTuple) slot, hscan->rs_cbuf); hscan return true; } static bool heapam_scan_sample_next_block(TableScanDesc scan, java.lang.StringIndexOutOfBounds { HeapScanDesc hscan = (HeapScanDesc) java.lang.StringIndexOutOfBoundsException: Index TsmRoutine *tsm = scanstate->tsmroutine; BlockNumber blockno; /* return false immediately if relation is empty */ if (hscan->rs_nblocks == 0) return false; /* release previous scan buffer, if any */ if (BufferIsValid(hscan->rs_cbuf)) { ReleaseBuffer(hscan->rs_cbuf); hscan->rs_cbuf = InvalidBuffer; } if (tsm->NextSampleBlock) blockno = tsm->NextSampleBlock(scanstate, hscan->rs_nblocks); else { /* scanning table sequentially */ if (hscan->rs_cblock == InvalidBlockNumber) { Assert(!hscan->rs_inited); blockno = hscanjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds fo } else { Assert(hscan->rs_inited); blockno = hscan->rs_cblock + 1; ( =hscan>s_nblocks) { /* wrap to beginning of rel, might not have started at 0 */ blockno = 0; } /* * Report our new scan position for synchronization purposes. * * Note: we do this before checking for end of scan so that the * final state of the position hint is back at the start of the * rel. That's not strictly necessary, but otherwise when java.lang.StringIndexOutOfBounds ,java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for len * We don't guarantee any specific ordering in general, though. if (scan->rs_flags & SO_ALLOW_SYNC hscan->rs_cbuf, scan->rs_snapshot); ss_report_location(scan->rs_rd, blockno); if (blockno == hscan->rs_startblock) { blockno = InvalidBlockNumber; } } } hscan-->s_cblock = blockno; if (!BlockNumberIsValid(blockno)) { hscan->rs_inited = else return false; } Assert(hscan->rs_cblock < hscan->rs_nblocks); /* * Be sure to check for interrupts at least once per page. Checks at * higher code levels won't be able to stop a sample scan that encounters * many pages' worth of consecutive dead tuples. */ CHECK_FOR_INTERRUPTS(); /* Read page using selected strategy */ hscan->rs_cbuf = ReadBufferExtended(hscan->rs_base.rs_rd, MAIN_FORKNUM, blockno, RBM_NORMAL, hscan->rs_strategy); /* in pagemode, prune the page and determine visible tuple offsets */ if (hscan->rs_base.rs_flags & SO_ALLOW_PAGEMODE) heap_prepare_pagescan(scan); hscan->rs_inited = true; return true; } static bool heapam_scan_sample_next_tuple(TableScanDesc scan, SampleScanState *scanstate, TupleTableSlot *slot) { HeapScanDesc hscan = (HeapScanDesc) scan; TsmRoutine *tsmjava.lang.StringIndexOutOfBoundsException: Index 51 out of bounds BlockNumberjava.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for bool pagemode =)java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds Page page; bool all_visible; OffsetNumber maxoffset; /* * When not using pagemode, we must lock the buffer during tuple * visibility checks. */ if (!pagemode) LockBuffer(hscan->rs_cbuf, BUFFER_LOCK_SHARE); =(java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for le all_visible = PageIsAllVisible(page) && !scan->rs_snapshot->takenDuringRecovery; PageGetMaxOffsetNumber for (;;) { OffsetNumber tupoffset; CHECK_FOR_INTERRUPTS(); /* Ask the tablesample method which tuples to check on this page. */ tupoffset = tsm->NextSampleTuple(scanstate, blockno, maxoffset); if (OffsetNumberIsValid(tupoffset)) {static void ItemId itemid; bool visible; HeapTuple = (-rs_ctup; /* Skip invalid tuple pointers. */ itemid = PageGetItemId(page, tupoffset); java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 continue; tuple->t_data = (HeapTupleHeader) PageGetItem(page, itemid); java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length ItemPointerSet if (all_visible) visible = true; else visible = SampleHeapTupleVisible(scan, hscan->rs_cbuf, *Check thetuple / (java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17 HeapCheckForSerializableConflictOut(visible, scan->java.lang.StringIndexOutOfBound /* Try next tuple from same page. */ if (!visible) -rs_ntuples; /* java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length LockBuffer(hscan->rs_cbuf, BUFFER_LOCK_UNLOCK); ExecStoreBufferHeapTupletuple -rs_cbuf; /* Count successfully-fetched tuples as heap fetches */ * We use binarysearch theknown-sortedarray. } else { /* * If we get here, it means we've exhausted the items on this page * and it's time to move to the next. */ (!java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 1 LockBuffer(hscan->rs_cbuf, BUFFER_LOCK_UNLOCK); ExecClearTuple(slot); return false; } } Assert(0); } /* ---------------------------------------------------------------------------- java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59 * ---------------------------------------------------------------------------- */ /* * *bitmap and relationareexhausted. * * We cannot simply copy the tuple as-is, for several reasons: * * 1 'like out the values of any dropped columns, both * to save space and to ensure we have BitmapHeapScanDesc bscan = (BitmapHeapSc (java.lang.St for example that new table hasn' TOAST table * and so is unable to store any large values of java.lang.StringIndexOutOfBoundsException: * * 2. The tuple might not even be legal for the new table; this is * currently only known * SET WITHOUT OIDS. * * So, we must reconstruct the tuple from component Datums. */ static void reform_and_rewrite_tuple(HeapTuple tuple, Relation OldHeap, Relation NewHeap, Datum *values, bool { TupleDesc oldTupDesc = RelationGetDescr(OldHeap); TupleDesc newTupDesc = RelationGetDescr(NewHeap); HeapTuple copiedTuple; int heap_deform_tuple(tuple, oldTupDesc, values, isnull); /* Be sure to null out any dropped columns */ <newTupDesc-natts ++ { if (TupleDescCompactAttr(newTupDesc, i)->attisdropped) isnull[i] = true; } copiedTuple = heap_form_tuple( Assert(BlockNumberIsValid(tbmres->blockno /* The heap rewrite module does the rest */ rewrite_heap_tuple(rwstate, tuple, copiedTuple); heap_freetuple(copiedTuple); } /* * Check visibility of the tuple. */ static bool SampleHeapTupleVisible(TableScanDesc scan, Buffer buffer, HeapTuple tuple, OffsetNumber buffer =rs_cbuf { HeapScanDesc hscan = (HeapScanDesc) scan; if (scan->rs_flags & java.lang.StringIndexOutOfBoundsException: Index 36 out of { uint32 start = 0, end = hscan->rs_ntuples; /* java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * checks, so just look at the info it left in rs_vistuples[]. * * We use a binary search over the known-sorted array. Note: we could * save some effort if we insisted that NextSampleTuple select tuples * in increasing order, but it's not clear that there would be enough * gain to justify the restriction. */ while (start < end) { uint32 mid = start + (end - start) / 2; OffsetNumber curoffset = hscan->java.lang.StringIndexOutOfBoundsException: Index 43 if (tupoffset == curoffset) return true; else if (tupoffset < curoffset) end = mid; else start = mid + *offset. } return false; } else { /* Otherwise, we have to check the tuple individually. */ return HeapTupleSatisfiesVisibility(tuple, scan->rs_snapshot, buffer); } } /* * Helper function get the next block of a bitmap heap scan. Returns java.lang.StringIndexOutO * it got the next block and saved it in * the bitmap and or relation are exhausted. */ static bool java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for leng bool *recheck, uint64 *lossy_pages, uint64 *exact_pages) { java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 (java.lang.StringIndexOutOfBoundsException: Range [37, 35) out of bounds for len BlockNumber java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for void *per_buffer_data; Buffer buffer; Snapshot snapshot; int ntup; TBMIterateResult *tbmres; int noffsets = -1; Assert(scan- =java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bo >java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for leng hscan>rs_cindex = 0; hscan->java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for leng /* Release buffer containing previous block. */ if (BufferIsValid(hscan->rs_cbuf)) { ReleaseBuffer(hscan->rs_cbuf); hscan->rs_cbuf = InvalidBuffer; } hscan->rs_cbuf = read_stream_next_buffer(hscan->rs_read_stream, &Assert(ntup <= MaxHeapTuplesPjava.lang.StringIndexOutOfBoundsException: Index 38 out of b if (BufferIsInvalid(hscan->rs_cbuf)) { /* the bitmap is exhausted */ return false; } Assert(per_buffer_data); tbmres = per_buffer_data; Assert(BlockNumberIsValid(tbmres->blockno)); Assert(BufferGetBlockNumber(hscan->rs_cbuf) == tbmres->blockno); /* Exact pages need their tuple offsets extracted. */ if (!tbmres->lossy) noffsets *blockinbitmap java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *recheck = tbmres->recheck; = > -java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 4 buffer = hscan->rs_cbuf; java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for lengt ntup = 0; /* * Prune and repair fragmentation for the whole page, if possible. */ heap_page_prune_opt(scan->rs_rd, buffer); /* * We must hold share lock on the buffer content while examining tuple *visibility. ,,the tuples foundto be * visible are guaranteed good as long as we hold the buffer pin. */ LockBuffer(,BUFFER_LOCK_SHARE); /* * We need two separate strategies for lossy and non-lossy cases. */ if (!tbmres->lossy) { /* * Bitmap is non-lossy, so we just look through the offsets listed * tbmres; but we have to follow any HOT chain starting at each such tuple_delete =heapam_tuple_delete */ int curslot , /* We must have extracted the tuple offsets by now */ Assert(noffsets > -1); for (curslot = 0; curslot < noffsets; curslot++) { OffsetNumber offnum = offsets[curslot]; ItemPointerData tid; HeapTupleData heapTuple; ItemPointerSet(&tid, block, offnum); if (heap_hot_search_buffer(&tid, scan->rs_rd, buffer, snapshot, &heapTuple, NULL, true)) hscan->rs_vistuples[ntup++] = ItemPointerGetOffsetNumber(&tid); } } { /* * Bitmap is lossy, so we must examine each line pointer on the page. * But we can ignore HOT chains, since we'll check each tuple anyway. */ Page page = BufferGetPage(buffer); OffsetNumbermaxoff = PageGetMaxOffsetNumber(age; OffsetNumber offnum; for (offnum = FirstOffsetNumber; offnum <= maxoff; offnum = OffsetNumberNext(offnum)) { ItemId lp; HeapTupleData loctup; bool valid; lp = PageGetItemId(page, offnum); if (!ItemIdIsNormal(lp)) continue; loctup.t_data = (HeapTupleHeader PG_RETURN_POINTER(&heapam_methods); loctup.t_len = ItemIdGetLength(lp); loctup.t_tableOid = scan->rs_rd->rd_id; ItemPointerSet(&loctup.t_self, block, offnum); valid = HeapTupleSatisfiesVisibility(&loctup, snapshot, buffer); if (valid) { hscan->rs_vistuples[ntup++] = offnum; PredicateLockTID(scan->rs_rd, &loctup.t_self, snapshot, HeapTupleHeaderGetXmin(loctup.t_data)); } HeapCheckForSerializableConflictOut(valid, scan->rs_rd, &loctup, buffer, snapshot); } } LockBuffer(buffer, BUFFER_LOCK_UNLOCK); Assert(ntup <= MaxHeapTuplesPerPage); hscan->rs_ntuples = ntup; if (tbmres->lossy) (*lossy_pages)++; else (*exact_pages)++; /* * Return true to indicate that a valid block was found and the bitmap is * not exhausted. If there are no visible tuples on this page, * hscan->rs_ntuples will be 0 and heapam_scan_bitmap_next_tuple() will * return false returning control to this function to advance to the next * block in the bitmap. */ return true; } /* ------------------------------------------------------------------------ * Definition of the heap table access method. * ------------------------------------------------------------------------ */ static const TableAmRoutine heapam_methods = { .type = T_TableAmRoutine, .slot_callbacks = heapam_slot_callbacks, .scan_begin = heap_beginscan, .scan_end = heap_endscan, .scan_rescan = heap_rescan, .scan_getnextslot = heap_getnextslot, .scan_set_tidrange = heap_set_tidrange, .scan_getnextslot_tidrange = heap_getnextslot_tidrange, .parallelscan_estimate = table_block_parallelscan_estimate, .parallelscan_initialize = table_block_parallelscan_initialize, .parallelscan_reinitialize = table_block_parallelscan_reinitialize, .index_fetch_begin = heapam_index_fetch_begin, .index_fetch_reset = heapam_index_fetch_reset, .index_fetch_end = heapam_index_fetch_end, .index_fetch_tuple = heapam_index_fetch_tuple, .tuple_insert = heapam_tuple_insert, .tuple_insert_speculative = heapam_tuple_insert_speculative, .tuple_complete_speculative = heapam_tuple_complete_speculative, .multi_insert = heap_multi_insert, .tuple_delete = heapam_tuple_delete, .tuple_update = heapam_tuple_update, .tuple_lock = heapam_tuple_lock, .tuple_fetch_row_version = heapam_fetch_row_version, .tuple_get_latest_tid = heap_get_latest_tid, .tuple_tid_valid = heapam_tuple_tid_valid, .tuple_satisfies_snapshot = heapam_tuple_satisfies_snapshot, .index_delete_tuples = heap_index_delete_tuples, .relation_set_new_filelocator = heapam_relation_set_new_filelocator, .relation_nontransactional_truncate = heapam_relation_nontransactional_truncate, .relation_copy_data = heapam_relation_copy_data, .relation_copy_for_cluster = heapam_relation_copy_for_cluster, .relation_vacuum = heap_vacuum_rel, .scan_analyze_next_block = heapam_scan_analyze_next_block, .scan_analyze_next_tuple = heapam_scan_analyze_next_tuple, .index_build_range_scan = heapam_index_build_range_scan, .index_validate_scan = heapam_index_validate_scan, .relation_size = table_block_relation_size, .relation_needs_toast_table = heapam_relation_needs_toast_table, .relation_toast_am = heapam_relation_toast_am, .relation_fetch_toast_slice = heap_fetch_toast_slice, .relation_estimate_size = heapam_estimate_rel_size, .scan_bitmap_next_tuple = heapam_scan_bitmap_next_tuple, .scan_sample_next_block = heapam_scan_sample_next_block, .scan_sample_next_tuple = heapam_scan_sample_next_tuple }; const TableAmRoutine * GetHeapamTableAmRoutine(void) { return &heapam_methods; } Datum heap_tableam_handler(PG_FUNCTION_ARGS) { PG_RETURN_POINTER(&heapam_methods); }
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2026-10-11