/* * Copyright (c) 2019 TAOS Data, Inc. * * This program is free software: you can use, redistribute, and/or modify * it under the terms of the GNU Affero General Public License, version 3 * or later ("AGPL"), as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . */ #include "osDef.h" #include "tsdb.h" #define ASCENDING_TRAVERSE(o) (o == TSDB_ORDER_ASC) typedef enum { EXTERNAL_ROWS_PREV = 0x1, EXTERNAL_ROWS_MAIN = 0x2, EXTERNAL_ROWS_NEXT = 0x3, } EContentData; typedef struct { STbDataIter* iter; int32_t index; bool hasVal; } SIterInfo; typedef struct { int32_t numOfBlocks; int32_t numOfLastFiles; } SBlockNumber; typedef struct SBlockIndex { int32_t ordinalIndex; int64_t inFileOffset; STimeWindow window; // todo replace it with overlap flag. } SBlockIndex; typedef struct STableBlockScanInfo { uint64_t uid; TSKEY lastKey; TSKEY lastKeyInStt; // last accessed key in stt SMapData mapData; // block info (compressed) SArray* pBlockList; // block data index list, SArray SIterInfo iter; // mem buffer skip list iterator SIterInfo iiter; // imem buffer skip list iterator SArray* delSkyline; // delete info for this table int32_t fileDelIndex; // file block delete index int32_t lastBlockDelIndex; // delete index for last block bool iterInit; // whether to initialize the in-memory skip list iterator or not } STableBlockScanInfo; typedef struct SBlockOrderWrapper { int64_t uid; int64_t offset; } SBlockOrderWrapper; typedef struct SBlockOrderSupporter { SBlockOrderWrapper** pDataBlockInfo; int32_t* indexPerTable; int32_t* numOfBlocksPerTable; int32_t numOfTables; } SBlockOrderSupporter; typedef struct SIOCostSummary { int64_t numOfBlocks; double blockLoadTime; double buildmemBlock; int64_t headFileLoad; double headFileLoadTime; int64_t smaDataLoad; double smaLoadTime; int64_t lastBlockLoad; double lastBlockLoadTime; int64_t composedBlocks; double buildComposedBlockTime; double createScanInfoList; // double getTbFromMemTime; // double getTbFromIMemTime; double initDelSkylineIterTime; } SIOCostSummary; typedef struct SBlockLoadSuppInfo { SArray* pColAgg; SColumnDataAgg tsColAgg; int16_t* colId; int16_t* slotId; int32_t numOfCols; char** buildBuf; // build string tmp buffer, todo remove it later after all string format being updated. bool smaValid; // the sma on all queried columns are activated } SBlockLoadSuppInfo; typedef struct SLastBlockReader { STimeWindow window; SVersionRange verRange; int32_t order; uint64_t uid; SMergeTree mergeTree; SSttBlockLoadInfo* pInfo; } SLastBlockReader; typedef struct SFilesetIter { int32_t numOfFiles; // number of total files int32_t index; // current accessed index in the list SArray* pFileList; // data file list int32_t order; SLastBlockReader* pLastBlockReader; // last file block reader } SFilesetIter; typedef struct SFileDataBlockInfo { // index position in STableBlockScanInfo in order to check whether neighbor block overlaps with it uint64_t uid; int32_t tbBlockIdx; } SFileDataBlockInfo; typedef struct SDataBlockIter { int32_t numOfBlocks; int32_t index; SArray* blockList; // SArray int32_t order; SDataBlk block; // current SDataBlk data SHashObj* pTableMap; } SDataBlockIter; typedef struct SFileBlockDumpInfo { int32_t totalRows; int32_t rowIndex; int64_t lastKey; bool allDumped; } SFileBlockDumpInfo; typedef struct STableUidList { uint64_t* tableUidList; // access table uid list in uid ascending order list int32_t currentIndex; // index in table uid list } STableUidList; typedef struct SReaderStatus { bool loadFromFile; // check file stage bool composedDataBlock; // the returned data block is a composed block or not SHashObj* pTableMap; // SHash STableBlockScanInfo** pTableIter; // table iterator used in building in-memory buffer data blocks. STableUidList uidList; // check tables in uid order, to avoid the repeatly load of blocks in STT. SFileBlockDumpInfo fBlockDumpInfo; SDFileSet* pCurrentFileset; // current opened file set SBlockData fileBlockData; SFilesetIter fileIter; SDataBlockIter blockIter; } SReaderStatus; typedef struct SBlockInfoBuf { int32_t currentIndex; SArray* pData; int32_t numPerBucket; int32_t numOfTables; } SBlockInfoBuf; struct STsdbReader { STsdb* pTsdb; SVersionRange verRange; TdThreadMutex readerMutex; bool suspended; uint64_t suid; int16_t order; bool freeBlock; STimeWindow window; // the primary query time window that applies to all queries SSDataBlock* pResBlock; int32_t capacity; SReaderStatus status; char* idStr; // query info handle, for debug purpose int32_t type; // query type: 1. retrieve all data blocks, 2. retrieve direct prev|next rows SBlockLoadSuppInfo suppInfo; STsdbReadSnap* pReadSnap; SIOCostSummary cost; STSchema* pSchema; // the newest version schema STSchema* pMemSchema; // the previous schema for in-memory data, to avoid load schema too many times SDataFReader* pFileReader; // the file reader SDelFReader* pDelFReader; // the del file reader SArray* pDelIdx; // del file block index; SBlockInfoBuf blockInfoBuf; int32_t step; STsdbReader* innerReader[2]; }; static SFileDataBlockInfo* getCurrentBlockInfo(SDataBlockIter* pBlockIter); static int buildDataBlockFromBufImpl(STableBlockScanInfo* pBlockScanInfo, int64_t endKey, int32_t capacity, STsdbReader* pReader); static TSDBROW* getValidMemRow(SIterInfo* pIter, const SArray* pDelList, STsdbReader* pReader); static int32_t doMergeRowsInFileBlocks(SBlockData* pBlockData, STableBlockScanInfo* pScanInfo, STsdbReader* pReader, SRowMerger* pMerger); static int32_t doMergeRowsInLastBlock(SLastBlockReader* pLastBlockReader, STableBlockScanInfo* pScanInfo, int64_t ts, SRowMerger* pMerger, SVersionRange* pVerRange, const char* id); static int32_t doMergeRowsInBuf(SIterInfo* pIter, uint64_t uid, int64_t ts, SArray* pDelList, SRowMerger* pMerger, STsdbReader* pReader); static int32_t doAppendRowFromTSRow(SSDataBlock* pBlock, STsdbReader* pReader, SRow* pTSRow, STableBlockScanInfo* pInfo); static int32_t doAppendRowFromFileBlock(SSDataBlock* pResBlock, STsdbReader* pReader, SBlockData* pBlockData, int32_t rowIndex); static void setComposedBlockFlag(STsdbReader* pReader, bool composed); static bool hasBeenDropped(const SArray* pDelList, int32_t* index, TSDBKEY* pKey, int32_t order, SVersionRange* pVerRange); static int32_t doMergeMemTableMultiRows(TSDBROW* pRow, uint64_t uid, SIterInfo* pIter, SArray* pDelList, TSDBROW* pTSRow, STsdbReader* pReader, bool* freeTSRow); static int32_t doMergeMemIMemRows(TSDBROW* pRow, TSDBROW* piRow, STableBlockScanInfo* pBlockScanInfo, STsdbReader* pReader, SRow** pTSRow); static int32_t mergeRowsInFileBlocks(SBlockData* pBlockData, STableBlockScanInfo* pBlockScanInfo, int64_t key, STsdbReader* pReader); static int32_t initDelSkylineIterator(STableBlockScanInfo* pBlockScanInfo, STsdbReader* pReader, STbData* pMemTbData, STbData* piMemTbData); static STsdb* getTsdbByRetentions(SVnode* pVnode, TSKEY winSKey, SRetention* retentions, const char* idstr, int8_t* pLevel); static SVersionRange getQueryVerRange(SVnode* pVnode, SQueryTableDataCond* pCond, int8_t level); static int64_t getCurrentKeyInLastBlock(SLastBlockReader* pLastBlockReader); static bool hasDataInLastBlock(SLastBlockReader* pLastBlockReader); static int32_t doBuildDataBlock(STsdbReader* pReader); static TSDBKEY getCurrentKeyInBuf(STableBlockScanInfo* pScanInfo, STsdbReader* pReader); static bool hasDataInFileBlock(const SBlockData* pBlockData, const SFileBlockDumpInfo* pDumpInfo); static void initBlockDumpInfo(STsdbReader* pReader, SDataBlockIter* pBlockIter); static int32_t getInitialDelIndex(const SArray* pDelSkyline, int32_t order); static STableBlockScanInfo* getTableBlockScanInfo(SHashObj* pTableMap, uint64_t uid, const char* id); static FORCE_INLINE STSchema* getLatestTableSchema(STsdbReader* pReader, uint64_t uid); static bool outOfTimeWindow(int64_t ts, STimeWindow* pWindow) { return (ts > pWindow->ekey) || (ts < pWindow->skey); } static int32_t setColumnIdSlotList(SBlockLoadSuppInfo* pSupInfo, SColumnInfo* pCols, const int32_t* pSlotIdList, int32_t numOfCols) { pSupInfo->smaValid = true; pSupInfo->numOfCols = numOfCols; pSupInfo->colId = taosMemoryMalloc(numOfCols * (sizeof(int16_t) * 2 + POINTER_BYTES)); if (pSupInfo->colId == NULL) { taosMemoryFree(pSupInfo->colId); return TSDB_CODE_OUT_OF_MEMORY; } pSupInfo->slotId = (int16_t*)((char*)pSupInfo->colId + (sizeof(int16_t) * numOfCols)); pSupInfo->buildBuf = (char**)((char*)pSupInfo->slotId + (sizeof(int16_t) * numOfCols)); for (int32_t i = 0; i < numOfCols; ++i) { pSupInfo->colId[i] = pCols[i].colId; pSupInfo->slotId[i] = pSlotIdList[i]; if (IS_VAR_DATA_TYPE(pCols[i].type)) { pSupInfo->buildBuf[i] = taosMemoryMalloc(pCols[i].bytes); } else { pSupInfo->buildBuf[i] = NULL; } } return TSDB_CODE_SUCCESS; } static int32_t updateBlockSMAInfo(STSchema* pSchema, SBlockLoadSuppInfo* pSupInfo) { int32_t i = 0, j = 0; while (i < pSchema->numOfCols && j < pSupInfo->numOfCols) { STColumn* pTCol = &pSchema->columns[i]; if (pTCol->colId == pSupInfo->colId[j]) { if (!IS_BSMA_ON(pTCol)) { pSupInfo->smaValid = false; return TSDB_CODE_SUCCESS; } i += 1; j += 1; } else if (pTCol->colId < pSupInfo->colId[j]) { // do nothing i += 1; } else { return TSDB_CODE_INVALID_PARA; } } return TSDB_CODE_SUCCESS; } static int32_t initBlockScanInfoBuf(SBlockInfoBuf* pBuf, int32_t numOfTables) { int32_t num = numOfTables / pBuf->numPerBucket; int32_t remainder = numOfTables % pBuf->numPerBucket; if (pBuf->pData == NULL) { pBuf->pData = taosArrayInit(num + 1, POINTER_BYTES); } for (int32_t i = 0; i < num; ++i) { char* p = taosMemoryCalloc(pBuf->numPerBucket, sizeof(STableBlockScanInfo)); if (p == NULL) { return TSDB_CODE_OUT_OF_MEMORY; } taosArrayPush(pBuf->pData, &p); } if (remainder > 0) { char* p = taosMemoryCalloc(remainder, sizeof(STableBlockScanInfo)); if (p == NULL) { return TSDB_CODE_OUT_OF_MEMORY; } taosArrayPush(pBuf->pData, &p); } pBuf->numOfTables = numOfTables; return TSDB_CODE_SUCCESS; } static int32_t ensureBlockScanInfoBuf(SBlockInfoBuf* pBuf, int32_t numOfTables) { if (numOfTables <= pBuf->numOfTables) { return TSDB_CODE_SUCCESS; } if (pBuf->numOfTables > 0) { STableBlockScanInfo** p = (STableBlockScanInfo**)taosArrayPop(pBuf->pData); taosMemoryFree(*p); pBuf->numOfTables /= pBuf->numPerBucket; } int32_t num = (numOfTables - pBuf->numOfTables) / pBuf->numPerBucket; int32_t remainder = (numOfTables - pBuf->numOfTables) % pBuf->numPerBucket; if (pBuf->pData == NULL) { pBuf->pData = taosArrayInit(num + 1, POINTER_BYTES); } for (int32_t i = 0; i < num; ++i) { char* p = taosMemoryCalloc(pBuf->numPerBucket, sizeof(STableBlockScanInfo)); if (p == NULL) { return TSDB_CODE_OUT_OF_MEMORY; } taosArrayPush(pBuf->pData, &p); } if (remainder > 0) { char* p = taosMemoryCalloc(remainder, sizeof(STableBlockScanInfo)); if (p == NULL) { return TSDB_CODE_OUT_OF_MEMORY; } taosArrayPush(pBuf->pData, &p); } pBuf->numOfTables = numOfTables; return TSDB_CODE_SUCCESS; } static void clearBlockScanInfoBuf(SBlockInfoBuf* pBuf) { size_t num = taosArrayGetSize(pBuf->pData); for (int32_t i = 0; i < num; ++i) { char** p = taosArrayGet(pBuf->pData, i); taosMemoryFree(*p); } taosArrayDestroy(pBuf->pData); } static void* getPosInBlockInfoBuf(SBlockInfoBuf* pBuf, int32_t index) { int32_t bucketIndex = index / pBuf->numPerBucket; char** pBucket = taosArrayGet(pBuf->pData, bucketIndex); return (*pBucket) + (index % pBuf->numPerBucket) * sizeof(STableBlockScanInfo); } static int32_t uidComparFunc(const void* p1, const void* p2) { uint64_t pu1 = *(uint64_t*)p1; uint64_t pu2 = *(uint64_t*)p2; if (pu1 == pu2) { return 0; } else { return (pu1 < pu2) ? -1 : 1; } } // NOTE: speedup the whole processing by preparing the buffer for STableBlockScanInfo in batch model static SHashObj* createDataBlockScanInfo(STsdbReader* pTsdbReader, SBlockInfoBuf* pBuf, const STableKeyInfo* idList, STableUidList* pUidList, int32_t numOfTables) { // allocate buffer in order to load data blocks from file // todo use simple hash instead, optimize the memory consumption SHashObj* pTableMap = taosHashInit(numOfTables, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_NO_LOCK); if (pTableMap == NULL) { return NULL; } int64_t st = taosGetTimestampUs(); initBlockScanInfoBuf(pBuf, numOfTables); pUidList->tableUidList = taosMemoryMalloc(numOfTables * sizeof(uint64_t)); if (pUidList->tableUidList == NULL) { taosHashCleanup(pTableMap); return NULL; } pUidList->currentIndex = 0; for (int32_t j = 0; j < numOfTables; ++j) { STableBlockScanInfo* pScanInfo = getPosInBlockInfoBuf(pBuf, j); pScanInfo->uid = idList[j].uid; pUidList->tableUidList[j] = idList[j].uid; if (ASCENDING_TRAVERSE(pTsdbReader->order)) { int64_t skey = pTsdbReader->window.skey; pScanInfo->lastKey = (skey > INT64_MIN) ? (skey - 1) : skey; pScanInfo->lastKeyInStt = skey; } else { int64_t ekey = pTsdbReader->window.ekey; pScanInfo->lastKey = (ekey < INT64_MAX) ? (ekey + 1) : ekey; pScanInfo->lastKeyInStt = ekey; } taosHashPut(pTableMap, &pScanInfo->uid, sizeof(uint64_t), &pScanInfo, POINTER_BYTES); tsdbTrace("%p check table uid:%" PRId64 " from lastKey:%" PRId64 " %s", pTsdbReader, pScanInfo->uid, pScanInfo->lastKey, pTsdbReader->idStr); } taosSort(pUidList->tableUidList, numOfTables, sizeof(uint64_t), uidComparFunc); pTsdbReader->cost.createScanInfoList = (taosGetTimestampUs() - st) / 1000.0; tsdbDebug("%p create %d tables scan-info, size:%.2f Kb, elapsed time:%.2f ms, %s", pTsdbReader, numOfTables, (sizeof(STableBlockScanInfo) * numOfTables) / 1024.0, pTsdbReader->cost.createScanInfoList, pTsdbReader->idStr); return pTableMap; } static void resetAllDataBlockScanInfo(SHashObj* pTableMap, int64_t ts, int32_t step) { STableBlockScanInfo** p = NULL; while ((p = taosHashIterate(pTableMap, p)) != NULL) { STableBlockScanInfo* pInfo = *(STableBlockScanInfo**)p; pInfo->iterInit = false; pInfo->iter.hasVal = false; pInfo->iiter.hasVal = false; if (pInfo->iter.iter != NULL) { pInfo->iter.iter = tsdbTbDataIterDestroy(pInfo->iter.iter); } if (pInfo->iiter.iter != NULL) { pInfo->iiter.iter = tsdbTbDataIterDestroy(pInfo->iiter.iter); } pInfo->delSkyline = taosArrayDestroy(pInfo->delSkyline); pInfo->lastKey = ts; pInfo->lastKeyInStt = ts + step; } } static void clearBlockScanInfo(STableBlockScanInfo* p) { p->iterInit = false; p->iter.hasVal = false; p->iiter.hasVal = false; if (p->iter.iter != NULL) { p->iter.iter = tsdbTbDataIterDestroy(p->iter.iter); } if (p->iiter.iter != NULL) { p->iiter.iter = tsdbTbDataIterDestroy(p->iiter.iter); } p->delSkyline = taosArrayDestroy(p->delSkyline); p->pBlockList = taosArrayDestroy(p->pBlockList); tMapDataClear(&p->mapData); } static void destroyAllBlockScanInfo(SHashObj* pTableMap) { void* p = NULL; while ((p = taosHashIterate(pTableMap, p)) != NULL) { clearBlockScanInfo(*(STableBlockScanInfo**)p); } taosHashCleanup(pTableMap); } static bool isEmptyQueryTimeWindow(STimeWindow* pWindow) { return pWindow->skey > pWindow->ekey; } // Update the query time window according to the data time to live(TTL) information, in order to avoid to return // the expired data to client, even it is queried already. static STimeWindow updateQueryTimeWindow(STsdb* pTsdb, STimeWindow* pWindow) { STsdbKeepCfg* pCfg = &pTsdb->keepCfg; int64_t now = taosGetTimestamp(pCfg->precision); int64_t earilyTs = now - (tsTickPerMin[pCfg->precision] * pCfg->keep2) + 1; // needs to add one tick STimeWindow win = *pWindow; if (win.skey < earilyTs) { win.skey = earilyTs; } return win; } // init file iterator static int32_t initFilesetIterator(SFilesetIter* pIter, SArray* aDFileSet, STsdbReader* pReader) { size_t numOfFileset = taosArrayGetSize(aDFileSet); pIter->index = ASCENDING_TRAVERSE(pReader->order) ? -1 : numOfFileset; pIter->order = pReader->order; pIter->pFileList = aDFileSet; pIter->numOfFiles = numOfFileset; if (pIter->pLastBlockReader == NULL) { pIter->pLastBlockReader = taosMemoryCalloc(1, sizeof(struct SLastBlockReader)); if (pIter->pLastBlockReader == NULL) { int32_t code = TSDB_CODE_OUT_OF_MEMORY; tsdbError("failed to prepare the last block iterator, since:%s %s", tstrerror(code), pReader->idStr); return code; } } SLastBlockReader* pLReader = pIter->pLastBlockReader; pLReader->order = pReader->order; pLReader->window = pReader->window; pLReader->verRange = pReader->verRange; pLReader->uid = 0; tMergeTreeClose(&pLReader->mergeTree); if (pLReader->pInfo == NULL) { // here we ignore the first column, which is always be the primary timestamp column SBlockLoadSuppInfo* pInfo = &pReader->suppInfo; int32_t numOfStt = pReader->pTsdb->pVnode->config.sttTrigger; pLReader->pInfo = tCreateLastBlockLoadInfo(pReader->pSchema, &pInfo->colId[1], pInfo->numOfCols - 1, numOfStt); if (pLReader->pInfo == NULL) { tsdbDebug("init fileset iterator failed, code:%s %s", tstrerror(terrno), pReader->idStr); return terrno; } } tsdbDebug("init fileset iterator, total files:%d %s", pIter->numOfFiles, pReader->idStr); return TSDB_CODE_SUCCESS; } static int32_t filesetIteratorNext(SFilesetIter* pIter, STsdbReader* pReader, bool* hasNext) { bool asc = ASCENDING_TRAVERSE(pIter->order); int32_t step = asc ? 1 : -1; pIter->index += step; int32_t code = 0; if ((asc && pIter->index >= pIter->numOfFiles) || ((!asc) && pIter->index < 0)) { *hasNext = false; return TSDB_CODE_SUCCESS; } SIOCostSummary* pSum = &pReader->cost; getLastBlockLoadInfo(pIter->pLastBlockReader->pInfo, &pSum->lastBlockLoad, &pReader->cost.lastBlockLoadTime); pIter->pLastBlockReader->uid = 0; tMergeTreeClose(&pIter->pLastBlockReader->mergeTree); resetLastBlockLoadInfo(pIter->pLastBlockReader->pInfo); // check file the time range of coverage STimeWindow win = {0}; while (1) { if (pReader->pFileReader != NULL) { tsdbDataFReaderClose(&pReader->pFileReader); } pReader->status.pCurrentFileset = (SDFileSet*)taosArrayGet(pIter->pFileList, pIter->index); code = tsdbDataFReaderOpen(&pReader->pFileReader, pReader->pTsdb, pReader->status.pCurrentFileset); if (code != TSDB_CODE_SUCCESS) { goto _err; } pReader->cost.headFileLoad += 1; int32_t fid = pReader->status.pCurrentFileset->fid; tsdbFidKeyRange(fid, pReader->pTsdb->keepCfg.days, pReader->pTsdb->keepCfg.precision, &win.skey, &win.ekey); // current file are no longer overlapped with query time window, ignore remain files if ((asc && win.skey > pReader->window.ekey) || (!asc && win.ekey < pReader->window.skey)) { tsdbDebug("%p remain files are not qualified for qrange:%" PRId64 "-%" PRId64 ", ignore, %s", pReader, pReader->window.skey, pReader->window.ekey, pReader->idStr); *hasNext = false; return TSDB_CODE_SUCCESS; } if ((asc && (win.ekey < pReader->window.skey)) || ((!asc) && (win.skey > pReader->window.ekey))) { pIter->index += step; if ((asc && pIter->index >= pIter->numOfFiles) || ((!asc) && pIter->index < 0)) { *hasNext = false; return TSDB_CODE_SUCCESS; } continue; } tsdbDebug("%p file found fid:%d for qrange:%" PRId64 "-%" PRId64 ", %s", pReader, fid, pReader->window.skey, pReader->window.ekey, pReader->idStr); *hasNext = true; return TSDB_CODE_SUCCESS; } _err: *hasNext = false; return code; } static void resetDataBlockIterator(SDataBlockIter* pIter, int32_t order) { pIter->order = order; pIter->index = -1; pIter->numOfBlocks = 0; if (pIter->blockList == NULL) { pIter->blockList = taosArrayInit(4, sizeof(SFileDataBlockInfo)); } else { taosArrayClear(pIter->blockList); } } static void cleanupDataBlockIterator(SDataBlockIter* pIter) { taosArrayDestroy(pIter->blockList); } static void initReaderStatus(SReaderStatus* pStatus) { pStatus->pTableIter = NULL; pStatus->loadFromFile = true; } static SSDataBlock* createResBlock(SQueryTableDataCond* pCond, int32_t capacity) { SSDataBlock* pResBlock = createDataBlock(); if (pResBlock == NULL) { terrno = TSDB_CODE_OUT_OF_MEMORY; return NULL; } for (int32_t i = 0; i < pCond->numOfCols; ++i) { SColumnInfoData colInfo = {0}; colInfo.info = pCond->colList[i]; blockDataAppendColInfo(pResBlock, &colInfo); } int32_t code = blockDataEnsureCapacity(pResBlock, capacity); if (code != TSDB_CODE_SUCCESS) { terrno = code; taosMemoryFree(pResBlock); return NULL; } return pResBlock; } static int32_t tsdbInitReaderLock(STsdbReader* pReader) { int32_t code = -1; qTrace("tsdb/read: %p, pre-init read mutex: %p, code: %d", pReader, &pReader->readerMutex, code); code = taosThreadMutexInit(&pReader->readerMutex, NULL); qTrace("tsdb/read: %p, post-init read mutex: %p, code: %d", pReader, &pReader->readerMutex, code); return code; } static int32_t tsdbUninitReaderLock(STsdbReader* pReader) { int32_t code = -1; qTrace("tsdb/read: %p, pre-uninit read mutex: %p, code: %d", pReader, &pReader->readerMutex, code); code = taosThreadMutexDestroy(&pReader->readerMutex); qTrace("tsdb/read: %p, post-uninit read mutex: %p, code: %d", pReader, &pReader->readerMutex, code); return code; } static int32_t tsdbAcquireReader(STsdbReader* pReader) { int32_t code = -1; qTrace("tsdb/read: %p, pre-take read mutex: %p, code: %d", pReader, &pReader->readerMutex, code); code = taosThreadMutexLock(&pReader->readerMutex); qTrace("tsdb/read: %p, post-take read mutex: %p, code: %d", pReader, &pReader->readerMutex, code); return code; } static int32_t tsdbTryAcquireReader(STsdbReader* pReader) { int32_t code = -1; qTrace("tsdb/read: %p, pre-trytake read mutex: %p, code: %d", pReader, &pReader->readerMutex, code); code = taosThreadMutexTryLock(&pReader->readerMutex); qTrace("tsdb/read: %p, post-trytake read mutex: %p, code: %d", pReader, &pReader->readerMutex, code); return code; } static int32_t tsdbReleaseReader(STsdbReader* pReader) { int32_t code = -1; qTrace("tsdb/read: %p, pre-untake read mutex: %p, code: %d", pReader, &pReader->readerMutex, code); code = taosThreadMutexUnlock(&pReader->readerMutex); qTrace("tsdb/read: %p, post-untake read mutex: %p, code: %d", pReader, &pReader->readerMutex, code); return code; } void tsdbReleaseDataBlock(STsdbReader* pReader) { SReaderStatus* pStatus = &pReader->status; if (!pStatus->composedDataBlock) { tsdbReleaseReader(pReader); } } static int32_t tsdbReaderCreate(SVnode* pVnode, SQueryTableDataCond* pCond, STsdbReader** ppReader, int32_t capacity, SSDataBlock* pResBlock, const char* idstr) { int32_t code = 0; int8_t level = 0; STsdbReader* pReader = (STsdbReader*)taosMemoryCalloc(1, sizeof(*pReader)); if (pReader == NULL) { code = TSDB_CODE_OUT_OF_MEMORY; goto _end; } if (VND_IS_TSMA(pVnode)) { tsdbDebug("vgId:%d, tsma is selected to query, %s", TD_VID(pVnode), idstr); } initReaderStatus(&pReader->status); pReader->pTsdb = getTsdbByRetentions(pVnode, pCond->twindows.skey, pVnode->config.tsdbCfg.retentions, idstr, &level); pReader->suid = pCond->suid; pReader->order = pCond->order; pReader->capacity = capacity; pReader->pResBlock = pResBlock; pReader->idStr = (idstr != NULL) ? taosStrdup(idstr) : NULL; pReader->verRange = getQueryVerRange(pVnode, pCond, level); pReader->type = pCond->type; pReader->window = updateQueryTimeWindow(pReader->pTsdb, &pCond->twindows); pReader->blockInfoBuf.numPerBucket = 1000; // 1000 tables per bucket if (pReader->pResBlock == NULL) { pReader->freeBlock = true; pReader->pResBlock = createResBlock(pCond, pReader->capacity); if (pReader->pResBlock == NULL) { code = terrno; goto _end; } } if (pCond->numOfCols <= 0) { tsdbError("vgId:%d, invalid column number %d in query cond, %s", TD_VID(pVnode), pCond->numOfCols, idstr); code = TSDB_CODE_INVALID_PARA; goto _end; } // allocate buffer in order to load data blocks from file SBlockLoadSuppInfo* pSup = &pReader->suppInfo; pSup->pColAgg = taosArrayInit(pCond->numOfCols, sizeof(SColumnDataAgg)); if (pSup->pColAgg == NULL) { code = TSDB_CODE_OUT_OF_MEMORY; goto _end; } pSup->tsColAgg.colId = PRIMARYKEY_TIMESTAMP_COL_ID; code = tBlockDataCreate(&pReader->status.fileBlockData); if (code != TSDB_CODE_SUCCESS) { terrno = code; goto _end; } setColumnIdSlotList(pSup, pCond->colList, pCond->pSlotList, pCond->numOfCols); tsdbInitReaderLock(pReader); *ppReader = pReader; return code; _end: tsdbReaderClose(pReader); *ppReader = NULL; return code; } static int32_t doLoadBlockIndex(STsdbReader* pReader, SDataFReader* pFileReader, SArray* pIndexList) { int64_t st = taosGetTimestampUs(); LRUHandle* handle = NULL; int32_t code = tsdbCacheGetBlockIdx(pFileReader->pTsdb->biCache, pFileReader, &handle); if (code != TSDB_CODE_SUCCESS || handle == NULL) { goto _end; } int32_t numOfTables = taosHashGetSize(pReader->status.pTableMap); SArray* aBlockIdx = (SArray*)taosLRUCacheValue(pFileReader->pTsdb->biCache, handle); size_t num = taosArrayGetSize(aBlockIdx); if (num == 0) { tsdbBICacheRelease(pFileReader->pTsdb->biCache, handle); return TSDB_CODE_SUCCESS; } // todo binary search to the start position int64_t et1 = taosGetTimestampUs(); SBlockIdx* pBlockIdx = NULL; STableUidList* pList = &pReader->status.uidList; int32_t i = 0, j = 0; while (i < num && j < numOfTables) { pBlockIdx = (SBlockIdx*)taosArrayGet(aBlockIdx, i); if (pBlockIdx->suid != pReader->suid) { i += 1; continue; } if (pBlockIdx->uid < pList->tableUidList[j]) { i += 1; continue; } if (pBlockIdx->uid > pList->tableUidList[j]) { j += 1; continue; } if (pBlockIdx->uid == pList->tableUidList[j]) { // this block belongs to a table that is not queried. STableBlockScanInfo* pScanInfo = getTableBlockScanInfo(pReader->status.pTableMap, pBlockIdx->uid, pReader->idStr); if (pScanInfo == NULL) { return terrno; } if (pScanInfo->pBlockList == NULL) { pScanInfo->pBlockList = taosArrayInit(4, sizeof(SBlockIndex)); } taosArrayPush(pIndexList, pBlockIdx); i += 1; j += 1; } } int64_t et2 = taosGetTimestampUs(); tsdbDebug("load block index for %d/%d tables completed, elapsed time:%.2f ms, set blockIdx:%.2f ms, size:%.2f Kb %s", numOfTables, (int32_t)num, (et1 - st) / 1000.0, (et2 - et1) / 1000.0, num * sizeof(SBlockIdx) / 1024.0, pReader->idStr); pReader->cost.headFileLoadTime += (et1 - st) / 1000.0; _end: tsdbBICacheRelease(pFileReader->pTsdb->biCache, handle); return code; } static void cleanupTableScanInfo(SHashObj* pTableMap) { STableBlockScanInfo** px = NULL; while (1) { px = taosHashIterate(pTableMap, px); if (px == NULL) { break; } // reset the index in last block when handing a new file tMapDataClear(&(*px)->mapData); taosArrayClear((*px)->pBlockList); } } static int32_t doLoadFileBlock(STsdbReader* pReader, SArray* pIndexList, SBlockNumber* pBlockNum) { int32_t numOfQTable = 0; size_t sizeInDisk = 0; size_t numOfTables = taosArrayGetSize(pIndexList); int64_t st = taosGetTimestampUs(); cleanupTableScanInfo(pReader->status.pTableMap); for (int32_t i = 0; i < numOfTables; ++i) { SBlockIdx* pBlockIdx = taosArrayGet(pIndexList, i); STableBlockScanInfo* pScanInfo = getTableBlockScanInfo(pReader->status.pTableMap, pBlockIdx->uid, pReader->idStr); if (pScanInfo == NULL) { return terrno; } tMapDataReset(&pScanInfo->mapData); tsdbReadDataBlk(pReader->pFileReader, pBlockIdx, &pScanInfo->mapData); taosArrayEnsureCap(pScanInfo->pBlockList, pScanInfo->mapData.nItem); sizeInDisk += pScanInfo->mapData.nData; int32_t step = ASCENDING_TRAVERSE(pReader->order) ? 1 : -1; STimeWindow w = pReader->window; if (ASCENDING_TRAVERSE(pReader->order)) { w.skey = pScanInfo->lastKey + step; } else { w.ekey = pScanInfo->lastKey + step; } if (isEmptyQueryTimeWindow(&w)) { continue; } SDataBlk block = {0}; for (int32_t j = 0; j < pScanInfo->mapData.nItem; ++j) { tGetDataBlk(pScanInfo->mapData.pData + pScanInfo->mapData.aOffset[j], &block); // 1. time range check // if (block.minKey.ts > pReader->window.ekey || block.maxKey.ts < pReader->window.skey) { if (block.minKey.ts > w.ekey || block.maxKey.ts < w.skey) { continue; } // 2. version range check if (block.minVer > pReader->verRange.maxVer || block.maxVer < pReader->verRange.minVer) { continue; } SBlockIndex bIndex = {.ordinalIndex = j, .inFileOffset = block.aSubBlock->offset}; bIndex.window = (STimeWindow){.skey = block.minKey.ts, .ekey = block.maxKey.ts}; void* p1 = taosArrayPush(pScanInfo->pBlockList, &bIndex); if (p1 == NULL) { tMapDataClear(&pScanInfo->mapData); return TSDB_CODE_OUT_OF_MEMORY; } pBlockNum->numOfBlocks += 1; } if (taosArrayGetSize(pScanInfo->pBlockList) > 0) { numOfQTable += 1; } } pBlockNum->numOfLastFiles = pReader->pFileReader->pSet->nSttF; int32_t total = pBlockNum->numOfLastFiles + pBlockNum->numOfBlocks; double el = (taosGetTimestampUs() - st) / 1000.0; tsdbDebug( "load block of %ld tables completed, blocks:%d in %d tables, last-files:%d, block-info-size:%.2f Kb, elapsed " "time:%.2f ms %s", numOfTables, pBlockNum->numOfBlocks, numOfQTable, pBlockNum->numOfLastFiles, sizeInDisk / 1000.0, el, pReader->idStr); pReader->cost.numOfBlocks += total; pReader->cost.headFileLoadTime += el; return TSDB_CODE_SUCCESS; } static void setBlockAllDumped(SFileBlockDumpInfo* pDumpInfo, int64_t maxKey, int32_t order) { int32_t step = ASCENDING_TRAVERSE(order) ? 1 : -1; pDumpInfo->allDumped = true; pDumpInfo->lastKey = maxKey + step; } static void doCopyColVal(SColumnInfoData* pColInfoData, int32_t rowIndex, int32_t colIndex, SColVal* pColVal, SBlockLoadSuppInfo* pSup) { if (IS_VAR_DATA_TYPE(pColVal->type)) { if (!COL_VAL_IS_VALUE(pColVal)) { colDataSetNULL(pColInfoData, rowIndex); } else { varDataSetLen(pSup->buildBuf[colIndex], pColVal->value.nData); ASSERT(pColVal->value.nData <= pColInfoData->info.bytes); if (pColVal->value.nData > 0) { // pData may be null, if nData is 0 memcpy(varDataVal(pSup->buildBuf[colIndex]), pColVal->value.pData, pColVal->value.nData); } colDataSetVal(pColInfoData, rowIndex, pSup->buildBuf[colIndex], false); } } else { colDataSetVal(pColInfoData, rowIndex, (const char*)&pColVal->value, !COL_VAL_IS_VALUE(pColVal)); } } static SFileDataBlockInfo* getCurrentBlockInfo(SDataBlockIter* pBlockIter) { size_t num = taosArrayGetSize(pBlockIter->blockList); if (num == 0) { ASSERT(pBlockIter->numOfBlocks == num); return NULL; } SFileDataBlockInfo* pBlockInfo = taosArrayGet(pBlockIter->blockList, pBlockIter->index); return pBlockInfo; } static SDataBlk* getCurrentBlock(SDataBlockIter* pBlockIter) { return &pBlockIter->block; } static int doBinarySearchKey(TSKEY* keyList, int num, int pos, TSKEY key, int order) { // start end position int s, e; s = pos; // check ASSERT(pos >= 0 && pos < num && num > 0); if (order == TSDB_ORDER_ASC) { // find the first position which is smaller than the key e = num - 1; if (key < keyList[pos]) return -1; while (1) { // check can return if (key >= keyList[e]) return e; if (key <= keyList[s]) return s; if (e - s <= 1) return s; // change start or end position int mid = s + (e - s + 1) / 2; if (keyList[mid] > key) e = mid; else if (keyList[mid] < key) s = mid; else return mid; } } else { // DESC // find the first position which is bigger than the key e = 0; if (key > keyList[pos]) return -1; while (1) { // check can return if (key <= keyList[e]) return e; if (key >= keyList[s]) return s; if (s - e <= 1) return s; // change start or end position int mid = s - (s - e + 1) / 2; if (keyList[mid] < key) e = mid; else if (keyList[mid] > key) s = mid; else return mid; } } } static int32_t getEndPosInDataBlock(STsdbReader* pReader, SBlockData* pBlockData, SDataBlk* pBlock, int32_t pos) { // NOTE: reverse the order to find the end position in data block int32_t endPos = -1; bool asc = ASCENDING_TRAVERSE(pReader->order); if (asc && pReader->window.ekey >= pBlock->maxKey.ts) { endPos = pBlock->nRow - 1; } else if (!asc && pReader->window.skey <= pBlock->minKey.ts) { endPos = 0; } else { int64_t key = asc ? pReader->window.ekey : pReader->window.skey; endPos = doBinarySearchKey(pBlockData->aTSKEY, pBlock->nRow, pos, key, pReader->order); } return endPos; } static void copyPrimaryTsCol(const SBlockData* pBlockData, SFileBlockDumpInfo* pDumpInfo, SColumnInfoData* pColData, int32_t dumpedRows, bool asc) { if (asc) { memcpy(pColData->pData, &pBlockData->aTSKEY[pDumpInfo->rowIndex], dumpedRows * sizeof(int64_t)); } else { int32_t startIndex = pDumpInfo->rowIndex - dumpedRows + 1; memcpy(pColData->pData, &pBlockData->aTSKEY[startIndex], dumpedRows * sizeof(int64_t)); // todo: opt perf by extract the loop // reverse the array list int32_t mid = dumpedRows >> 1u; int64_t* pts = (int64_t*)pColData->pData; for (int32_t j = 0; j < mid; ++j) { int64_t t = pts[j]; pts[j] = pts[dumpedRows - j - 1]; pts[dumpedRows - j - 1] = t; } } } // a faster version of copy procedure. static void copyNumericCols(const SColData* pData, SFileBlockDumpInfo* pDumpInfo, SColumnInfoData* pColData, int32_t dumpedRows, bool asc) { uint8_t* p = NULL; if (asc) { p = pData->pData + tDataTypes[pData->type].bytes * pDumpInfo->rowIndex; } else { int32_t startIndex = pDumpInfo->rowIndex - dumpedRows + 1; p = pData->pData + tDataTypes[pData->type].bytes * startIndex; } int32_t step = asc ? 1 : -1; // make sure it is aligned to 8bit, the allocated memory address is aligned to 256bit // ASSERT((((uint64_t)pColData->pData) & (0x8 - 1)) == 0); // 1. copy data in a batch model memcpy(pColData->pData, p, dumpedRows * tDataTypes[pData->type].bytes); // 2. reverse the array list in case of descending order scan data block if (!asc) { switch (pColData->info.type) { case TSDB_DATA_TYPE_TIMESTAMP: case TSDB_DATA_TYPE_DOUBLE: case TSDB_DATA_TYPE_BIGINT: case TSDB_DATA_TYPE_UBIGINT: { int32_t mid = dumpedRows >> 1u; int64_t* pts = (int64_t*)pColData->pData; for (int32_t j = 0; j < mid; ++j) { int64_t t = pts[j]; pts[j] = pts[dumpedRows - j - 1]; pts[dumpedRows - j - 1] = t; } break; } case TSDB_DATA_TYPE_BOOL: case TSDB_DATA_TYPE_TINYINT: case TSDB_DATA_TYPE_UTINYINT: { int32_t mid = dumpedRows >> 1u; int8_t* pts = (int8_t*)pColData->pData; for (int32_t j = 0; j < mid; ++j) { int8_t t = pts[j]; pts[j] = pts[dumpedRows - j - 1]; pts[dumpedRows - j - 1] = t; } break; } case TSDB_DATA_TYPE_SMALLINT: case TSDB_DATA_TYPE_USMALLINT: { int32_t mid = dumpedRows >> 1u; int16_t* pts = (int16_t*)pColData->pData; for (int32_t j = 0; j < mid; ++j) { int64_t t = pts[j]; pts[j] = pts[dumpedRows - j - 1]; pts[dumpedRows - j - 1] = t; } break; } case TSDB_DATA_TYPE_FLOAT: case TSDB_DATA_TYPE_INT: case TSDB_DATA_TYPE_UINT: { int32_t mid = dumpedRows >> 1u; int32_t* pts = (int32_t*)pColData->pData; for (int32_t j = 0; j < mid; ++j) { int32_t t = pts[j]; pts[j] = pts[dumpedRows - j - 1]; pts[dumpedRows - j - 1] = t; } break; } } } // 3. if the null value exists, check items one-by-one if (pData->flag != HAS_VALUE) { int32_t rowIndex = 0; for (int32_t j = pDumpInfo->rowIndex; rowIndex < dumpedRows; j += step, rowIndex++) { uint8_t v = tColDataGetBitValue(pData, j); if (v == 0 || v == 1) { colDataSetNull_f(pColData->nullbitmap, rowIndex); pColData->hasNull = true; } } } } static int32_t copyBlockDataToSDataBlock(STsdbReader* pReader) { SReaderStatus* pStatus = &pReader->status; SDataBlockIter* pBlockIter = &pStatus->blockIter; SBlockLoadSuppInfo* pSupInfo = &pReader->suppInfo; SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; SBlockData* pBlockData = &pStatus->fileBlockData; SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter); SDataBlk* pBlock = getCurrentBlock(pBlockIter); SSDataBlock* pResBlock = pReader->pResBlock; int32_t numOfOutputCols = pSupInfo->numOfCols; SColVal cv = {0}; int64_t st = taosGetTimestampUs(); bool asc = ASCENDING_TRAVERSE(pReader->order); int32_t step = asc ? 1 : -1; // no data exists, return directly. if (pBlockData->nRow == 0 || pBlockData->aTSKEY == 0) { tsdbWarn("%p no need to copy since no data in blockData, table uid:%" PRIu64 " has been dropped, %s", pReader, pBlockInfo->uid, pReader->idStr); pResBlock->info.rows = 0; return 0; } if ((pDumpInfo->rowIndex == 0 && asc) || (pDumpInfo->rowIndex == pBlock->nRow - 1 && (!asc))) { if (asc && pReader->window.skey <= pBlock->minKey.ts) { // pDumpInfo->rowIndex = 0; } else if (!asc && pReader->window.ekey >= pBlock->maxKey.ts) { // pDumpInfo->rowIndex = pBlock->nRow - 1; } else { // find the appropriate the start position in current block, and set it to be the current rowIndex int32_t pos = asc ? pBlock->nRow - 1 : 0; int32_t order = asc ? TSDB_ORDER_DESC : TSDB_ORDER_ASC; int64_t key = asc ? pReader->window.skey : pReader->window.ekey; pDumpInfo->rowIndex = doBinarySearchKey(pBlockData->aTSKEY, pBlock->nRow, pos, key, order); if (pDumpInfo->rowIndex < 0) { tsdbError( "%p failed to locate the start position in current block, global index:%d, table index:%d, brange:%" PRId64 "-%" PRId64 ", minVer:%" PRId64 ", maxVer:%" PRId64 " %s", pReader, pBlockIter->index, pBlockInfo->tbBlockIdx, pBlock->minKey.ts, pBlock->maxKey.ts, pBlock->minVer, pBlock->maxVer, pReader->idStr); return TSDB_CODE_INVALID_PARA; } } } // time window check int32_t endIndex = getEndPosInDataBlock(pReader, pBlockData, pBlock, pDumpInfo->rowIndex); if (endIndex == -1) { setBlockAllDumped(pDumpInfo, pReader->window.ekey, pReader->order); return TSDB_CODE_SUCCESS; } endIndex += step; int32_t dumpedRows = asc ? (endIndex - pDumpInfo->rowIndex) : (pDumpInfo->rowIndex - endIndex); if (dumpedRows > pReader->capacity) { // output buffer check dumpedRows = pReader->capacity; } int32_t i = 0; int32_t rowIndex = 0; SColumnInfoData* pColData = taosArrayGet(pResBlock->pDataBlock, pSupInfo->slotId[i]); if (pSupInfo->colId[i] == PRIMARYKEY_TIMESTAMP_COL_ID) { copyPrimaryTsCol(pBlockData, pDumpInfo, pColData, dumpedRows, asc); i += 1; } int32_t colIndex = 0; int32_t num = pBlockData->nColData; while (i < numOfOutputCols && colIndex < num) { rowIndex = 0; SColData* pData = tBlockDataGetColDataByIdx(pBlockData, colIndex); if (pData->cid < pSupInfo->colId[i]) { colIndex += 1; } else if (pData->cid == pSupInfo->colId[i]) { pColData = taosArrayGet(pResBlock->pDataBlock, pSupInfo->slotId[i]); if (pData->flag == HAS_NONE || pData->flag == HAS_NULL || pData->flag == (HAS_NULL | HAS_NONE)) { colDataSetNNULL(pColData, 0, dumpedRows); } else { if (IS_MATHABLE_TYPE(pColData->info.type)) { copyNumericCols(pData, pDumpInfo, pColData, dumpedRows, asc); } else { // varchar/nchar type for (int32_t j = pDumpInfo->rowIndex; rowIndex < dumpedRows; j += step) { tColDataGetValue(pData, j, &cv); doCopyColVal(pColData, rowIndex++, i, &cv, pSupInfo); } } } colIndex += 1; i += 1; } else { // the specified column does not exist in file block, fill with null data pColData = taosArrayGet(pResBlock->pDataBlock, pSupInfo->slotId[i]); colDataSetNNULL(pColData, 0, dumpedRows); i += 1; } } // fill the mis-matched columns with null value while (i < numOfOutputCols) { pColData = taosArrayGet(pResBlock->pDataBlock, pSupInfo->slotId[i]); colDataSetNNULL(pColData, 0, dumpedRows); i += 1; } pResBlock->info.dataLoad = 1; pResBlock->info.rows = dumpedRows; pDumpInfo->rowIndex += step * dumpedRows; // check if current block are all handled if (pDumpInfo->rowIndex >= 0 && pDumpInfo->rowIndex < pBlock->nRow) { int64_t ts = pBlockData->aTSKEY[pDumpInfo->rowIndex]; if (outOfTimeWindow(ts, &pReader->window)) { // the remain data has out of query time window, ignore current block setBlockAllDumped(pDumpInfo, ts, pReader->order); } } else { int64_t ts = asc ? pBlock->maxKey.ts : pBlock->minKey.ts; setBlockAllDumped(pDumpInfo, ts, pReader->order); } double elapsedTime = (taosGetTimestampUs() - st) / 1000.0; pReader->cost.blockLoadTime += elapsedTime; int32_t unDumpedRows = asc ? pBlock->nRow - pDumpInfo->rowIndex : pDumpInfo->rowIndex + 1; tsdbDebug("%p copy file block to sdatablock, global index:%d, table index:%d, brange:%" PRId64 "-%" PRId64 ", rows:%d, remain:%d, minVer:%" PRId64 ", maxVer:%" PRId64 ", uid:%" PRIu64 " elapsed time:%.2f ms, %s", pReader, pBlockIter->index, pBlockInfo->tbBlockIdx, pBlock->minKey.ts, pBlock->maxKey.ts, dumpedRows, unDumpedRows, pBlock->minVer, pBlock->maxVer, pBlockInfo->uid, elapsedTime, pReader->idStr); return TSDB_CODE_SUCCESS; } static int32_t doLoadFileBlockData(STsdbReader* pReader, SDataBlockIter* pBlockIter, SBlockData* pBlockData, uint64_t uid) { int32_t code = 0; int64_t st = taosGetTimestampUs(); tBlockDataReset(pBlockData); STSchema* pSchema = getLatestTableSchema(pReader, uid); if (pSchema == NULL) { tsdbDebug("%p table uid:%" PRIu64 " has been dropped, no data existed, %s", pReader, uid, pReader->idStr); return code; } SBlockLoadSuppInfo* pSup = &pReader->suppInfo; TABLEID tid = {.suid = pReader->suid, .uid = uid}; code = tBlockDataInit(pBlockData, &tid, pSchema, &pSup->colId[1], pSup->numOfCols - 1); if (code != TSDB_CODE_SUCCESS) { return code; } SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter); SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; SDataBlk* pBlock = getCurrentBlock(pBlockIter); code = tsdbReadDataBlock(pReader->pFileReader, pBlock, pBlockData); if (code != TSDB_CODE_SUCCESS) { tsdbError("%p error occurs in loading file block, global index:%d, table index:%d, brange:%" PRId64 "-%" PRId64 ", rows:%d, code:%s %s", pReader, pBlockIter->index, pBlockInfo->tbBlockIdx, pBlock->minKey.ts, pBlock->maxKey.ts, pBlock->nRow, tstrerror(code), pReader->idStr); return code; } double elapsedTime = (taosGetTimestampUs() - st) / 1000.0; tsdbDebug("%p load file block into buffer, global index:%d, index in table block list:%d, brange:%" PRId64 "-%" PRId64 ", rows:%d, minVer:%" PRId64 ", maxVer:%" PRId64 ", elapsed time:%.2f ms, %s", pReader, pBlockIter->index, pBlockInfo->tbBlockIdx, pBlock->minKey.ts, pBlock->maxKey.ts, pBlock->nRow, pBlock->minVer, pBlock->maxVer, elapsedTime, pReader->idStr); pReader->cost.blockLoadTime += elapsedTime; pDumpInfo->allDumped = false; return TSDB_CODE_SUCCESS; } static void cleanupBlockOrderSupporter(SBlockOrderSupporter* pSup) { taosMemoryFreeClear(pSup->numOfBlocksPerTable); taosMemoryFreeClear(pSup->indexPerTable); for (int32_t i = 0; i < pSup->numOfTables; ++i) { SBlockOrderWrapper* pBlockInfo = pSup->pDataBlockInfo[i]; taosMemoryFreeClear(pBlockInfo); } taosMemoryFreeClear(pSup->pDataBlockInfo); } static int32_t initBlockOrderSupporter(SBlockOrderSupporter* pSup, int32_t numOfTables) { pSup->numOfBlocksPerTable = taosMemoryCalloc(1, sizeof(int32_t) * numOfTables); pSup->indexPerTable = taosMemoryCalloc(1, sizeof(int32_t) * numOfTables); pSup->pDataBlockInfo = taosMemoryCalloc(1, POINTER_BYTES * numOfTables); if (pSup->numOfBlocksPerTable == NULL || pSup->indexPerTable == NULL || pSup->pDataBlockInfo == NULL) { cleanupBlockOrderSupporter(pSup); return TSDB_CODE_OUT_OF_MEMORY; } return TSDB_CODE_SUCCESS; } static int32_t fileDataBlockOrderCompar(const void* pLeft, const void* pRight, void* param) { int32_t leftIndex = *(int32_t*)pLeft; int32_t rightIndex = *(int32_t*)pRight; SBlockOrderSupporter* pSupporter = (SBlockOrderSupporter*)param; int32_t leftTableBlockIndex = pSupporter->indexPerTable[leftIndex]; int32_t rightTableBlockIndex = pSupporter->indexPerTable[rightIndex]; if (leftTableBlockIndex > pSupporter->numOfBlocksPerTable[leftIndex]) { /* left block is empty */ return 1; } else if (rightTableBlockIndex > pSupporter->numOfBlocksPerTable[rightIndex]) { /* right block is empty */ return -1; } SBlockOrderWrapper* pLeftBlock = &pSupporter->pDataBlockInfo[leftIndex][leftTableBlockIndex]; SBlockOrderWrapper* pRightBlock = &pSupporter->pDataBlockInfo[rightIndex][rightTableBlockIndex]; return pLeftBlock->offset > pRightBlock->offset ? 1 : -1; } static int32_t doSetCurrentBlock(SDataBlockIter* pBlockIter, const char* idStr) { SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter); if (pBlockInfo != NULL) { STableBlockScanInfo* pScanInfo = getTableBlockScanInfo(pBlockIter->pTableMap, pBlockInfo->uid, idStr); if (pScanInfo == NULL) { return terrno; } SBlockIndex* pIndex = taosArrayGet(pScanInfo->pBlockList, pBlockInfo->tbBlockIdx); tMapDataGetItemByIdx(&pScanInfo->mapData, pIndex->ordinalIndex, &pBlockIter->block, tGetDataBlk); } #if 0 qDebug("check file block, table uid:%"PRIu64" index:%d offset:%"PRId64", ", pScanInfo->uid, *mapDataIndex, pBlockIter->block.aSubBlock[0].offset); #endif return TSDB_CODE_SUCCESS; } static int32_t initBlockIterator(STsdbReader* pReader, SDataBlockIter* pBlockIter, int32_t numOfBlocks) { bool asc = ASCENDING_TRAVERSE(pReader->order); SBlockOrderSupporter sup = {0}; pBlockIter->numOfBlocks = numOfBlocks; taosArrayClear(pBlockIter->blockList); pBlockIter->pTableMap = pReader->status.pTableMap; // access data blocks according to the offset of each block in asc/desc order. int32_t numOfTables = (int32_t)taosHashGetSize(pReader->status.pTableMap); int64_t st = taosGetTimestampUs(); int32_t code = initBlockOrderSupporter(&sup, numOfTables); if (code != TSDB_CODE_SUCCESS) { return code; } int32_t cnt = 0; void* ptr = NULL; while (1) { ptr = taosHashIterate(pReader->status.pTableMap, ptr); if (ptr == NULL) { break; } STableBlockScanInfo* pTableScanInfo = *(STableBlockScanInfo**)ptr; if (pTableScanInfo->pBlockList == NULL || taosArrayGetSize(pTableScanInfo->pBlockList) == 0) { continue; } size_t num = taosArrayGetSize(pTableScanInfo->pBlockList); sup.numOfBlocksPerTable[sup.numOfTables] = num; char* buf = taosMemoryMalloc(sizeof(SBlockOrderWrapper) * num); if (buf == NULL) { cleanupBlockOrderSupporter(&sup); return TSDB_CODE_OUT_OF_MEMORY; } sup.pDataBlockInfo[sup.numOfTables] = (SBlockOrderWrapper*)buf; for (int32_t k = 0; k < num; ++k) { SBlockIndex* pIndex = taosArrayGet(pTableScanInfo->pBlockList, k); sup.pDataBlockInfo[sup.numOfTables][k] = (SBlockOrderWrapper){.uid = pTableScanInfo->uid, .offset = pIndex->inFileOffset}; cnt++; } sup.numOfTables += 1; } if (numOfBlocks != cnt && sup.numOfTables != numOfTables) { cleanupBlockOrderSupporter(&sup); return TSDB_CODE_INVALID_PARA; } // since there is only one table qualified, blocks are not sorted if (sup.numOfTables == 1) { for (int32_t i = 0; i < numOfBlocks; ++i) { SFileDataBlockInfo blockInfo = {.uid = sup.pDataBlockInfo[0][i].uid, .tbBlockIdx = i}; taosArrayPush(pBlockIter->blockList, &blockInfo); } int64_t et = taosGetTimestampUs(); tsdbDebug("%p create blocks info struct completed for one table, %d blocks not sorted, elapsed time:%.2f ms %s", pReader, numOfBlocks, (et - st) / 1000.0, pReader->idStr); pBlockIter->index = asc ? 0 : (numOfBlocks - 1); cleanupBlockOrderSupporter(&sup); doSetCurrentBlock(pBlockIter, pReader->idStr); return TSDB_CODE_SUCCESS; } tsdbDebug("%p create data blocks info struct completed, %d blocks in %d tables %s", pReader, cnt, sup.numOfTables, pReader->idStr); SMultiwayMergeTreeInfo* pTree = NULL; uint8_t ret = tMergeTreeCreate(&pTree, sup.numOfTables, &sup, fileDataBlockOrderCompar); if (ret != TSDB_CODE_SUCCESS) { cleanupBlockOrderSupporter(&sup); return TSDB_CODE_OUT_OF_MEMORY; } int32_t numOfTotal = 0; while (numOfTotal < cnt) { int32_t pos = tMergeTreeGetChosenIndex(pTree); int32_t index = sup.indexPerTable[pos]++; SFileDataBlockInfo blockInfo = {.uid = sup.pDataBlockInfo[pos][index].uid, .tbBlockIdx = index}; taosArrayPush(pBlockIter->blockList, &blockInfo); // set data block index overflow, in order to disable the offset comparator if (sup.indexPerTable[pos] >= sup.numOfBlocksPerTable[pos]) { sup.indexPerTable[pos] = sup.numOfBlocksPerTable[pos] + 1; } numOfTotal += 1; tMergeTreeAdjust(pTree, tMergeTreeGetAdjustIndex(pTree)); } int64_t et = taosGetTimestampUs(); tsdbDebug("%p %d data blocks access order completed, elapsed time:%.2f ms %s", pReader, numOfBlocks, (et - st) / 1000.0, pReader->idStr); cleanupBlockOrderSupporter(&sup); taosMemoryFree(pTree); pBlockIter->index = asc ? 0 : (numOfBlocks - 1); doSetCurrentBlock(pBlockIter, pReader->idStr); return TSDB_CODE_SUCCESS; } static bool blockIteratorNext(SDataBlockIter* pBlockIter, const char* idStr) { bool asc = ASCENDING_TRAVERSE(pBlockIter->order); int32_t step = asc ? 1 : -1; if ((pBlockIter->index >= pBlockIter->numOfBlocks - 1 && asc) || (pBlockIter->index <= 0 && (!asc))) { return false; } pBlockIter->index += step; doSetCurrentBlock(pBlockIter, idStr); return true; } /** * This is an two rectangles overlap cases. */ static int32_t dataBlockPartiallyRequired(STimeWindow* pWindow, SVersionRange* pVerRange, SDataBlk* pBlock) { return (pWindow->ekey < pBlock->maxKey.ts && pWindow->ekey >= pBlock->minKey.ts) || (pWindow->skey > pBlock->minKey.ts && pWindow->skey <= pBlock->maxKey.ts) || (pVerRange->minVer > pBlock->minVer && pVerRange->minVer <= pBlock->maxVer) || (pVerRange->maxVer < pBlock->maxVer && pVerRange->maxVer >= pBlock->minVer); } static bool getNeighborBlockOfSameTable(SFileDataBlockInfo* pBlockInfo, STableBlockScanInfo* pTableBlockScanInfo, int32_t* nextIndex, int32_t order, SBlockIndex* pBlockIndex) { bool asc = ASCENDING_TRAVERSE(order); if (asc && pBlockInfo->tbBlockIdx >= taosArrayGetSize(pTableBlockScanInfo->pBlockList) - 1) { return false; } if (!asc && pBlockInfo->tbBlockIdx == 0) { return false; } int32_t step = asc ? 1 : -1; *nextIndex = pBlockInfo->tbBlockIdx + step; *pBlockIndex = *(SBlockIndex*)taosArrayGet(pTableBlockScanInfo->pBlockList, *nextIndex); // tMapDataGetItemByIdx(&pTableBlockScanInfo->mapData, pIndex->ordinalIndex, pBlock, tGetDataBlk); return true; } static int32_t findFileBlockInfoIndex(SDataBlockIter* pBlockIter, SFileDataBlockInfo* pFBlockInfo) { int32_t step = ASCENDING_TRAVERSE(pBlockIter->order) ? 1 : -1; int32_t index = pBlockIter->index; while (index < pBlockIter->numOfBlocks && index >= 0) { SFileDataBlockInfo* pFBlock = taosArrayGet(pBlockIter->blockList, index); if (pFBlock->uid == pFBlockInfo->uid && pFBlock->tbBlockIdx == pFBlockInfo->tbBlockIdx) { return index; } index += step; } return -1; } static int32_t setFileBlockActiveInBlockIter(SDataBlockIter* pBlockIter, int32_t index, int32_t step) { if (index < 0 || index >= pBlockIter->numOfBlocks) { return -1; } SFileDataBlockInfo fblock = *(SFileDataBlockInfo*)taosArrayGet(pBlockIter->blockList, index); pBlockIter->index += step; if (index != pBlockIter->index) { taosArrayRemove(pBlockIter->blockList, index); taosArrayInsert(pBlockIter->blockList, pBlockIter->index, &fblock); SFileDataBlockInfo* pBlockInfo = taosArrayGet(pBlockIter->blockList, pBlockIter->index); ASSERT(pBlockInfo->uid == fblock.uid && pBlockInfo->tbBlockIdx == fblock.tbBlockIdx); } doSetCurrentBlock(pBlockIter, ""); return TSDB_CODE_SUCCESS; } // todo: this attribute could be acquired during extractin the global ordered block list. static bool overlapWithNeighborBlock(SDataBlk* pBlock, SBlockIndex* pNeighborBlockIndex, int32_t order) { // it is the last block in current file, no chance to overlap with neighbor blocks. if (ASCENDING_TRAVERSE(order)) { return pBlock->maxKey.ts == pNeighborBlockIndex->window.skey; } else { return pBlock->minKey.ts == pNeighborBlockIndex->window.ekey; } } static bool bufferDataInFileBlockGap(int32_t order, TSDBKEY key, SDataBlk* pBlock) { bool ascScan = ASCENDING_TRAVERSE(order); return (ascScan && (key.ts != TSKEY_INITIAL_VAL && key.ts <= pBlock->minKey.ts)) || (!ascScan && (key.ts != TSKEY_INITIAL_VAL && key.ts >= pBlock->maxKey.ts)); } static bool keyOverlapFileBlock(TSDBKEY key, SDataBlk* pBlock, SVersionRange* pVerRange) { return (key.ts >= pBlock->minKey.ts && key.ts <= pBlock->maxKey.ts) && (pBlock->maxVer >= pVerRange->minVer) && (pBlock->minVer <= pVerRange->maxVer); } static bool doCheckforDatablockOverlap(STableBlockScanInfo* pBlockScanInfo, const SDataBlk* pBlock, int32_t startIndex) { size_t num = taosArrayGetSize(pBlockScanInfo->delSkyline); for (int32_t i = startIndex; i < num; i += 1) { TSDBKEY* p = taosArrayGet(pBlockScanInfo->delSkyline, i); if (p->ts >= pBlock->minKey.ts && p->ts <= pBlock->maxKey.ts) { if (p->version >= pBlock->minVer) { return true; } } else if (p->ts < pBlock->minKey.ts) { // p->ts < pBlock->minKey.ts if (p->version >= pBlock->minVer) { if (i < num - 1) { TSDBKEY* pnext = taosArrayGet(pBlockScanInfo->delSkyline, i + 1); if (pnext->ts >= pBlock->minKey.ts) { return true; } } else { // it must be the last point ASSERT(p->version == 0); } } } else { // (p->ts > pBlock->maxKey.ts) { return false; } } return false; } static bool overlapWithDelSkyline(STableBlockScanInfo* pBlockScanInfo, const SDataBlk* pBlock, int32_t order) { if (pBlockScanInfo->delSkyline == NULL) { return false; } // ts is not overlap TSDBKEY* pFirst = taosArrayGet(pBlockScanInfo->delSkyline, 0); TSDBKEY* pLast = taosArrayGetLast(pBlockScanInfo->delSkyline); if (pBlock->minKey.ts > pLast->ts || pBlock->maxKey.ts < pFirst->ts) { return false; } // version is not overlap if (ASCENDING_TRAVERSE(order)) { return doCheckforDatablockOverlap(pBlockScanInfo, pBlock, pBlockScanInfo->fileDelIndex); } else { int32_t index = pBlockScanInfo->fileDelIndex; while (1) { TSDBKEY* p = taosArrayGet(pBlockScanInfo->delSkyline, index); if (p->ts > pBlock->minKey.ts && index > 0) { index -= 1; } else { // find the first point that is smaller than the minKey.ts of dataBlock. break; } } return doCheckforDatablockOverlap(pBlockScanInfo, pBlock, index); } } typedef struct { bool overlapWithNeighborBlock; bool hasDupTs; bool overlapWithDelInfo; bool overlapWithLastBlock; bool overlapWithKeyInBuf; bool partiallyRequired; bool moreThanCapcity; } SDataBlockToLoadInfo; static void getBlockToLoadInfo(SDataBlockToLoadInfo* pInfo, SFileDataBlockInfo* pBlockInfo, SDataBlk* pBlock, STableBlockScanInfo* pScanInfo, TSDBKEY keyInBuf, SLastBlockReader* pLastBlockReader, STsdbReader* pReader) { int32_t neighborIndex = 0; SBlockIndex bIndex = {0}; bool hasNeighbor = getNeighborBlockOfSameTable(pBlockInfo, pScanInfo, &neighborIndex, pReader->order, &bIndex); // overlap with neighbor if (hasNeighbor) { pInfo->overlapWithNeighborBlock = overlapWithNeighborBlock(pBlock, &bIndex, pReader->order); } // has duplicated ts of different version in this block pInfo->hasDupTs = (pBlock->nSubBlock == 1) ? pBlock->hasDup : true; pInfo->overlapWithDelInfo = overlapWithDelSkyline(pScanInfo, pBlock, pReader->order); if (hasDataInLastBlock(pLastBlockReader)) { int64_t tsLast = getCurrentKeyInLastBlock(pLastBlockReader); pInfo->overlapWithLastBlock = !(pBlock->maxKey.ts < tsLast || pBlock->minKey.ts > tsLast); } pInfo->moreThanCapcity = pBlock->nRow > pReader->capacity; pInfo->partiallyRequired = dataBlockPartiallyRequired(&pReader->window, &pReader->verRange, pBlock); pInfo->overlapWithKeyInBuf = keyOverlapFileBlock(keyInBuf, pBlock, &pReader->verRange); } // 1. the version of all rows should be less than the endVersion // 2. current block should not overlap with next neighbor block // 3. current timestamp should not be overlap with each other // 4. output buffer should be large enough to hold all rows in current block // 5. delete info should not overlap with current block data // 6. current block should not contain the duplicated ts static bool fileBlockShouldLoad(STsdbReader* pReader, SFileDataBlockInfo* pBlockInfo, SDataBlk* pBlock, STableBlockScanInfo* pScanInfo, TSDBKEY keyInBuf, SLastBlockReader* pLastBlockReader) { SDataBlockToLoadInfo info = {0}; getBlockToLoadInfo(&info, pBlockInfo, pBlock, pScanInfo, keyInBuf, pLastBlockReader, pReader); bool loadDataBlock = (info.overlapWithNeighborBlock || info.hasDupTs || info.partiallyRequired || info.overlapWithKeyInBuf || info.moreThanCapcity || info.overlapWithDelInfo || info.overlapWithLastBlock); // log the reason why load the datablock for profile if (loadDataBlock) { tsdbDebug("%p uid:%" PRIu64 " need to load the datablock, overlapneighbor:%d, hasDup:%d, partiallyRequired:%d, " "overlapWithKey:%d, greaterThanBuf:%d, overlapWithDel:%d, overlapWithlastBlock:%d, %s", pReader, pBlockInfo->uid, info.overlapWithNeighborBlock, info.hasDupTs, info.partiallyRequired, info.overlapWithKeyInBuf, info.moreThanCapcity, info.overlapWithDelInfo, info.overlapWithLastBlock, pReader->idStr); } return loadDataBlock; } static bool isCleanFileDataBlock(STsdbReader* pReader, SFileDataBlockInfo* pBlockInfo, SDataBlk* pBlock, STableBlockScanInfo* pScanInfo, TSDBKEY keyInBuf, SLastBlockReader* pLastBlockReader) { SDataBlockToLoadInfo info = {0}; getBlockToLoadInfo(&info, pBlockInfo, pBlock, pScanInfo, keyInBuf, pLastBlockReader, pReader); bool isCleanFileBlock = !(info.overlapWithNeighborBlock || info.hasDupTs || info.overlapWithKeyInBuf || info.overlapWithDelInfo || info.overlapWithLastBlock); return isCleanFileBlock; } static int32_t buildDataBlockFromBuf(STsdbReader* pReader, STableBlockScanInfo* pBlockScanInfo, int64_t endKey) { if (!(pBlockScanInfo->iiter.hasVal || pBlockScanInfo->iter.hasVal)) { return TSDB_CODE_SUCCESS; } SSDataBlock* pBlock = pReader->pResBlock; int64_t st = taosGetTimestampUs(); int32_t code = buildDataBlockFromBufImpl(pBlockScanInfo, endKey, pReader->capacity, pReader); blockDataUpdateTsWindow(pBlock, pReader->suppInfo.slotId[0]); pBlock->info.id.uid = pBlockScanInfo->uid; setComposedBlockFlag(pReader, true); double elapsedTime = (taosGetTimestampUs() - st) / 1000.0; tsdbDebug("%p build data block from cache completed, elapsed time:%.2f ms, numOfRows:%d, brange:%" PRId64 " - %" PRId64 ", uid:%" PRIu64 ", %s", pReader, elapsedTime, pBlock->info.rows, pBlock->info.window.skey, pBlock->info.window.ekey, pBlockScanInfo->uid, pReader->idStr); pReader->cost.buildmemBlock += elapsedTime; return code; } static bool tryCopyDistinctRowFromFileBlock(STsdbReader* pReader, SBlockData* pBlockData, int64_t key, SFileBlockDumpInfo* pDumpInfo) { // opt version // 1. it is not a border point // 2. the direct next point is not an duplicated timestamp bool asc = (pReader->order == TSDB_ORDER_ASC); if ((pDumpInfo->rowIndex < pDumpInfo->totalRows - 1 && asc) || (pDumpInfo->rowIndex > 0 && (!asc))) { int32_t step = pReader->order == TSDB_ORDER_ASC ? 1 : -1; int64_t nextKey = pBlockData->aTSKEY[pDumpInfo->rowIndex + step]; if (nextKey != key) { // merge is not needed doAppendRowFromFileBlock(pReader->pResBlock, pReader, pBlockData, pDumpInfo->rowIndex); pDumpInfo->rowIndex += step; return true; } } return false; } static bool nextRowFromLastBlocks(SLastBlockReader* pLastBlockReader, STableBlockScanInfo* pScanInfo, SVersionRange* pVerRange) { int32_t step = ASCENDING_TRAVERSE(pLastBlockReader->order) ? 1 : -1; while (1) { bool hasVal = tMergeTreeNext(&pLastBlockReader->mergeTree); if (!hasVal) { // the next value will be the accessed key in stt pScanInfo->lastKeyInStt += step; return false; } TSDBROW row = tMergeTreeGetRow(&pLastBlockReader->mergeTree); TSDBKEY k = TSDBROW_KEY(&row); pScanInfo->lastKeyInStt = k.ts; if (!hasBeenDropped(pScanInfo->delSkyline, &pScanInfo->lastBlockDelIndex, &k, pLastBlockReader->order, pVerRange)) { // the qualifed ts may equal to k.ts, only a greater version one. // here we need to fallback one step. return true; } } } static bool tryCopyDistinctRowFromSttBlock(TSDBROW* fRow, SLastBlockReader* pLastBlockReader, STableBlockScanInfo* pScanInfo, int64_t ts, STsdbReader* pReader) { bool hasVal = nextRowFromLastBlocks(pLastBlockReader, pScanInfo, &pReader->verRange); if (hasVal) { int64_t next1 = getCurrentKeyInLastBlock(pLastBlockReader); if (next1 != ts) { doAppendRowFromFileBlock(pReader->pResBlock, pReader, fRow->pBlockData, fRow->iRow); return true; } } else { doAppendRowFromFileBlock(pReader->pResBlock, pReader, fRow->pBlockData, fRow->iRow); return true; } return false; } static FORCE_INLINE STSchema* getLatestTableSchema(STsdbReader* pReader, uint64_t uid) { if (pReader->pSchema != NULL) { return pReader->pSchema; } pReader->pSchema = metaGetTbTSchema(pReader->pTsdb->pVnode->pMeta, uid, -1, 1); if (pReader->pSchema == NULL) { tsdbError("failed to get table schema, uid:%" PRIu64 ", it may have been dropped, ver:-1, %s", uid, pReader->idStr); } return pReader->pSchema; } static FORCE_INLINE STSchema* doGetSchemaForTSRow(int32_t sversion, STsdbReader* pReader, uint64_t uid) { // always set the newest schema version in pReader->pSchema if (pReader->pSchema == NULL) { pReader->pSchema = metaGetTbTSchema(pReader->pTsdb->pVnode->pMeta, uid, -1, 1); } if (pReader->pSchema && sversion == pReader->pSchema->version) { return pReader->pSchema; } if (pReader->pMemSchema == NULL) { int32_t code = metaGetTbTSchemaEx(pReader->pTsdb->pVnode->pMeta, pReader->suid, uid, sversion, &pReader->pMemSchema); if (code != TSDB_CODE_SUCCESS) { terrno = code; return NULL; } else { return pReader->pMemSchema; } } if (pReader->pMemSchema->version == sversion) { return pReader->pMemSchema; } taosMemoryFreeClear(pReader->pMemSchema); int32_t code = metaGetTbTSchemaEx(pReader->pTsdb->pVnode->pMeta, pReader->suid, uid, sversion, &pReader->pMemSchema); if (code != TSDB_CODE_SUCCESS || pReader->pMemSchema == NULL) { terrno = code; return NULL; } else { return pReader->pMemSchema; } } static int32_t doMergeBufAndFileRows(STsdbReader* pReader, STableBlockScanInfo* pBlockScanInfo, TSDBROW* pRow, SIterInfo* pIter, int64_t key, SLastBlockReader* pLastBlockReader) { SRowMerger merge = {0}; SRow* pTSRow = NULL; SBlockData* pBlockData = &pReader->status.fileBlockData; SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; int64_t tsLast = INT64_MIN; if (hasDataInLastBlock(pLastBlockReader)) { tsLast = getCurrentKeyInLastBlock(pLastBlockReader); } TSDBKEY k = TSDBROW_KEY(pRow); TSDBROW fRow = tsdbRowFromBlockData(pBlockData, pDumpInfo->rowIndex); int64_t minKey = 0; if (pReader->order == TSDB_ORDER_ASC) { minKey = INT64_MAX; // chosen the minimum value if (minKey > tsLast && hasDataInLastBlock(pLastBlockReader)) { minKey = tsLast; } if (minKey > k.ts) { minKey = k.ts; } if (minKey > key && hasDataInFileBlock(pBlockData, pDumpInfo)) { minKey = key; } } else { minKey = INT64_MIN; if (minKey < tsLast && hasDataInLastBlock(pLastBlockReader)) { minKey = tsLast; } if (minKey < k.ts) { minKey = k.ts; } if (minKey < key && hasDataInFileBlock(pBlockData, pDumpInfo)) { minKey = key; } } bool init = false; // ASC: file block ---> last block -----> imem -----> mem // DESC: mem -----> imem -----> last block -----> file block if (pReader->order == TSDB_ORDER_ASC) { if (minKey == key) { init = true; int32_t code = tsdbRowMergerInit(&merge, &fRow, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader, &merge); } if (minKey == tsLast) { TSDBROW fRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); if (init) { tsdbRowMerge(&merge, &fRow1); } else { init = true; int32_t code = tsdbRowMergerInit(&merge, &fRow1, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLast, &merge, &pReader->verRange, pReader->idStr); } if (minKey == k.ts) { STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); if (pSchema == NULL) { return terrno; } if (init) { tsdbRowMergerAdd(&merge, pRow, pSchema); } else { init = true; int32_t code = tsdbRowMergerInit(&merge, pRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } int32_t code = doMergeRowsInBuf(pIter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, &merge, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } } else { if (minKey == k.ts) { init = true; STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); int32_t code = tsdbRowMergerInit(&merge, pRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } code = doMergeRowsInBuf(pIter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, &merge, pReader); if (code != TSDB_CODE_SUCCESS || merge.pTSchema == NULL) { return code; } } if (minKey == tsLast) { TSDBROW fRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); if (init) { tsdbRowMerge(&merge, &fRow1); } else { init = true; int32_t code = tsdbRowMergerInit(&merge, &fRow1, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLast, &merge, &pReader->verRange, pReader->idStr); } if (minKey == key) { if (init) { tsdbRowMerge(&merge, &fRow); } else { init = true; int32_t code = tsdbRowMergerInit(&merge, &fRow, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader, &merge); } } int32_t code = tsdbRowMergerGetRow(&merge, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } doAppendRowFromTSRow(pReader->pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(&merge); return TSDB_CODE_SUCCESS; } static int32_t doMergeFileBlockAndLastBlock(SLastBlockReader* pLastBlockReader, STsdbReader* pReader, STableBlockScanInfo* pBlockScanInfo, SBlockData* pBlockData, bool mergeBlockData) { SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; int64_t tsLastBlock = getCurrentKeyInLastBlock(pLastBlockReader); SRow* pTSRow = NULL; SRowMerger merge = {0}; TSDBROW fRow = tMergeTreeGetRow(&pLastBlockReader->mergeTree); tsdbTrace("fRow ptr:%p, %d, uid:%" PRIu64 ", %s", fRow.pBlockData, fRow.iRow, pLastBlockReader->uid, pReader->idStr); // only last block exists if ((!mergeBlockData) || (tsLastBlock != pBlockData->aTSKEY[pDumpInfo->rowIndex])) { if (tryCopyDistinctRowFromSttBlock(&fRow, pLastBlockReader, pBlockScanInfo, tsLastBlock, pReader)) { pBlockScanInfo->lastKey = tsLastBlock; return TSDB_CODE_SUCCESS; } else { int32_t code = tsdbRowMergerInit(&merge, &fRow, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } TSDBROW fRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); tsdbRowMerge(&merge, &fRow1); doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLastBlock, &merge, &pReader->verRange, pReader->idStr); code = tsdbRowMergerGetRow(&merge, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } doAppendRowFromTSRow(pReader->pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(&merge); } } else { // not merge block data int32_t code = tsdbRowMergerInit(&merge, &fRow, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLastBlock, &merge, &pReader->verRange, pReader->idStr); // merge with block data if ts == key if (tsLastBlock == pBlockData->aTSKEY[pDumpInfo->rowIndex]) { doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader, &merge); } code = tsdbRowMergerGetRow(&merge, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } doAppendRowFromTSRow(pReader->pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(&merge); } return TSDB_CODE_SUCCESS; } static int32_t mergeFileBlockAndLastBlock(STsdbReader* pReader, SLastBlockReader* pLastBlockReader, int64_t key, STableBlockScanInfo* pBlockScanInfo, SBlockData* pBlockData) { SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; if (hasDataInFileBlock(pBlockData, pDumpInfo)) { // no last block available, only data block exists if (!hasDataInLastBlock(pLastBlockReader)) { return mergeRowsInFileBlocks(pBlockData, pBlockScanInfo, key, pReader); } // row in last file block TSDBROW fRow = tsdbRowFromBlockData(pBlockData, pDumpInfo->rowIndex); int64_t ts = getCurrentKeyInLastBlock(pLastBlockReader); ASSERT(ts >= key); if (ASCENDING_TRAVERSE(pReader->order)) { if (key < ts) { // imem, mem are all empty, file blocks (data blocks and last block) exist return mergeRowsInFileBlocks(pBlockData, pBlockScanInfo, key, pReader); } else if (key == ts) { SRow* pTSRow = NULL; SRowMerger merge = {0}; int32_t code = tsdbRowMergerInit(&merge, &fRow, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader, &merge); TSDBROW fRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); tsdbRowMerge(&merge, &fRow1); doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, ts, &merge, &pReader->verRange, pReader->idStr); code = tsdbRowMergerGetRow(&merge, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } doAppendRowFromTSRow(pReader->pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(&merge); return code; } else { return TSDB_CODE_SUCCESS; } } else { // desc order return doMergeFileBlockAndLastBlock(pLastBlockReader, pReader, pBlockScanInfo, pBlockData, true); } } else { // only last block exists return doMergeFileBlockAndLastBlock(pLastBlockReader, pReader, pBlockScanInfo, NULL, false); } } static int32_t doMergeMultiLevelRows(STsdbReader* pReader, STableBlockScanInfo* pBlockScanInfo, SBlockData* pBlockData, SLastBlockReader* pLastBlockReader) { SRowMerger merge = {0}; SRow* pTSRow = NULL; int32_t code = TSDB_CODE_SUCCESS; SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; SArray* pDelList = pBlockScanInfo->delSkyline; TSDBROW* pRow = getValidMemRow(&pBlockScanInfo->iter, pDelList, pReader); TSDBROW* piRow = getValidMemRow(&pBlockScanInfo->iiter, pDelList, pReader); int64_t tsLast = INT64_MIN; if (hasDataInLastBlock(pLastBlockReader)) { tsLast = getCurrentKeyInLastBlock(pLastBlockReader); } int64_t key = hasDataInFileBlock(pBlockData, pDumpInfo) ? pBlockData->aTSKEY[pDumpInfo->rowIndex] : INT64_MIN; TSDBKEY k = TSDBROW_KEY(pRow); TSDBKEY ik = TSDBROW_KEY(piRow); int64_t minKey = 0; if (ASCENDING_TRAVERSE(pReader->order)) { minKey = INT64_MAX; // let's find the minimum if (minKey > k.ts) { minKey = k.ts; } if (minKey > ik.ts) { minKey = ik.ts; } if (minKey > key && hasDataInFileBlock(pBlockData, pDumpInfo)) { minKey = key; } if (minKey > tsLast && hasDataInLastBlock(pLastBlockReader)) { minKey = tsLast; } } else { minKey = INT64_MIN; // let find the maximum ts value if (minKey < k.ts) { minKey = k.ts; } if (minKey < ik.ts) { minKey = ik.ts; } if (minKey < key && hasDataInFileBlock(pBlockData, pDumpInfo)) { minKey = key; } if (minKey < tsLast && hasDataInLastBlock(pLastBlockReader)) { minKey = tsLast; } } bool init = false; // ASC: file block -----> last block -----> imem -----> mem // DESC: mem -----> imem -----> last block -----> file block if (ASCENDING_TRAVERSE(pReader->order)) { if (minKey == key) { init = true; TSDBROW fRow = tsdbRowFromBlockData(pBlockData, pDumpInfo->rowIndex); code = tsdbRowMergerInit(&merge, &fRow, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader, &merge); } if (minKey == tsLast) { TSDBROW fRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); if (init) { tsdbRowMerge(&merge, &fRow1); } else { init = true; code = tsdbRowMergerInit(&merge, &fRow1, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLast, &merge, &pReader->verRange, pReader->idStr); } if (minKey == ik.ts) { if (init) { tsdbRowMerge(&merge, piRow); } else { init = true; STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(piRow), pReader, pBlockScanInfo->uid); if (pSchema == NULL) { return code; } code = tsdbRowMergerInit(&merge, piRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } code = doMergeRowsInBuf(&pBlockScanInfo->iiter, pBlockScanInfo->uid, ik.ts, pBlockScanInfo->delSkyline, &merge, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } if (minKey == k.ts) { if (init) { if (merge.pTSchema == NULL) { return code; } tsdbRowMerge(&merge, pRow); } else { STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); code = tsdbRowMergerInit(&merge, pRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } code = doMergeRowsInBuf(&pBlockScanInfo->iter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, &merge, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } } else { if (minKey == k.ts) { init = true; STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); code = tsdbRowMergerInit(&merge, pRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } code = doMergeRowsInBuf(&pBlockScanInfo->iter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, &merge, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } if (minKey == ik.ts) { if (init) { tsdbRowMerge(&merge, piRow); } else { init = true; STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(piRow), pReader, pBlockScanInfo->uid); code = tsdbRowMergerInit(&merge, piRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } code = doMergeRowsInBuf(&pBlockScanInfo->iiter, pBlockScanInfo->uid, ik.ts, pBlockScanInfo->delSkyline, &merge, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } if (minKey == tsLast) { TSDBROW fRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); if (init) { tsdbRowMerge(&merge, &fRow1); } else { init = true; code = tsdbRowMergerInit(&merge, &fRow1, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLast, &merge, &pReader->verRange, pReader->idStr); } if (minKey == key) { TSDBROW fRow = tsdbRowFromBlockData(pBlockData, pDumpInfo->rowIndex); if (!init) { code = tsdbRowMergerInit(&merge, &fRow, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } else { if (merge.pTSchema == NULL) { return code; } tsdbRowMerge(&merge, &fRow); } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader, &merge); } } if (merge.pTSchema == NULL) { return code; } code = tsdbRowMergerGetRow(&merge, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } doAppendRowFromTSRow(pReader->pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(&merge); return code; } static int32_t initMemDataIterator(STableBlockScanInfo* pBlockScanInfo, STsdbReader* pReader) { if (pBlockScanInfo->iterInit) { return TSDB_CODE_SUCCESS; } int32_t code = TSDB_CODE_SUCCESS; TSDBKEY startKey = {0}; if (ASCENDING_TRAVERSE(pReader->order)) { // startKey = (TSDBKEY){.ts = pReader->window.skey, .version = pReader->verRange.minVer}; startKey = (TSDBKEY){.ts = pBlockScanInfo->lastKey + 1, .version = pReader->verRange.minVer}; } else { // startKey = (TSDBKEY){.ts = pReader->window.ekey, .version = pReader->verRange.maxVer}; startKey = (TSDBKEY){.ts = pBlockScanInfo->lastKey - 1, .version = pReader->verRange.maxVer}; } int32_t backward = (!ASCENDING_TRAVERSE(pReader->order)); int64_t st = 0; STbData* d = NULL; if (pReader->pReadSnap->pMem != NULL) { d = tsdbGetTbDataFromMemTable(pReader->pReadSnap->pMem, pReader->suid, pBlockScanInfo->uid); if (d != NULL) { code = tsdbTbDataIterCreate(d, &startKey, backward, &pBlockScanInfo->iter.iter); if (code == TSDB_CODE_SUCCESS) { pBlockScanInfo->iter.hasVal = (tsdbTbDataIterGet(pBlockScanInfo->iter.iter) != NULL); tsdbDebug("%p uid:%" PRIu64 ", check data in mem from skey:%" PRId64 ", order:%d, ts range in buf:%" PRId64 "-%" PRId64 " %s", pReader, pBlockScanInfo->uid, startKey.ts, pReader->order, d->minKey, d->maxKey, pReader->idStr); } else { tsdbError("%p uid:%" PRIu64 ", failed to create iterator for imem, code:%s, %s", pReader, pBlockScanInfo->uid, tstrerror(code), pReader->idStr); return code; } } } else { tsdbDebug("%p uid:%" PRIu64 ", no data in mem, %s", pReader, pBlockScanInfo->uid, pReader->idStr); } STbData* di = NULL; if (pReader->pReadSnap->pIMem != NULL) { di = tsdbGetTbDataFromMemTable(pReader->pReadSnap->pIMem, pReader->suid, pBlockScanInfo->uid); if (di != NULL) { code = tsdbTbDataIterCreate(di, &startKey, backward, &pBlockScanInfo->iiter.iter); if (code == TSDB_CODE_SUCCESS) { pBlockScanInfo->iiter.hasVal = (tsdbTbDataIterGet(pBlockScanInfo->iiter.iter) != NULL); tsdbDebug("%p uid:%" PRIu64 ", check data in imem from skey:%" PRId64 ", order:%d, ts range in buf:%" PRId64 "-%" PRId64 " %s", pReader, pBlockScanInfo->uid, startKey.ts, pReader->order, di->minKey, di->maxKey, pReader->idStr); } else { tsdbError("%p uid:%" PRIu64 ", failed to create iterator for mem, code:%s, %s", pReader, pBlockScanInfo->uid, tstrerror(code), pReader->idStr); return code; } } } else { tsdbDebug("%p uid:%" PRIu64 ", no data in imem, %s", pReader, pBlockScanInfo->uid, pReader->idStr); } st = taosGetTimestampUs(); initDelSkylineIterator(pBlockScanInfo, pReader, d, di); pReader->cost.initDelSkylineIterTime += (taosGetTimestampUs() - st) / 1000.0; pBlockScanInfo->iterInit = true; return TSDB_CODE_SUCCESS; } static bool isValidFileBlockRow(SBlockData* pBlockData, SFileBlockDumpInfo* pDumpInfo, STableBlockScanInfo* pBlockScanInfo, STsdbReader* pReader) { // it is an multi-table data block if (pBlockData->aUid != NULL) { uint64_t uid = pBlockData->aUid[pDumpInfo->rowIndex]; if (uid != pBlockScanInfo->uid) { // move to next row return false; } } // check for version and time range int64_t ver = pBlockData->aVersion[pDumpInfo->rowIndex]; if (ver > pReader->verRange.maxVer || ver < pReader->verRange.minVer) { return false; } int64_t ts = pBlockData->aTSKEY[pDumpInfo->rowIndex]; if (ts > pReader->window.ekey || ts < pReader->window.skey) { return false; } TSDBKEY k = {.ts = ts, .version = ver}; if (hasBeenDropped(pBlockScanInfo->delSkyline, &pBlockScanInfo->fileDelIndex, &k, pReader->order, &pReader->verRange)) { return false; } return true; } static bool initLastBlockReader(SLastBlockReader* pLBlockReader, STableBlockScanInfo* pScanInfo, STsdbReader* pReader) { // the last block reader has been initialized for this table. if (pLBlockReader->uid == pScanInfo->uid) { return hasDataInLastBlock(pLBlockReader); } if (pLBlockReader->uid != 0) { tMergeTreeClose(&pLBlockReader->mergeTree); } initMemDataIterator(pScanInfo, pReader); pLBlockReader->uid = pScanInfo->uid; STimeWindow w = pLBlockReader->window; if (ASCENDING_TRAVERSE(pLBlockReader->order)) { w.skey = pScanInfo->lastKeyInStt; } else { w.ekey = pScanInfo->lastKeyInStt; } tsdbDebug("init last block reader, window:%" PRId64 "-%" PRId64 ", uid:%" PRIu64 ", %s", w.skey, w.ekey, pScanInfo->uid, pReader->idStr); int32_t code = tMergeTreeOpen(&pLBlockReader->mergeTree, (pLBlockReader->order == TSDB_ORDER_DESC), pReader->pFileReader, pReader->suid, pScanInfo->uid, &w, &pLBlockReader->verRange, pLBlockReader->pInfo, false, pReader->idStr, false); if (code != TSDB_CODE_SUCCESS) { return false; } return nextRowFromLastBlocks(pLBlockReader, pScanInfo, &pReader->verRange); } static int64_t getCurrentKeyInLastBlock(SLastBlockReader* pLastBlockReader) { TSDBROW row = tMergeTreeGetRow(&pLastBlockReader->mergeTree); return TSDBROW_TS(&row); } static bool hasDataInLastBlock(SLastBlockReader* pLastBlockReader) { return pLastBlockReader->mergeTree.pIter != NULL; } bool hasDataInFileBlock(const SBlockData* pBlockData, const SFileBlockDumpInfo* pDumpInfo) { if ((pBlockData->nRow > 0) && (pBlockData->nRow != pDumpInfo->totalRows)) { return false; // this is an invalid result. } return pBlockData->nRow > 0 && (!pDumpInfo->allDumped); } int32_t mergeRowsInFileBlocks(SBlockData* pBlockData, STableBlockScanInfo* pBlockScanInfo, int64_t key, STsdbReader* pReader) { SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; if (tryCopyDistinctRowFromFileBlock(pReader, pBlockData, key, pDumpInfo)) { pBlockScanInfo->lastKey = key; return TSDB_CODE_SUCCESS; } else { TSDBROW fRow = tsdbRowFromBlockData(pBlockData, pDumpInfo->rowIndex); SRow* pTSRow = NULL; SRowMerger merge = {0}; int32_t code = tsdbRowMergerInit(&merge, &fRow, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader, &merge); code = tsdbRowMergerGetRow(&merge, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } doAppendRowFromTSRow(pReader->pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(&merge); return TSDB_CODE_SUCCESS; } } static int32_t buildComposedDataBlockImpl(STsdbReader* pReader, STableBlockScanInfo* pBlockScanInfo, SBlockData* pBlockData, SLastBlockReader* pLastBlockReader) { SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; TSDBROW *pRow = NULL, *piRow = NULL; int64_t key = (pBlockData->nRow > 0 && (!pDumpInfo->allDumped)) ? pBlockData->aTSKEY[pDumpInfo->rowIndex] : INT64_MIN; if (pBlockScanInfo->iter.hasVal) { pRow = getValidMemRow(&pBlockScanInfo->iter, pBlockScanInfo->delSkyline, pReader); } if (pBlockScanInfo->iiter.hasVal) { piRow = getValidMemRow(&pBlockScanInfo->iiter, pBlockScanInfo->delSkyline, pReader); } // two levels of mem-table does contain the valid rows if (pRow != NULL && piRow != NULL) { return doMergeMultiLevelRows(pReader, pBlockScanInfo, pBlockData, pLastBlockReader); } // imem + file + last block if (pBlockScanInfo->iiter.hasVal) { return doMergeBufAndFileRows(pReader, pBlockScanInfo, piRow, &pBlockScanInfo->iiter, key, pLastBlockReader); } // mem + file + last block if (pBlockScanInfo->iter.hasVal) { return doMergeBufAndFileRows(pReader, pBlockScanInfo, pRow, &pBlockScanInfo->iter, key, pLastBlockReader); } // files data blocks + last block return mergeFileBlockAndLastBlock(pReader, pLastBlockReader, key, pBlockScanInfo, pBlockData); } static int32_t loadNeighborIfOverlap(SFileDataBlockInfo* pBlockInfo, STableBlockScanInfo* pBlockScanInfo, STsdbReader* pReader, bool* loadNeighbor) { int32_t code = TSDB_CODE_SUCCESS; int32_t step = ASCENDING_TRAVERSE(pReader->order) ? 1 : -1; int32_t nextIndex = -1; SBlockIndex nxtBIndex = {0}; *loadNeighbor = false; SDataBlk* pBlock = getCurrentBlock(&pReader->status.blockIter); bool hasNeighbor = getNeighborBlockOfSameTable(pBlockInfo, pBlockScanInfo, &nextIndex, pReader->order, &nxtBIndex); if (!hasNeighbor) { // do nothing return code; } if (overlapWithNeighborBlock(pBlock, &nxtBIndex, pReader->order)) { // load next block SReaderStatus* pStatus = &pReader->status; SDataBlockIter* pBlockIter = &pStatus->blockIter; // 1. find the next neighbor block in the scan block list SFileDataBlockInfo fb = {.uid = pBlockInfo->uid, .tbBlockIdx = nextIndex}; int32_t neighborIndex = findFileBlockInfoIndex(pBlockIter, &fb); // 2. remove it from the scan block list setFileBlockActiveInBlockIter(pBlockIter, neighborIndex, step); // 3. load the neighbor block, and set it to be the currently accessed file data block code = doLoadFileBlockData(pReader, pBlockIter, &pStatus->fileBlockData, pBlockInfo->uid); if (code != TSDB_CODE_SUCCESS) { return code; } // 4. check the data values initBlockDumpInfo(pReader, pBlockIter); *loadNeighbor = true; } return code; } static void updateComposedBlockInfo(STsdbReader* pReader, double el, STableBlockScanInfo* pBlockScanInfo) { SSDataBlock* pResBlock = pReader->pResBlock; pResBlock->info.id.uid = (pBlockScanInfo != NULL) ? pBlockScanInfo->uid : 0; pResBlock->info.dataLoad = 1; blockDataUpdateTsWindow(pResBlock, pReader->suppInfo.slotId[0]); setComposedBlockFlag(pReader, true); pReader->cost.composedBlocks += 1; pReader->cost.buildComposedBlockTime += el; } static int32_t buildComposedDataBlock(STsdbReader* pReader) { int32_t code = TSDB_CODE_SUCCESS; SSDataBlock* pResBlock = pReader->pResBlock; SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(&pReader->status.blockIter); SLastBlockReader* pLastBlockReader = pReader->status.fileIter.pLastBlockReader; bool asc = ASCENDING_TRAVERSE(pReader->order); int64_t st = taosGetTimestampUs(); int32_t step = asc ? 1 : -1; double el = 0; STableBlockScanInfo* pBlockScanInfo = NULL; if (pBlockInfo != NULL) { pBlockScanInfo = getTableBlockScanInfo(pReader->status.pTableMap, pBlockInfo->uid, pReader->idStr); if (pBlockScanInfo == NULL) { goto _end; } SDataBlk* pBlock = getCurrentBlock(&pReader->status.blockIter); TSDBKEY keyInBuf = getCurrentKeyInBuf(pBlockScanInfo, pReader); // it is a clean block, load it directly if (isCleanFileDataBlock(pReader, pBlockInfo, pBlock, pBlockScanInfo, keyInBuf, pLastBlockReader) && pBlock->nRow <= pReader->capacity) { if (asc || ((!asc) && (!hasDataInLastBlock(pLastBlockReader)))) { copyBlockDataToSDataBlock(pReader); // record the last key value pBlockScanInfo->lastKey = asc ? pBlock->maxKey.ts : pBlock->minKey.ts; goto _end; } } } else { // file blocks not exist pBlockScanInfo = *pReader->status.pTableIter; } SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; SBlockData* pBlockData = &pReader->status.fileBlockData; while (1) { bool hasBlockData = false; { while (pBlockData->nRow > 0 && pBlockData->uid == pBlockScanInfo->uid) { // find the first qualified row in data block if (isValidFileBlockRow(pBlockData, pDumpInfo, pBlockScanInfo, pReader)) { hasBlockData = true; break; } pDumpInfo->rowIndex += step; SDataBlk* pBlock = getCurrentBlock(&pReader->status.blockIter); if (pDumpInfo->rowIndex >= pBlock->nRow || pDumpInfo->rowIndex < 0) { pBlockInfo = getCurrentBlockInfo(&pReader->status.blockIter); // NOTE: get the new block info // continue check for the next file block if the last ts in the current block // is overlapped with the next neighbor block bool loadNeighbor = false; code = loadNeighborIfOverlap(pBlockInfo, pBlockScanInfo, pReader, &loadNeighbor); if ((!loadNeighbor) || (code != 0)) { setBlockAllDumped(pDumpInfo, pBlock->maxKey.ts, pReader->order); break; } } } } // no data in last block and block, no need to proceed. if (hasBlockData == false) { break; } buildComposedDataBlockImpl(pReader, pBlockScanInfo, pBlockData, pLastBlockReader); // currently loaded file data block is consumed if ((pBlockData->nRow > 0) && (pDumpInfo->rowIndex >= pBlockData->nRow || pDumpInfo->rowIndex < 0)) { SDataBlk* pBlock = getCurrentBlock(&pReader->status.blockIter); setBlockAllDumped(pDumpInfo, pBlock->maxKey.ts, pReader->order); break; } if (pResBlock->info.rows >= pReader->capacity) { break; } } _end: el = (taosGetTimestampUs() - st) / 1000.0; updateComposedBlockInfo(pReader, el, pBlockScanInfo); if (pResBlock->info.rows > 0) { tsdbDebug("%p uid:%" PRIu64 ", composed data block created, brange:%" PRIu64 "-%" PRIu64 " rows:%d, elapsed time:%.2f ms %s", pReader, pResBlock->info.id.uid, pResBlock->info.window.skey, pResBlock->info.window.ekey, pResBlock->info.rows, el, pReader->idStr); } return code; } void setComposedBlockFlag(STsdbReader* pReader, bool composed) { pReader->status.composedDataBlock = composed; } int32_t getInitialDelIndex(const SArray* pDelSkyline, int32_t order) { if (pDelSkyline == NULL) { return 0; } return ASCENDING_TRAVERSE(order) ? 0 : taosArrayGetSize(pDelSkyline) - 1; } int32_t initDelSkylineIterator(STableBlockScanInfo* pBlockScanInfo, STsdbReader* pReader, STbData* pMemTbData, STbData* piMemTbData) { if (pBlockScanInfo->delSkyline != NULL) { return TSDB_CODE_SUCCESS; } int32_t code = 0; SArray* pDelData = taosArrayInit(4, sizeof(SDelData)); SDelFile* pDelFile = pReader->pReadSnap->fs.pDelFile; if (pDelFile && taosArrayGetSize(pReader->pDelIdx) > 0) { SDelIdx idx = {.suid = pReader->suid, .uid = pBlockScanInfo->uid}; SDelIdx* pIdx = taosArraySearch(pReader->pDelIdx, &idx, tCmprDelIdx, TD_EQ); if (pIdx != NULL) { code = tsdbReadDelData(pReader->pDelFReader, pIdx, pDelData); } if (code != TSDB_CODE_SUCCESS) { goto _err; } } SDelData* p = NULL; if (pMemTbData != NULL) { p = pMemTbData->pHead; while (p) { taosArrayPush(pDelData, p); p = p->pNext; } } if (piMemTbData != NULL) { p = piMemTbData->pHead; while (p) { taosArrayPush(pDelData, p); p = p->pNext; } } if (taosArrayGetSize(pDelData) > 0) { pBlockScanInfo->delSkyline = taosArrayInit(4, sizeof(TSDBKEY)); code = tsdbBuildDeleteSkyline(pDelData, 0, (int32_t)(taosArrayGetSize(pDelData) - 1), pBlockScanInfo->delSkyline); } taosArrayDestroy(pDelData); int32_t index = getInitialDelIndex(pBlockScanInfo->delSkyline, pReader->order); pBlockScanInfo->iter.index = index; pBlockScanInfo->iiter.index = index; pBlockScanInfo->fileDelIndex = index; pBlockScanInfo->lastBlockDelIndex = index; return code; _err: taosArrayDestroy(pDelData); return code; } TSDBKEY getCurrentKeyInBuf(STableBlockScanInfo* pScanInfo, STsdbReader* pReader) { bool asc = ASCENDING_TRAVERSE(pReader->order); // TSKEY initialVal = asc? TSKEY_MIN:TSKEY_MAX; TSDBKEY key = {.ts = TSKEY_INITIAL_VAL}, ikey = {.ts = TSKEY_INITIAL_VAL}; bool hasKey = false, hasIKey = false; TSDBROW* pRow = getValidMemRow(&pScanInfo->iter, pScanInfo->delSkyline, pReader); if (pRow != NULL) { hasKey = true; key = TSDBROW_KEY(pRow); } TSDBROW* pIRow = getValidMemRow(&pScanInfo->iiter, pScanInfo->delSkyline, pReader); if (pIRow != NULL) { hasIKey = true; ikey = TSDBROW_KEY(pIRow); } if (hasKey) { if (hasIKey) { // has data in mem & imem if (asc) { return key.ts <= ikey.ts ? key : ikey; } else { return key.ts <= ikey.ts ? ikey : key; } } else { // no data in imem return key; } } else { // no data in mem & imem, return the initial value // only imem has data, return ikey return ikey; } } static int32_t moveToNextFile(STsdbReader* pReader, SBlockNumber* pBlockNum) { SReaderStatus* pStatus = &pReader->status; pBlockNum->numOfBlocks = 0; pBlockNum->numOfLastFiles = 0; size_t numOfTables = taosHashGetSize(pReader->status.pTableMap); SArray* pIndexList = taosArrayInit(numOfTables, sizeof(SBlockIdx)); while (1) { bool hasNext = false; int32_t code = filesetIteratorNext(&pStatus->fileIter, pReader, &hasNext); if (code) { taosArrayDestroy(pIndexList); return code; } if (!hasNext) { // no data files on disk break; } taosArrayClear(pIndexList); code = doLoadBlockIndex(pReader, pReader->pFileReader, pIndexList); if (code != TSDB_CODE_SUCCESS) { taosArrayDestroy(pIndexList); return code; } if (taosArrayGetSize(pIndexList) > 0 || pReader->pFileReader->pSet->nSttF > 0) { code = doLoadFileBlock(pReader, pIndexList, pBlockNum); if (code != TSDB_CODE_SUCCESS) { taosArrayDestroy(pIndexList); return code; } if (pBlockNum->numOfBlocks + pBlockNum->numOfLastFiles > 0) { break; } } // no blocks in current file, try next files } taosArrayDestroy(pIndexList); if (pReader->pReadSnap != NULL) { SDelFile* pDelFile = pReader->pReadSnap->fs.pDelFile; if (pReader->pDelFReader == NULL && pDelFile != NULL) { int32_t code = tsdbDelFReaderOpen(&pReader->pDelFReader, pDelFile, pReader->pTsdb); if (code != TSDB_CODE_SUCCESS) { return code; } pReader->pDelIdx = taosArrayInit(4, sizeof(SDelIdx)); if (pReader->pDelIdx == NULL) { code = TSDB_CODE_OUT_OF_MEMORY; return code; } code = tsdbReadDelIdx(pReader->pDelFReader, pReader->pDelIdx); if (code != TSDB_CODE_SUCCESS) { taosArrayDestroy(pReader->pDelIdx); return code; } } } return TSDB_CODE_SUCCESS; } static void resetTableListIndex(SReaderStatus* pStatus) { STableUidList* pList = &pStatus->uidList; pList->currentIndex = 0; uint64_t uid = pList->tableUidList[0]; pStatus->pTableIter = taosHashGet(pStatus->pTableMap, &uid, sizeof(uid)); } static bool moveToNextTable(STableUidList* pOrderedCheckInfo, SReaderStatus* pStatus) { pOrderedCheckInfo->currentIndex += 1; if (pOrderedCheckInfo->currentIndex >= taosHashGetSize(pStatus->pTableMap)) { pStatus->pTableIter = NULL; return false; } uint64_t uid = pOrderedCheckInfo->tableUidList[pOrderedCheckInfo->currentIndex]; pStatus->pTableIter = taosHashGet(pStatus->pTableMap, &uid, sizeof(uid)); return (pStatus->pTableIter != NULL); } static int32_t doLoadLastBlockSequentially(STsdbReader* pReader) { SReaderStatus* pStatus = &pReader->status; SLastBlockReader* pLastBlockReader = pStatus->fileIter.pLastBlockReader; STableUidList* pUidList = &pStatus->uidList; if (taosHashGetSize(pStatus->pTableMap) == 0) { return TSDB_CODE_SUCCESS; } SSDataBlock* pResBlock = pReader->pResBlock; while (1) { // load the last data block of current table STableBlockScanInfo* pScanInfo = *(STableBlockScanInfo**)pStatus->pTableIter; bool hasVal = initLastBlockReader(pLastBlockReader, pScanInfo, pReader); if (!hasVal) { bool hasNexTable = moveToNextTable(pUidList, pStatus); if (!hasNexTable) { return TSDB_CODE_SUCCESS; } continue; } int64_t st = taosGetTimestampUs(); while (1) { bool hasBlockLData = hasDataInLastBlock(pLastBlockReader); // no data in last block and block, no need to proceed. if (hasBlockLData == false) { break; } buildComposedDataBlockImpl(pReader, pScanInfo, &pReader->status.fileBlockData, pLastBlockReader); if (pResBlock->info.rows >= pReader->capacity) { break; } } double el = (taosGetTimestampUs() - st) / 1000.0; updateComposedBlockInfo(pReader, el, pScanInfo); if (pResBlock->info.rows > 0) { tsdbDebug("%p uid:%" PRIu64 ", composed data block created, brange:%" PRIu64 "-%" PRIu64 " rows:%d, elapsed time:%.2f ms %s", pReader, pResBlock->info.id.uid, pResBlock->info.window.skey, pResBlock->info.window.ekey, pResBlock->info.rows, el, pReader->idStr); return TSDB_CODE_SUCCESS; } // current table is exhausted, let's try next table bool hasNexTable = moveToNextTable(pUidList, pStatus); if (!hasNexTable) { return TSDB_CODE_SUCCESS; } } } static int32_t doBuildDataBlock(STsdbReader* pReader) { int32_t code = TSDB_CODE_SUCCESS; SDataBlk* pBlock = NULL; SReaderStatus* pStatus = &pReader->status; SDataBlockIter* pBlockIter = &pStatus->blockIter; STableBlockScanInfo* pScanInfo = NULL; SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter); SLastBlockReader* pLastBlockReader = pReader->status.fileIter.pLastBlockReader; pScanInfo = getTableBlockScanInfo(pReader->status.pTableMap, pBlockInfo->uid, pReader->idStr); if (pScanInfo == NULL) { return terrno; } pBlock = getCurrentBlock(pBlockIter); initLastBlockReader(pLastBlockReader, pScanInfo, pReader); TSDBKEY keyInBuf = getCurrentKeyInBuf(pScanInfo, pReader); if (fileBlockShouldLoad(pReader, pBlockInfo, pBlock, pScanInfo, keyInBuf, pLastBlockReader)) { code = doLoadFileBlockData(pReader, pBlockIter, &pStatus->fileBlockData, pScanInfo->uid); if (code != TSDB_CODE_SUCCESS) { return code; } // build composed data block code = buildComposedDataBlock(pReader); } else if (bufferDataInFileBlockGap(pReader->order, keyInBuf, pBlock)) { // data in memory that are earlier than current file block // rows in buffer should be less than the file block in asc, greater than file block in desc int64_t endKey = (ASCENDING_TRAVERSE(pReader->order)) ? pBlock->minKey.ts : pBlock->maxKey.ts; code = buildDataBlockFromBuf(pReader, pScanInfo, endKey); } else { if (hasDataInLastBlock(pLastBlockReader) && !ASCENDING_TRAVERSE(pReader->order)) { // only return the rows in last block int64_t tsLast = getCurrentKeyInLastBlock(pLastBlockReader); ASSERT(tsLast >= pBlock->maxKey.ts); SBlockData* pBData = &pReader->status.fileBlockData; tBlockDataReset(pBData); SSDataBlock* pResBlock = pReader->pResBlock; tsdbDebug("load data in last block firstly, due to desc scan data, %s", pReader->idStr); int64_t st = taosGetTimestampUs(); while (1) { bool hasBlockLData = hasDataInLastBlock(pLastBlockReader); // no data in last block and block, no need to proceed. if (hasBlockLData == false) { break; } buildComposedDataBlockImpl(pReader, pScanInfo, &pReader->status.fileBlockData, pLastBlockReader); if (pResBlock->info.rows >= pReader->capacity) { break; } } double el = (taosGetTimestampUs() - st) / 1000.0; updateComposedBlockInfo(pReader, el, pScanInfo); if (pResBlock->info.rows > 0) { tsdbDebug("%p uid:%" PRIu64 ", composed data block created, brange:%" PRIu64 "-%" PRIu64 " rows:%d, elapsed time:%.2f ms %s", pReader, pResBlock->info.id.uid, pResBlock->info.window.skey, pResBlock->info.window.ekey, pResBlock->info.rows, el, pReader->idStr); } } else { // whole block is required, return it directly SDataBlockInfo* pInfo = &pReader->pResBlock->info; pInfo->rows = pBlock->nRow; pInfo->id.uid = pScanInfo->uid; pInfo->dataLoad = 0; pInfo->window = (STimeWindow){.skey = pBlock->minKey.ts, .ekey = pBlock->maxKey.ts}; setComposedBlockFlag(pReader, false); setBlockAllDumped(&pStatus->fBlockDumpInfo, pBlock->maxKey.ts, pReader->order); // update the last key for the corresponding table pScanInfo->lastKey = ASCENDING_TRAVERSE(pReader->order) ? pInfo->window.ekey : pInfo->window.skey; tsdbDebug("%p uid:%" PRIu64 " clean file block retrieved from file, global index:%d, " "table index:%d, rows:%d, brange:%" PRId64 "-%" PRId64 ", %s", pReader, pScanInfo->uid, pBlockIter->index, pBlockInfo->tbBlockIdx, pBlock->nRow, pBlock->minKey.ts, pBlock->maxKey.ts, pReader->idStr); } } return code; } static int32_t buildBlockFromBufferSequentially(STsdbReader* pReader) { SReaderStatus* pStatus = &pReader->status; STableUidList* pUidList = &pStatus->uidList; while (1) { // if (pStatus->pTableIter == NULL) { // pStatus->pTableIter = taosHashIterate(pStatus->pTableMap, NULL); // if (pStatus->pTableIter == NULL) { // return TSDB_CODE_SUCCESS; // } // } STableBlockScanInfo** pBlockScanInfo = pStatus->pTableIter; initMemDataIterator(*pBlockScanInfo, pReader); int64_t endKey = (ASCENDING_TRAVERSE(pReader->order)) ? INT64_MAX : INT64_MIN; int32_t code = buildDataBlockFromBuf(pReader, *pBlockScanInfo, endKey); if (code != TSDB_CODE_SUCCESS) { return code; } if (pReader->pResBlock->info.rows > 0) { return TSDB_CODE_SUCCESS; } // current table is exhausted, let's try next table bool hasNexTable = moveToNextTable(pUidList, pStatus); if (!hasNexTable) { return TSDB_CODE_SUCCESS; } } } // set the correct start position in case of the first/last file block, according to the query time window static void initBlockDumpInfo(STsdbReader* pReader, SDataBlockIter* pBlockIter) { int64_t lastKey = ASCENDING_TRAVERSE(pReader->order) ? INT64_MIN : INT64_MAX; SDataBlk* pBlock = getCurrentBlock(pBlockIter); SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter); if (pBlockInfo) { STableBlockScanInfo* pScanInfo = taosHashGet(pBlockIter->pTableMap, &pBlockInfo->uid, sizeof(pBlockInfo->uid)); if (pScanInfo) { lastKey = pScanInfo->lastKey; } } SReaderStatus* pStatus = &pReader->status; SFileBlockDumpInfo* pDumpInfo = &pStatus->fBlockDumpInfo; pDumpInfo->totalRows = pBlock->nRow; pDumpInfo->allDumped = false; pDumpInfo->rowIndex = ASCENDING_TRAVERSE(pReader->order) ? 0 : pBlock->nRow - 1; pDumpInfo->lastKey = lastKey; } static int32_t initForFirstBlockInFile(STsdbReader* pReader, SDataBlockIter* pBlockIter) { SBlockNumber num = {0}; int32_t code = moveToNextFile(pReader, &num); if (code != TSDB_CODE_SUCCESS) { return code; } // all data files are consumed, try data in buffer if (num.numOfBlocks + num.numOfLastFiles == 0) { pReader->status.loadFromFile = false; return code; } // initialize the block iterator for a new fileset if (num.numOfBlocks > 0) { code = initBlockIterator(pReader, pBlockIter, num.numOfBlocks); } else { // no block data, only last block exists tBlockDataReset(&pReader->status.fileBlockData); resetDataBlockIterator(pBlockIter, pReader->order); resetTableListIndex(&pReader->status); } // set the correct start position according to the query time window initBlockDumpInfo(pReader, pBlockIter); return code; } static bool fileBlockPartiallyRead(SFileBlockDumpInfo* pDumpInfo, bool asc) { return (!pDumpInfo->allDumped) && ((pDumpInfo->rowIndex > 0 && asc) || (pDumpInfo->rowIndex < (pDumpInfo->totalRows - 1) && (!asc))); } static int32_t buildBlockFromFiles(STsdbReader* pReader) { int32_t code = TSDB_CODE_SUCCESS; bool asc = ASCENDING_TRAVERSE(pReader->order); SDataBlockIter* pBlockIter = &pReader->status.blockIter; if (pBlockIter->numOfBlocks == 0) { _begin: code = doLoadLastBlockSequentially(pReader); if (code != TSDB_CODE_SUCCESS) { return code; } if (pReader->pResBlock->info.rows > 0) { return TSDB_CODE_SUCCESS; } // all data blocks are checked in this last block file, now let's try the next file if (pReader->status.pTableIter == NULL) { code = initForFirstBlockInFile(pReader, pBlockIter); // error happens or all the data files are completely checked if ((code != TSDB_CODE_SUCCESS) || (pReader->status.loadFromFile == false)) { return code; } // this file does not have data files, let's start check the last block file if exists if (pBlockIter->numOfBlocks == 0) { resetTableListIndex(&pReader->status); goto _begin; } } code = doBuildDataBlock(pReader); if (code != TSDB_CODE_SUCCESS) { return code; } if (pReader->pResBlock->info.rows > 0) { return TSDB_CODE_SUCCESS; } } while (1) { SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; if (fileBlockPartiallyRead(pDumpInfo, asc)) { // file data block is partially loaded code = buildComposedDataBlock(pReader); } else { // current block are exhausted, try the next file block if (pDumpInfo->allDumped) { // try next data block in current file bool hasNext = blockIteratorNext(&pReader->status.blockIter, pReader->idStr); if (hasNext) { // check for the next block in the block accessed order list initBlockDumpInfo(pReader, pBlockIter); } else { if (pReader->status.pCurrentFileset->nSttF > 0) { // data blocks in current file are exhausted, let's try the next file now SBlockData* pBlockData = &pReader->status.fileBlockData; if (pBlockData->uid != 0) { tBlockDataClear(pBlockData); } tBlockDataReset(pBlockData); resetDataBlockIterator(pBlockIter, pReader->order); resetTableListIndex(&pReader->status); goto _begin; } else { code = initForFirstBlockInFile(pReader, pBlockIter); // error happens or all the data files are completely checked if ((code != TSDB_CODE_SUCCESS) || (pReader->status.loadFromFile == false)) { return code; } // this file does not have blocks, let's start check the last block file if (pBlockIter->numOfBlocks == 0) { resetTableListIndex(&pReader->status); goto _begin; } } } } code = doBuildDataBlock(pReader); } if (code != TSDB_CODE_SUCCESS) { return code; } if (pReader->pResBlock->info.rows > 0) { return TSDB_CODE_SUCCESS; } } } static STsdb* getTsdbByRetentions(SVnode* pVnode, TSKEY winSKey, SRetention* retentions, const char* idStr, int8_t* pLevel) { if (VND_IS_RSMA(pVnode)) { int8_t level = 0; int8_t precision = pVnode->config.tsdbCfg.precision; int64_t now = taosGetTimestamp(precision); int64_t offset = tsQueryRsmaTolerance * ((precision == TSDB_TIME_PRECISION_MILLI) ? 1L : (precision == TSDB_TIME_PRECISION_MICRO) ? 1000L : 1000000L); for (int8_t i = 0; i < TSDB_RETENTION_MAX; ++i) { SRetention* pRetention = retentions + level; if (pRetention->keep <= 0) { if (level > 0) { --level; } break; } if ((now - pRetention->keep) <= (winSKey + offset)) { break; } ++level; } const char* str = (idStr != NULL) ? idStr : ""; if (level == TSDB_RETENTION_L0) { *pLevel = TSDB_RETENTION_L0; tsdbDebug("vgId:%d, rsma level %d is selected to query %s", TD_VID(pVnode), TSDB_RETENTION_L0, str); return VND_RSMA0(pVnode); } else if (level == TSDB_RETENTION_L1) { *pLevel = TSDB_RETENTION_L1; tsdbDebug("vgId:%d, rsma level %d is selected to query %s", TD_VID(pVnode), TSDB_RETENTION_L1, str); return VND_RSMA1(pVnode); } else { *pLevel = TSDB_RETENTION_L2; tsdbDebug("vgId:%d, rsma level %d is selected to query %s", TD_VID(pVnode), TSDB_RETENTION_L2, str); return VND_RSMA2(pVnode); } } return VND_TSDB(pVnode); } SVersionRange getQueryVerRange(SVnode* pVnode, SQueryTableDataCond* pCond, int8_t level) { int64_t startVer = (pCond->startVersion == -1) ? 0 : pCond->startVersion; int64_t endVer = 0; if (pCond->endVersion == -1) { // user not specified end version, set current maximum version of vnode as the endVersion endVer = pVnode->state.applied; } else { endVer = (pCond->endVersion > pVnode->state.applied) ? pVnode->state.applied : pCond->endVersion; } return (SVersionRange){.minVer = startVer, .maxVer = endVer}; } bool hasBeenDropped(const SArray* pDelList, int32_t* index, TSDBKEY* pKey, int32_t order, SVersionRange* pVerRange) { if (pDelList == NULL) { return false; } size_t num = taosArrayGetSize(pDelList); bool asc = ASCENDING_TRAVERSE(order); int32_t step = asc ? 1 : -1; if (asc) { if (*index >= num - 1) { TSDBKEY* last = taosArrayGetLast(pDelList); ASSERT(pKey->ts >= last->ts); if (pKey->ts > last->ts) { return false; } else if (pKey->ts == last->ts) { TSDBKEY* prev = taosArrayGet(pDelList, num - 2); return (prev->version >= pKey->version && prev->version <= pVerRange->maxVer && prev->version >= pVerRange->minVer); } } else { TSDBKEY* pCurrent = taosArrayGet(pDelList, *index); TSDBKEY* pNext = taosArrayGet(pDelList, (*index) + 1); if (pKey->ts < pCurrent->ts) { return false; } if (pCurrent->ts <= pKey->ts && pNext->ts >= pKey->ts && pCurrent->version >= pKey->version && pVerRange->maxVer >= pCurrent->version) { return true; } while (pNext->ts <= pKey->ts && (*index) < num - 1) { (*index) += 1; if ((*index) < num - 1) { pCurrent = taosArrayGet(pDelList, *index); pNext = taosArrayGet(pDelList, (*index) + 1); // it is not a consecutive deletion range, ignore it if (pCurrent->version == 0 && pNext->version > 0) { continue; } if (pCurrent->ts <= pKey->ts && pNext->ts >= pKey->ts && pCurrent->version >= pKey->version && pVerRange->maxVer >= pCurrent->version) { return true; } } } return false; } } else { if (*index <= 0) { TSDBKEY* pFirst = taosArrayGet(pDelList, 0); if (pKey->ts < pFirst->ts) { return false; } else if (pKey->ts == pFirst->ts) { return pFirst->version >= pKey->version; } else { ASSERT(0); } } else { TSDBKEY* pCurrent = taosArrayGet(pDelList, *index); TSDBKEY* pPrev = taosArrayGet(pDelList, (*index) - 1); if (pKey->ts > pCurrent->ts) { return false; } if (pPrev->ts <= pKey->ts && pCurrent->ts >= pKey->ts && pPrev->version >= pKey->version) { return true; } while (pPrev->ts >= pKey->ts && (*index) > 1) { (*index) += step; if ((*index) >= 1) { pCurrent = taosArrayGet(pDelList, *index); pPrev = taosArrayGet(pDelList, (*index) - 1); // it is not a consecutive deletion range, ignore it if (pCurrent->version > 0 && pPrev->version == 0) { continue; } if (pPrev->ts <= pKey->ts && pCurrent->ts >= pKey->ts && pPrev->version >= pKey->version) { return true; } } } return false; } } return false; } TSDBROW* getValidMemRow(SIterInfo* pIter, const SArray* pDelList, STsdbReader* pReader) { if (!pIter->hasVal) { return NULL; } TSDBROW* pRow = tsdbTbDataIterGet(pIter->iter); TSDBKEY key = TSDBROW_KEY(pRow); if (outOfTimeWindow(key.ts, &pReader->window)) { pIter->hasVal = false; return NULL; } // it is a valid data version if ((key.version <= pReader->verRange.maxVer && key.version >= pReader->verRange.minVer) && (!hasBeenDropped(pDelList, &pIter->index, &key, pReader->order, &pReader->verRange))) { return pRow; } while (1) { pIter->hasVal = tsdbTbDataIterNext(pIter->iter); if (!pIter->hasVal) { return NULL; } pRow = tsdbTbDataIterGet(pIter->iter); key = TSDBROW_KEY(pRow); if (outOfTimeWindow(key.ts, &pReader->window)) { pIter->hasVal = false; return NULL; } if (key.version <= pReader->verRange.maxVer && key.version >= pReader->verRange.minVer && (!hasBeenDropped(pDelList, &pIter->index, &key, pReader->order, &pReader->verRange))) { return pRow; } } } int32_t doMergeRowsInBuf(SIterInfo* pIter, uint64_t uid, int64_t ts, SArray* pDelList, SRowMerger* pMerger, STsdbReader* pReader) { while (1) { pIter->hasVal = tsdbTbDataIterNext(pIter->iter); if (!pIter->hasVal) { break; } // data exists but not valid TSDBROW* pRow = getValidMemRow(pIter, pDelList, pReader); if (pRow == NULL) { break; } // ts is not identical, quit TSDBKEY k = TSDBROW_KEY(pRow); if (k.ts != ts) { break; } if (pRow->type == TSDBROW_ROW_FMT) { STSchema* pTSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, uid); if (pTSchema == NULL) { return terrno; } tsdbRowMergerAdd(pMerger, pRow, pTSchema); } else { // column format tsdbRowMerge(pMerger, pRow); } } return TSDB_CODE_SUCCESS; } static int32_t doMergeRowsInFileBlockImpl(SBlockData* pBlockData, int32_t rowIndex, int64_t key, SRowMerger* pMerger, SVersionRange* pVerRange, int32_t step) { while (rowIndex < pBlockData->nRow && rowIndex >= 0 && pBlockData->aTSKEY[rowIndex] == key) { if (pBlockData->aVersion[rowIndex] > pVerRange->maxVer || pBlockData->aVersion[rowIndex] < pVerRange->minVer) { rowIndex += step; continue; } TSDBROW fRow = tsdbRowFromBlockData(pBlockData, rowIndex); tsdbRowMerge(pMerger, &fRow); rowIndex += step; } return rowIndex; } typedef enum { CHECK_FILEBLOCK_CONT = 0x1, CHECK_FILEBLOCK_QUIT = 0x2, } CHECK_FILEBLOCK_STATE; static int32_t checkForNeighborFileBlock(STsdbReader* pReader, STableBlockScanInfo* pScanInfo, SDataBlk* pBlock, SFileDataBlockInfo* pFBlock, SRowMerger* pMerger, int64_t key, CHECK_FILEBLOCK_STATE* state) { SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; SBlockData* pBlockData = &pReader->status.fileBlockData; bool asc = ASCENDING_TRAVERSE(pReader->order); *state = CHECK_FILEBLOCK_QUIT; int32_t step = ASCENDING_TRAVERSE(pReader->order) ? 1 : -1; bool loadNeighbor = true; int32_t code = loadNeighborIfOverlap(pFBlock, pScanInfo, pReader, &loadNeighbor); if (loadNeighbor && (code == TSDB_CODE_SUCCESS)) { pDumpInfo->rowIndex = doMergeRowsInFileBlockImpl(pBlockData, pDumpInfo->rowIndex, key, pMerger, &pReader->verRange, step); if ((pDumpInfo->rowIndex >= pDumpInfo->totalRows && asc) || (pDumpInfo->rowIndex < 0 && !asc)) { *state = CHECK_FILEBLOCK_CONT; } } return code; } int32_t doMergeRowsInFileBlocks(SBlockData* pBlockData, STableBlockScanInfo* pScanInfo, STsdbReader* pReader, SRowMerger* pMerger) { SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; bool asc = ASCENDING_TRAVERSE(pReader->order); int64_t key = pBlockData->aTSKEY[pDumpInfo->rowIndex]; int32_t step = asc ? 1 : -1; pDumpInfo->rowIndex += step; if ((pDumpInfo->rowIndex <= pBlockData->nRow - 1 && asc) || (pDumpInfo->rowIndex >= 0 && !asc)) { pDumpInfo->rowIndex = doMergeRowsInFileBlockImpl(pBlockData, pDumpInfo->rowIndex, key, pMerger, &pReader->verRange, step); } // all rows are consumed, let's try next file block if ((pDumpInfo->rowIndex >= pBlockData->nRow && asc) || (pDumpInfo->rowIndex < 0 && !asc)) { while (1) { CHECK_FILEBLOCK_STATE st; SFileDataBlockInfo* pFileBlockInfo = getCurrentBlockInfo(&pReader->status.blockIter); SDataBlk* pCurrentBlock = getCurrentBlock(&pReader->status.blockIter); if (pFileBlockInfo == NULL) { st = CHECK_FILEBLOCK_QUIT; break; } checkForNeighborFileBlock(pReader, pScanInfo, pCurrentBlock, pFileBlockInfo, pMerger, key, &st); if (st == CHECK_FILEBLOCK_QUIT) { break; } } } return TSDB_CODE_SUCCESS; } int32_t doMergeRowsInLastBlock(SLastBlockReader* pLastBlockReader, STableBlockScanInfo* pScanInfo, int64_t ts, SRowMerger* pMerger, SVersionRange* pVerRange, const char* idStr) { while (nextRowFromLastBlocks(pLastBlockReader, pScanInfo, pVerRange)) { int64_t next1 = getCurrentKeyInLastBlock(pLastBlockReader); if (next1 == ts) { TSDBROW fRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); tsdbRowMerge(pMerger, &fRow1); } else { tsdbTrace("uid:%" PRIu64 " last del index:%d, del range:%d, lastKeyInStt:%" PRId64 ", %s", pScanInfo->uid, pScanInfo->lastBlockDelIndex, (int32_t)taosArrayGetSize(pScanInfo->delSkyline), pScanInfo->lastKeyInStt, idStr); break; } } return TSDB_CODE_SUCCESS; } int32_t doMergeMemTableMultiRows(TSDBROW* pRow, uint64_t uid, SIterInfo* pIter, SArray* pDelList, TSDBROW* pResRow, STsdbReader* pReader, bool* freeTSRow) { TSDBROW* pNextRow = NULL; TSDBROW current = *pRow; { // if the timestamp of the next valid row has a different ts, return current row directly pIter->hasVal = tsdbTbDataIterNext(pIter->iter); if (!pIter->hasVal) { *pResRow = *pRow; *freeTSRow = false; return TSDB_CODE_SUCCESS; } else { // has next point in mem/imem pNextRow = getValidMemRow(pIter, pDelList, pReader); if (pNextRow == NULL) { *pResRow = current; *freeTSRow = false; return TSDB_CODE_SUCCESS; } if (TSDBROW_TS(¤t) != TSDBROW_TS(pNextRow)) { *pResRow = current; *freeTSRow = false; return TSDB_CODE_SUCCESS; } } } SRowMerger merge = {0}; terrno = 0; int32_t code = 0; // start to merge duplicated rows if (current.type == TSDBROW_ROW_FMT) { // get the correct schema for data in memory STSchema* pTSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(¤t), pReader, uid); if (pTSchema == NULL) { return terrno; } if (pReader->pSchema == NULL) { pReader->pSchema = pTSchema; } code = tsdbRowMergerInit2(&merge, pReader->pSchema, ¤t, pTSchema); if (code != TSDB_CODE_SUCCESS) { return code; } STSchema* pTSchema1 = doGetSchemaForTSRow(TSDBROW_SVERSION(pNextRow), pReader, uid); if (pTSchema1 == NULL) { return terrno; } tsdbRowMergerAdd(&merge, pNextRow, pTSchema1); } else { // let's merge rows in file block code = tsdbRowMergerInit(&merge, ¤t, pReader->pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } tsdbRowMerge(&merge, pNextRow); } code = doMergeRowsInBuf(pIter, uid, TSDBROW_TS(¤t), pDelList, &merge, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } code = tsdbRowMergerGetRow(&merge, &pResRow->pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } pResRow->type = TSDBROW_ROW_FMT; tsdbRowMergerClear(&merge); *freeTSRow = true; return TSDB_CODE_SUCCESS; } int32_t doMergeMemIMemRows(TSDBROW* pRow, TSDBROW* piRow, STableBlockScanInfo* pBlockScanInfo, STsdbReader* pReader, SRow** pTSRow) { SRowMerger merge = {0}; TSDBKEY k = TSDBROW_KEY(pRow); TSDBKEY ik = TSDBROW_KEY(piRow); if (ASCENDING_TRAVERSE(pReader->order)) { // ascending order imem --> mem STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); int32_t code = tsdbRowMergerInit(&merge, piRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } code = doMergeRowsInBuf(&pBlockScanInfo->iiter, pBlockScanInfo->uid, ik.ts, pBlockScanInfo->delSkyline, &merge, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } tsdbRowMerge(&merge, pRow); code = doMergeRowsInBuf(&pBlockScanInfo->iter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, &merge, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } else { STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); int32_t code = tsdbRowMergerInit(&merge, pRow, pSchema); if (code != TSDB_CODE_SUCCESS || merge.pTSchema == NULL) { return code; } code = doMergeRowsInBuf(&pBlockScanInfo->iter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, &merge, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } tsdbRowMerge(&merge, piRow); code = doMergeRowsInBuf(&pBlockScanInfo->iiter, pBlockScanInfo->uid, ik.ts, pBlockScanInfo->delSkyline, &merge, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } int32_t code = tsdbRowMergerGetRow(&merge, pTSRow); tsdbRowMergerClear(&merge); return code; } int32_t tsdbGetNextRowInMem(STableBlockScanInfo* pBlockScanInfo, STsdbReader* pReader, TSDBROW* pResRow, int64_t endKey, bool* freeTSRow) { TSDBROW* pRow = getValidMemRow(&pBlockScanInfo->iter, pBlockScanInfo->delSkyline, pReader); TSDBROW* piRow = getValidMemRow(&pBlockScanInfo->iiter, pBlockScanInfo->delSkyline, pReader); SArray* pDelList = pBlockScanInfo->delSkyline; uint64_t uid = pBlockScanInfo->uid; // todo refactor bool asc = ASCENDING_TRAVERSE(pReader->order); if (pBlockScanInfo->iter.hasVal) { TSDBKEY k = TSDBROW_KEY(pRow); if ((k.ts >= endKey && asc) || (k.ts <= endKey && !asc)) { pRow = NULL; } } if (pBlockScanInfo->iiter.hasVal) { TSDBKEY k = TSDBROW_KEY(piRow); if ((k.ts >= endKey && asc) || (k.ts <= endKey && !asc)) { piRow = NULL; } } if (pBlockScanInfo->iter.hasVal && pBlockScanInfo->iiter.hasVal && pRow != NULL && piRow != NULL) { TSDBKEY k = TSDBROW_KEY(pRow); TSDBKEY ik = TSDBROW_KEY(piRow); int32_t code = TSDB_CODE_SUCCESS; if (ik.ts != k.ts) { if (((ik.ts < k.ts) && asc) || ((ik.ts > k.ts) && (!asc))) { // ik.ts < k.ts code = doMergeMemTableMultiRows(piRow, uid, &pBlockScanInfo->iiter, pDelList, pResRow, pReader, freeTSRow); } else if (((k.ts < ik.ts) && asc) || ((k.ts > ik.ts) && (!asc))) { code = doMergeMemTableMultiRows(pRow, uid, &pBlockScanInfo->iter, pDelList, pResRow, pReader, freeTSRow); } } else { // ik.ts == k.ts *freeTSRow = true; pResRow->type = TSDBROW_ROW_FMT; code = doMergeMemIMemRows(pRow, piRow, pBlockScanInfo, pReader, &pResRow->pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } } return code; } if (pBlockScanInfo->iter.hasVal && pRow != NULL) { return doMergeMemTableMultiRows(pRow, pBlockScanInfo->uid, &pBlockScanInfo->iter, pDelList, pResRow, pReader, freeTSRow); } if (pBlockScanInfo->iiter.hasVal && piRow != NULL) { return doMergeMemTableMultiRows(piRow, uid, &pBlockScanInfo->iiter, pDelList, pResRow, pReader, freeTSRow); } return TSDB_CODE_SUCCESS; } int32_t doAppendRowFromTSRow(SSDataBlock* pBlock, STsdbReader* pReader, SRow* pTSRow, STableBlockScanInfo* pScanInfo) { int32_t outputRowIndex = pBlock->info.rows; int64_t uid = pScanInfo->uid; int32_t numOfCols = (int32_t)taosArrayGetSize(pBlock->pDataBlock); SBlockLoadSuppInfo* pSupInfo = &pReader->suppInfo; STSchema* pSchema = doGetSchemaForTSRow(pTSRow->sver, pReader, uid); SColVal colVal = {0}; int32_t i = 0, j = 0; if (pSupInfo->colId[i] == PRIMARYKEY_TIMESTAMP_COL_ID) { SColumnInfoData* pColData = taosArrayGet(pBlock->pDataBlock, pSupInfo->slotId[i]); ((int64_t*)pColData->pData)[outputRowIndex] = pTSRow->ts; i += 1; } while (i < pSupInfo->numOfCols && j < pSchema->numOfCols) { col_id_t colId = pSupInfo->colId[i]; if (colId == pSchema->columns[j].colId) { SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, pSupInfo->slotId[i]); tRowGet(pTSRow, pSchema, j, &colVal); doCopyColVal(pColInfoData, outputRowIndex, i, &colVal, pSupInfo); i += 1; j += 1; } else if (colId < pSchema->columns[j].colId) { SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, pSupInfo->slotId[i]); colDataSetNULL(pColInfoData, outputRowIndex); i += 1; } else if (colId > pSchema->columns[j].colId) { j += 1; } } // set null value since current column does not exist in the "pSchema" while (i < pSupInfo->numOfCols) { SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, pSupInfo->slotId[i]); colDataSetNULL(pColInfoData, outputRowIndex); i += 1; } pBlock->info.dataLoad = 1; pBlock->info.rows += 1; pScanInfo->lastKey = pTSRow->ts; return TSDB_CODE_SUCCESS; } int32_t doAppendRowFromFileBlock(SSDataBlock* pResBlock, STsdbReader* pReader, SBlockData* pBlockData, int32_t rowIndex) { int32_t i = 0, j = 0; int32_t outputRowIndex = pResBlock->info.rows; SBlockLoadSuppInfo* pSupInfo = &pReader->suppInfo; if (pReader->suppInfo.colId[i] == PRIMARYKEY_TIMESTAMP_COL_ID) { SColumnInfoData* pColData = taosArrayGet(pResBlock->pDataBlock, pSupInfo->slotId[i]); ((int64_t*)pColData->pData)[outputRowIndex] = pBlockData->aTSKEY[rowIndex]; i += 1; } SColVal cv = {0}; int32_t numOfInputCols = pBlockData->nColData; int32_t numOfOutputCols = pSupInfo->numOfCols; while (i < numOfOutputCols && j < numOfInputCols) { SColData* pData = tBlockDataGetColDataByIdx(pBlockData, j); if (pData->cid < pSupInfo->colId[i]) { j += 1; continue; } SColumnInfoData* pCol = TARRAY_GET_ELEM(pResBlock->pDataBlock, pSupInfo->slotId[i]); if (pData->cid == pSupInfo->colId[i]) { tColDataGetValue(pData, rowIndex, &cv); doCopyColVal(pCol, outputRowIndex, i, &cv, pSupInfo); j += 1; } else if (pData->cid > pCol->info.colId) { // the specified column does not exist in file block, fill with null data colDataSetNULL(pCol, outputRowIndex); } i += 1; } while (i < numOfOutputCols) { SColumnInfoData* pCol = taosArrayGet(pResBlock->pDataBlock, pSupInfo->slotId[i]); colDataSetNULL(pCol, outputRowIndex); i += 1; } pResBlock->info.dataLoad = 1; pResBlock->info.rows += 1; return TSDB_CODE_SUCCESS; } int32_t buildDataBlockFromBufImpl(STableBlockScanInfo* pBlockScanInfo, int64_t endKey, int32_t capacity, STsdbReader* pReader) { SSDataBlock* pBlock = pReader->pResBlock; do { // SRow* pTSRow = NULL; TSDBROW row = {.type = -1}; bool freeTSRow = false; tsdbGetNextRowInMem(pBlockScanInfo, pReader, &row, endKey, &freeTSRow); if (row.type == -1) { break; } if (row.type == TSDBROW_ROW_FMT) { doAppendRowFromTSRow(pBlock, pReader, row.pTSRow, pBlockScanInfo); if (freeTSRow) { taosMemoryFree(row.pTSRow); } } else { doAppendRowFromFileBlock(pBlock, pReader, row.pBlockData, row.iRow); } // no data in buffer, return immediately if (!(pBlockScanInfo->iter.hasVal || pBlockScanInfo->iiter.hasVal)) { break; } if (pBlock->info.rows >= capacity) { break; } } while (1); return TSDB_CODE_SUCCESS; } // TODO refactor: with createDataBlockScanInfo int32_t tsdbSetTableList(STsdbReader* pReader, const void* pTableList, int32_t num) { int32_t size = taosHashGetSize(pReader->status.pTableMap); STableBlockScanInfo** p = NULL; while ((p = taosHashIterate(pReader->status.pTableMap, p)) != NULL) { clearBlockScanInfo(*p); } if (size < num) { int32_t code = ensureBlockScanInfoBuf(&pReader->blockInfoBuf, num); if (code) { return code; } pReader->status.uidList.tableUidList = (uint64_t*)taosMemoryRealloc(pReader->status.uidList.tableUidList, sizeof(uint64_t) * num); } taosHashClear(pReader->status.pTableMap); STableUidList* pUidList = &pReader->status.uidList; pUidList->currentIndex = 0; STableKeyInfo* pList = (STableKeyInfo*)pTableList; for (int32_t i = 0; i < num; ++i) { STableBlockScanInfo* pInfo = getPosInBlockInfoBuf(&pReader->blockInfoBuf, i); pInfo->uid = pList[i].uid; pUidList->tableUidList[i] = pList[i].uid; // todo extract method if (ASCENDING_TRAVERSE(pReader->order)) { int64_t skey = pReader->window.skey; pInfo->lastKey = (skey > INT64_MIN) ? (skey - 1) : skey; pInfo->lastKeyInStt = skey; } else { int64_t ekey = pReader->window.ekey; pInfo->lastKey = (ekey < INT64_MAX) ? (ekey + 1) : ekey; pInfo->lastKeyInStt = ekey; } taosHashPut(pReader->status.pTableMap, &pInfo->uid, sizeof(uint64_t), &pInfo, POINTER_BYTES); } return TDB_CODE_SUCCESS; } void* tsdbGetIdx(SMeta* pMeta) { if (pMeta == NULL) { return NULL; } return metaGetIdx(pMeta); } void* tsdbGetIvtIdx(SMeta* pMeta) { if (pMeta == NULL) { return NULL; } return metaGetIvtIdx(pMeta); } uint64_t getReaderMaxVersion(STsdbReader* pReader) { return pReader->verRange.maxVer; } static int32_t doOpenReaderImpl(STsdbReader* pReader) { SReaderStatus* pStatus = &pReader->status; SDataBlockIter* pBlockIter = &pStatus->blockIter; initFilesetIterator(&pStatus->fileIter, pReader->pReadSnap->fs.aDFileSet, pReader); resetDataBlockIterator(&pStatus->blockIter, pReader->order); int32_t code = TSDB_CODE_SUCCESS; if (pStatus->fileIter.numOfFiles == 0) { pStatus->loadFromFile = false; } else { code = initForFirstBlockInFile(pReader, pBlockIter); } if (!pStatus->loadFromFile) { resetTableListIndex(pStatus); } return code; } // ====================================== EXPOSED APIs ====================================== int32_t tsdbReaderOpen(SVnode* pVnode, SQueryTableDataCond* pCond, void* pTableList, int32_t numOfTables, SSDataBlock* pResBlock, STsdbReader** ppReader, const char* idstr) { STimeWindow window = pCond->twindows; if (pCond->type == TIMEWINDOW_RANGE_EXTERNAL) { pCond->twindows.skey += 1; pCond->twindows.ekey -= 1; } int32_t capacity = pVnode->config.tsdbCfg.maxRows; if (pResBlock != NULL) { blockDataEnsureCapacity(pResBlock, capacity); } int32_t code = tsdbReaderCreate(pVnode, pCond, ppReader, capacity, pResBlock, idstr); if (code != TSDB_CODE_SUCCESS) { goto _err; } // check for query time window STsdbReader* pReader = *ppReader; if (isEmptyQueryTimeWindow(&pReader->window) && pCond->type == TIMEWINDOW_RANGE_CONTAINED) { tsdbDebug("%p query window not overlaps with the data set, no result returned, %s", pReader, pReader->idStr); return TSDB_CODE_SUCCESS; } if (pCond->type == TIMEWINDOW_RANGE_EXTERNAL) { // update the SQueryTableDataCond to create inner reader int32_t order = pCond->order; if (order == TSDB_ORDER_ASC) { pCond->twindows.ekey = window.skey; pCond->twindows.skey = INT64_MIN; pCond->order = TSDB_ORDER_DESC; } else { pCond->twindows.skey = window.ekey; pCond->twindows.ekey = INT64_MAX; pCond->order = TSDB_ORDER_ASC; } // here we only need one more row, so the capacity is set to be ONE. code = tsdbReaderCreate(pVnode, pCond, &pReader->innerReader[0], 1, pResBlock, idstr); if (code != TSDB_CODE_SUCCESS) { goto _err; } if (order == TSDB_ORDER_ASC) { pCond->twindows.skey = window.ekey; pCond->twindows.ekey = INT64_MAX; } else { pCond->twindows.skey = INT64_MIN; pCond->twindows.ekey = window.ekey; } pCond->order = order; code = tsdbReaderCreate(pVnode, pCond, &pReader->innerReader[1], 1, pResBlock, idstr); if (code != TSDB_CODE_SUCCESS) { goto _err; } } // NOTE: the endVersion in pCond is the data version not schema version, so pCond->endVersion is not correct here. // no valid error code set in metaGetTbTSchema, so let's set the error code here. // we should proceed in case of tmq processing. if (pCond->suid != 0) { pReader->pSchema = metaGetTbTSchema(pReader->pTsdb->pVnode->pMeta, pReader->suid, -1, 1); if (pReader->pSchema == NULL) { tsdbError("failed to get table schema, suid:%" PRIu64 ", ver:-1, %s", pReader->suid, pReader->idStr); } } else if (numOfTables > 0) { STableKeyInfo* pKey = pTableList; pReader->pSchema = metaGetTbTSchema(pReader->pTsdb->pVnode->pMeta, pKey->uid, -1, 1); if (pReader->pSchema == NULL) { tsdbError("failed to get table schema, uid:%" PRIu64 ", ver:-1, %s", pKey->uid, pReader->idStr); } } if (pReader->pSchema != NULL) { code = updateBlockSMAInfo(pReader->pSchema, &pReader->suppInfo); if (code != TSDB_CODE_SUCCESS) { goto _err; } } STsdbReader* p = (pReader->innerReader[0] != NULL) ? pReader->innerReader[0] : pReader; pReader->status.pTableMap = createDataBlockScanInfo(p, &pReader->blockInfoBuf, pTableList, &pReader->status.uidList, numOfTables); if (pReader->status.pTableMap == NULL) { *ppReader = NULL; code = TSDB_CODE_OUT_OF_MEMORY; goto _err; } pReader->suspended = true; tsdbDebug("%p total numOfTable:%d in this query %s", pReader, numOfTables, pReader->idStr); return code; _err: tsdbError("failed to create data reader, code:%s %s", tstrerror(code), idstr); tsdbReaderClose(pReader); *ppReader = NULL; // reset the pointer value. return code; } void tsdbReaderClose(STsdbReader* pReader) { if (pReader == NULL) { return; } tsdbAcquireReader(pReader); { if (pReader->innerReader[0] != NULL || pReader->innerReader[1] != NULL) { STsdbReader* p = pReader->innerReader[0]; p->status.pTableMap = NULL; p->status.uidList.tableUidList = NULL; p->pReadSnap = NULL; p->pSchema = NULL; p->pMemSchema = NULL; p = pReader->innerReader[1]; p->status.pTableMap = NULL; p->status.uidList.tableUidList = NULL; p->pReadSnap = NULL; p->pSchema = NULL; p->pMemSchema = NULL; tsdbReaderClose(pReader->innerReader[0]); tsdbReaderClose(pReader->innerReader[1]); } } SBlockLoadSuppInfo* pSupInfo = &pReader->suppInfo; taosArrayDestroy(pSupInfo->pColAgg); for (int32_t i = 0; i < pSupInfo->numOfCols; ++i) { if (pSupInfo->buildBuf[i] != NULL) { taosMemoryFreeClear(pSupInfo->buildBuf[i]); } } if (pReader->freeBlock) { pReader->pResBlock = blockDataDestroy(pReader->pResBlock); } taosMemoryFree(pSupInfo->colId); tBlockDataDestroy(&pReader->status.fileBlockData); cleanupDataBlockIterator(&pReader->status.blockIter); size_t numOfTables = taosHashGetSize(pReader->status.pTableMap); if (pReader->status.pTableMap != NULL) { destroyAllBlockScanInfo(pReader->status.pTableMap); clearBlockScanInfoBuf(&pReader->blockInfoBuf); } if (pReader->pFileReader != NULL) { tsdbDataFReaderClose(&pReader->pFileReader); } if (pReader->pDelFReader != NULL) { tsdbDelFReaderClose(&pReader->pDelFReader); } if (pReader->pDelIdx != NULL) { taosArrayDestroy(pReader->pDelIdx); pReader->pDelIdx = NULL; } qTrace("tsdb/reader-close: %p, untake snapshot", pReader); tsdbUntakeReadSnap(pReader, pReader->pReadSnap, true); pReader->pReadSnap = NULL; tsdbReleaseReader(pReader); tsdbUninitReaderLock(pReader); taosMemoryFree(pReader->status.uidList.tableUidList); SIOCostSummary* pCost = &pReader->cost; SFilesetIter* pFilesetIter = &pReader->status.fileIter; if (pFilesetIter->pLastBlockReader != NULL) { SLastBlockReader* pLReader = pFilesetIter->pLastBlockReader; tMergeTreeClose(&pLReader->mergeTree); getLastBlockLoadInfo(pLReader->pInfo, &pCost->lastBlockLoad, &pCost->lastBlockLoadTime); pLReader->pInfo = destroyLastBlockLoadInfo(pLReader->pInfo); taosMemoryFree(pLReader); } tsdbDebug( "%p :io-cost summary: head-file:%" PRIu64 ", head-file time:%.2f ms, SMA:%" PRId64 " SMA-time:%.2f ms, fileBlocks:%" PRId64 ", fileBlocks-load-time:%.2f ms, " "build in-memory-block-time:%.2f ms, lastBlocks:%" PRId64 ", lastBlocks-time:%.2f ms, composed-blocks:%" PRId64 ", composed-blocks-time:%.2fms, STableBlockScanInfo size:%.2f Kb, createTime:%.2f ms,initDelSkylineIterTime:%.2f " "ms, %s", pReader, pCost->headFileLoad, pCost->headFileLoadTime, pCost->smaDataLoad, pCost->smaLoadTime, pCost->numOfBlocks, pCost->blockLoadTime, pCost->buildmemBlock, pCost->lastBlockLoad, pCost->lastBlockLoadTime, pCost->composedBlocks, pCost->buildComposedBlockTime, numOfTables * sizeof(STableBlockScanInfo) / 1000.0, pCost->createScanInfoList, pCost->initDelSkylineIterTime, pReader->idStr); taosMemoryFree(pReader->idStr); taosMemoryFree(pReader->pSchema); if (pReader->pMemSchema != pReader->pSchema) { taosMemoryFree(pReader->pMemSchema); } taosMemoryFreeClear(pReader); } int32_t tsdbReaderSuspend(STsdbReader* pReader) { int32_t code = 0; // save reader's base state & reset top state to be reconstructed from base state SReaderStatus* pStatus = &pReader->status; STableBlockScanInfo* pBlockScanInfo = NULL; if (pStatus->loadFromFile) { SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(&pReader->status.blockIter); if (pBlockInfo != NULL) { pBlockScanInfo = getTableBlockScanInfo(pStatus->pTableMap, pBlockInfo->uid, pReader->idStr); if (pBlockScanInfo == NULL) { goto _err; } } else { pBlockScanInfo = *pStatus->pTableIter; } tsdbDataFReaderClose(&pReader->pFileReader); // resetDataBlockScanInfo excluding lastKey STableBlockScanInfo** p = NULL; while ((p = taosHashIterate(pStatus->pTableMap, p)) != NULL) { STableBlockScanInfo* pInfo = *(STableBlockScanInfo**)p; pInfo->iterInit = false; pInfo->iter.hasVal = false; pInfo->iiter.hasVal = false; if (pInfo->iter.iter != NULL) { pInfo->iter.iter = tsdbTbDataIterDestroy(pInfo->iter.iter); } if (pInfo->iiter.iter != NULL) { pInfo->iiter.iter = tsdbTbDataIterDestroy(pInfo->iiter.iter); } pInfo->delSkyline = taosArrayDestroy(pInfo->delSkyline); // pInfo->lastKey = ts; } } else { // resetDataBlockScanInfo excluding lastKey STableBlockScanInfo** p = NULL; while ((p = taosHashIterate(pStatus->pTableMap, p)) != NULL) { STableBlockScanInfo* pInfo = *(STableBlockScanInfo**)p; pInfo->iterInit = false; pInfo->iter.hasVal = false; pInfo->iiter.hasVal = false; if (pInfo->iter.iter != NULL) { pInfo->iter.iter = tsdbTbDataIterDestroy(pInfo->iter.iter); } if (pInfo->iiter.iter != NULL) { pInfo->iiter.iter = tsdbTbDataIterDestroy(pInfo->iiter.iter); } pInfo->delSkyline = taosArrayDestroy(pInfo->delSkyline); // pInfo->lastKey = ts; } pBlockScanInfo = pStatus->pTableIter == NULL ? NULL : *pStatus->pTableIter; if (pBlockScanInfo) { // save lastKey to restore memory iterator STimeWindow w = pReader->pResBlock->info.window; pBlockScanInfo->lastKey = ASCENDING_TRAVERSE(pReader->order) ? w.ekey : w.skey; // reset current current table's data block scan info, pBlockScanInfo->iterInit = false; pBlockScanInfo->iter.hasVal = false; pBlockScanInfo->iiter.hasVal = false; if (pBlockScanInfo->iter.iter != NULL) { pBlockScanInfo->iter.iter = tsdbTbDataIterDestroy(pBlockScanInfo->iter.iter); } if (pBlockScanInfo->iiter.iter != NULL) { pBlockScanInfo->iiter.iter = tsdbTbDataIterDestroy(pBlockScanInfo->iiter.iter); } pBlockScanInfo->pBlockList = taosArrayDestroy(pBlockScanInfo->pBlockList); tMapDataClear(&pBlockScanInfo->mapData); // TODO: keep skyline for reuse pBlockScanInfo->delSkyline = taosArrayDestroy(pBlockScanInfo->delSkyline); } } tsdbUntakeReadSnap(pReader, pReader->pReadSnap, false); pReader->pReadSnap = NULL; pReader->suspended = true; tsdbDebug("reader: %p suspended uid %" PRIu64 " in this query %s", pReader, pBlockScanInfo ? pBlockScanInfo->uid : 0, pReader->idStr); return code; _err: tsdbError("failed to suspend data reader, code:%s %s", tstrerror(code), pReader->idStr); return code; } static int32_t tsdbSetQueryReseek(void* pQHandle) { int32_t code = 0; STsdbReader* pReader = pQHandle; code = tsdbTryAcquireReader(pReader); if (code == 0) { if (pReader->suspended) { tsdbReleaseReader(pReader); return code; } tsdbReaderSuspend(pReader); tsdbReleaseReader(pReader); return code; } else if (code == EBUSY) { return TSDB_CODE_VND_QUERY_BUSY; } else { terrno = TAOS_SYSTEM_ERROR(code); return TSDB_CODE_FAILED; } } int32_t tsdbReaderResume(STsdbReader* pReader) { int32_t code = 0; STableBlockScanInfo** pBlockScanInfo = pReader->status.pTableIter; // restore reader's state // task snapshot int32_t numOfTables = taosHashGetSize(pReader->status.pTableMap); if (numOfTables > 0) { qTrace("tsdb/reader: %p, take snapshot", pReader); code = tsdbTakeReadSnap(pReader, tsdbSetQueryReseek, &pReader->pReadSnap); if (code != TSDB_CODE_SUCCESS) { goto _err; } if (pReader->type == TIMEWINDOW_RANGE_CONTAINED) { code = doOpenReaderImpl(pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } else { STsdbReader* pPrevReader = pReader->innerReader[0]; STsdbReader* pNextReader = pReader->innerReader[1]; // we need only one row pPrevReader->capacity = 1; pPrevReader->status.pTableMap = pReader->status.pTableMap; pPrevReader->status.uidList = pReader->status.uidList; pPrevReader->pSchema = pReader->pSchema; pPrevReader->pMemSchema = pReader->pMemSchema; pPrevReader->pReadSnap = pReader->pReadSnap; pNextReader->capacity = 1; pNextReader->status.pTableMap = pReader->status.pTableMap; pNextReader->status.uidList = pReader->status.uidList; pNextReader->pSchema = pReader->pSchema; pNextReader->pMemSchema = pReader->pMemSchema; pNextReader->pReadSnap = pReader->pReadSnap; code = doOpenReaderImpl(pPrevReader); if (code != TSDB_CODE_SUCCESS) { return code; } } } pReader->suspended = false; tsdbDebug("reader: %p resumed uid %" PRIu64 ", numOfTable:%" PRId32 ", in this query %s", pReader, pBlockScanInfo ? (*pBlockScanInfo)->uid : 0, numOfTables, pReader->idStr); return code; _err: tsdbError("failed to resume data reader, code:%s %s", tstrerror(code), pReader->idStr); return code; } static bool doTsdbNextDataBlock(STsdbReader* pReader) { // cleanup the data that belongs to the previous data block SSDataBlock* pBlock = pReader->pResBlock; blockDataCleanup(pBlock); SReaderStatus* pStatus = &pReader->status; if (taosHashGetSize(pStatus->pTableMap) == 0) { return false; } if (pStatus->loadFromFile) { int32_t code = buildBlockFromFiles(pReader); if (code != TSDB_CODE_SUCCESS) { return false; } if (pBlock->info.rows > 0) { return true; } else { resetTableListIndex(&pReader->status); buildBlockFromBufferSequentially(pReader); return pBlock->info.rows > 0; } } else { // no data in files, let's try the buffer buildBlockFromBufferSequentially(pReader); return pBlock->info.rows > 0; } } bool tsdbNextDataBlock(STsdbReader* pReader) { if (isEmptyQueryTimeWindow(&pReader->window) || pReader->step == EXTERNAL_ROWS_NEXT) { return false; } SReaderStatus* pStatus = &pReader->status; int32_t code = tsdbAcquireReader(pReader); qTrace("tsdb/read: %p, take read mutex, code: %d", pReader, code); if (pReader->suspended) { tsdbReaderResume(pReader); } if (pReader->innerReader[0] != NULL && pReader->step == 0) { bool ret = doTsdbNextDataBlock(pReader->innerReader[0]); pReader->step = EXTERNAL_ROWS_PREV; if (ret) { pStatus = &pReader->innerReader[0]->status; if (pStatus->composedDataBlock) { qTrace("tsdb/read: %p, unlock read mutex", pReader); tsdbReleaseReader(pReader); } return ret; } } if (pReader->step == EXTERNAL_ROWS_PREV) { // prepare for the main scan code = doOpenReaderImpl(pReader); int32_t step = 1; resetAllDataBlockScanInfo(pReader->status.pTableMap, pReader->innerReader[0]->window.ekey, step); if (code != TSDB_CODE_SUCCESS) { return code; } pReader->step = EXTERNAL_ROWS_MAIN; } bool ret = doTsdbNextDataBlock(pReader); if (ret) { if (pStatus->composedDataBlock) { qTrace("tsdb/read: %p, unlock read mutex", pReader); tsdbReleaseReader(pReader); } return ret; } if (pReader->step == EXTERNAL_ROWS_MAIN && pReader->innerReader[1] != NULL) { // prepare for the next row scan int32_t step = -1; code = doOpenReaderImpl(pReader->innerReader[1]); resetAllDataBlockScanInfo(pReader->innerReader[1]->status.pTableMap, pReader->window.ekey, step); if (code != TSDB_CODE_SUCCESS) { return code; } ret = doTsdbNextDataBlock(pReader->innerReader[1]); pReader->step = EXTERNAL_ROWS_NEXT; if (ret) { pStatus = &pReader->innerReader[1]->status; if (pStatus->composedDataBlock) { qTrace("tsdb/read: %p, unlock read mutex", pReader); tsdbReleaseReader(pReader); } return ret; } } qTrace("tsdb/read: %p, unlock read mutex", pReader); tsdbReleaseReader(pReader); return false; } static void doFillNullColSMA(SBlockLoadSuppInfo* pSup, int32_t numOfRows, int32_t numOfCols, SColumnDataAgg* pTsAgg) { // do fill all null column value SMA info int32_t i = 0, j = 0; int32_t size = (int32_t)taosArrayGetSize(pSup->pColAgg); taosArrayInsert(pSup->pColAgg, 0, pTsAgg); while (j < numOfCols && i < size) { SColumnDataAgg* pAgg = taosArrayGet(pSup->pColAgg, i); if (pAgg->colId == pSup->colId[j]) { i += 1; j += 1; } else if (pAgg->colId < pSup->colId[j]) { i += 1; } else if (pSup->colId[j] < pAgg->colId) { if (pSup->colId[j] != PRIMARYKEY_TIMESTAMP_COL_ID) { SColumnDataAgg nullColAgg = {.colId = pSup->colId[j], .numOfNull = numOfRows}; taosArrayInsert(pSup->pColAgg, i, &nullColAgg); } j += 1; } } } int32_t tsdbRetrieveDatablockSMA(STsdbReader* pReader, SSDataBlock* pDataBlock, bool* allHave) { SColumnDataAgg*** pBlockSMA = &pDataBlock->pBlockAgg; int32_t code = 0; *allHave = false; *pBlockSMA = NULL; if (pReader->type == TIMEWINDOW_RANGE_EXTERNAL) { return TSDB_CODE_SUCCESS; } // there is no statistics data for composed block if (pReader->status.composedDataBlock || (!pReader->suppInfo.smaValid)) { return TSDB_CODE_SUCCESS; } SFileDataBlockInfo* pFBlock = getCurrentBlockInfo(&pReader->status.blockIter); SBlockLoadSuppInfo* pSup = &pReader->suppInfo; if (pReader->pResBlock->info.id.uid != pFBlock->uid) { return TSDB_CODE_SUCCESS; } int64_t st = taosGetTimestampUs(); SDataBlk* pBlock = getCurrentBlock(&pReader->status.blockIter); if (tDataBlkHasSma(pBlock)) { code = tsdbReadBlockSma(pReader->pFileReader, pBlock, pSup->pColAgg); if (code != TSDB_CODE_SUCCESS) { tsdbDebug("vgId:%d, failed to load block SMA for uid %" PRIu64 ", code:%s, %s", 0, pFBlock->uid, tstrerror(code), pReader->idStr); return code; } } else { *pBlockSMA = NULL; return TSDB_CODE_SUCCESS; } *allHave = true; // always load the first primary timestamp column data SColumnDataAgg* pTsAgg = &pSup->tsColAgg; pTsAgg->numOfNull = 0; pTsAgg->colId = PRIMARYKEY_TIMESTAMP_COL_ID; pTsAgg->min = pReader->pResBlock->info.window.skey; pTsAgg->max = pReader->pResBlock->info.window.ekey; // update the number of NULL data rows size_t numOfCols = pSup->numOfCols; // ensure capacity if (pDataBlock->pDataBlock) { size_t colsNum = taosArrayGetSize(pDataBlock->pDataBlock); taosArrayEnsureCap(pSup->pColAgg, colsNum); } SSDataBlock* pResBlock = pReader->pResBlock; if (pResBlock->pBlockAgg == NULL) { size_t num = taosArrayGetSize(pResBlock->pDataBlock); pResBlock->pBlockAgg = taosMemoryCalloc(num, POINTER_BYTES); } // do fill all null column value SMA info doFillNullColSMA(pSup, pBlock->nRow, numOfCols, pTsAgg); size_t size = taosArrayGetSize(pSup->pColAgg); int32_t i = 0, j = 0; while (j < numOfCols && i < size) { SColumnDataAgg* pAgg = taosArrayGet(pSup->pColAgg, i); if (pAgg->colId == pSup->colId[j]) { pResBlock->pBlockAgg[pSup->slotId[j]] = pAgg; i += 1; j += 1; } else if (pAgg->colId < pSup->colId[j]) { i += 1; } else if (pSup->colId[j] < pAgg->colId) { // ASSERT(pSup->colId[j] == PRIMARYKEY_TIMESTAMP_COL_ID); pResBlock->pBlockAgg[pSup->slotId[j]] = &pSup->tsColAgg; j += 1; } } *pBlockSMA = pResBlock->pBlockAgg; pReader->cost.smaDataLoad += 1; double elapsedTime = (taosGetTimestampUs() - st) / 1000.0; pReader->cost.smaLoadTime += elapsedTime; tsdbDebug("vgId:%d, succeed to load block SMA for uid %" PRIu64 ", %s", 0, pFBlock->uid, pReader->idStr); return code; } STableBlockScanInfo* getTableBlockScanInfo(SHashObj* pTableMap, uint64_t uid, const char* id) { STableBlockScanInfo** p = taosHashGet(pTableMap, &uid, sizeof(uid)); if (p == NULL || *p == NULL) { terrno = TSDB_CODE_INVALID_PARA; int32_t size = taosHashGetSize(pTableMap); tsdbError("failed to locate the uid:%" PRIu64 " in query table uid list, total tables:%d, %s", uid, size, id); return NULL; } return *p; } static SSDataBlock* doRetrieveDataBlock(STsdbReader* pReader) { SReaderStatus* pStatus = &pReader->status; SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(&pStatus->blockIter); STableBlockScanInfo* pBlockScanInfo = getTableBlockScanInfo(pStatus->pTableMap, pBlockInfo->uid, pReader->idStr); if (pBlockScanInfo == NULL) { return NULL; } int32_t code = doLoadFileBlockData(pReader, &pStatus->blockIter, &pStatus->fileBlockData, pBlockScanInfo->uid); if (code != TSDB_CODE_SUCCESS) { tBlockDataDestroy(&pStatus->fileBlockData); terrno = code; return NULL; } copyBlockDataToSDataBlock(pReader); return pReader->pResBlock; } SSDataBlock* tsdbRetrieveDataBlock(STsdbReader* pReader, SArray* pIdList) { STsdbReader* pTReader = pReader; if (pReader->type == TIMEWINDOW_RANGE_EXTERNAL) { if (pReader->step == EXTERNAL_ROWS_PREV) { pTReader = pReader->innerReader[0]; } else if (pReader->step == EXTERNAL_ROWS_NEXT) { pTReader = pReader->innerReader[1]; } } SReaderStatus* pStatus = &pTReader->status; if (pStatus->composedDataBlock) { return pTReader->pResBlock; } SSDataBlock* ret = doRetrieveDataBlock(pTReader); qTrace("tsdb/read-retrieve: %p, unlock read mutex", pReader); tsdbReleaseReader(pReader); return ret; } int32_t tsdbReaderReset(STsdbReader* pReader, SQueryTableDataCond* pCond) { qTrace("tsdb/reader-reset: %p, take read mutex", pReader); tsdbAcquireReader(pReader); if (pReader->suspended) { tsdbReaderResume(pReader); } if (isEmptyQueryTimeWindow(&pReader->window) || pReader->pReadSnap == NULL) { tsdbDebug("tsdb reader reset return %p, %s", pReader->pReadSnap, pReader->idStr); tsdbReleaseReader(pReader); return TSDB_CODE_SUCCESS; } SReaderStatus* pStatus = &pReader->status; SDataBlockIter* pBlockIter = &pStatus->blockIter; pReader->order = pCond->order; pReader->type = TIMEWINDOW_RANGE_CONTAINED; pStatus->loadFromFile = true; pStatus->pTableIter = NULL; pReader->window = updateQueryTimeWindow(pReader->pTsdb, &pCond->twindows); // allocate buffer in order to load data blocks from file memset(&pReader->suppInfo.tsColAgg, 0, sizeof(SColumnDataAgg)); pReader->suppInfo.tsColAgg.colId = PRIMARYKEY_TIMESTAMP_COL_ID; tsdbDataFReaderClose(&pReader->pFileReader); int32_t numOfTables = taosHashGetSize(pStatus->pTableMap); initFilesetIterator(&pStatus->fileIter, pReader->pReadSnap->fs.aDFileSet, pReader); resetDataBlockIterator(pBlockIter, pReader->order); resetTableListIndex(&pReader->status); bool asc = ASCENDING_TRAVERSE(pReader->order); int32_t step = asc? 1:-1; int64_t ts = asc? pReader->window.skey - 1 : pReader->window.ekey + 1; resetAllDataBlockScanInfo(pStatus->pTableMap, ts, step); int32_t code = 0; // no data in files, let's try buffer in memory if (pStatus->fileIter.numOfFiles == 0) { pStatus->loadFromFile = false; resetTableListIndex(pStatus); } else { code = initForFirstBlockInFile(pReader, pBlockIter); if (code != TSDB_CODE_SUCCESS) { tsdbError("%p reset reader failed, numOfTables:%d, query range:%" PRId64 " - %" PRId64 " in query %s", pReader, numOfTables, pReader->window.skey, pReader->window.ekey, pReader->idStr); tsdbReleaseReader(pReader); return code; } } tsdbDebug("%p reset reader, suid:%" PRIu64 ", numOfTables:%d, skey:%" PRId64 ", query range:%" PRId64 " - %" PRId64 " in query %s", pReader, pReader->suid, numOfTables, pCond->twindows.skey, pReader->window.skey, pReader->window.ekey, pReader->idStr); tsdbReleaseReader(pReader); return code; } static int32_t getBucketIndex(int32_t startRow, int32_t bucketRange, int32_t numOfRows, int32_t numOfBucket) { int32_t bucketIndex = (numOfRows - startRow) / bucketRange; if (bucketIndex == numOfBucket) { bucketIndex -= 1; } return bucketIndex; } int32_t tsdbGetFileBlocksDistInfo(STsdbReader* pReader, STableBlockDistInfo* pTableBlockInfo) { int32_t code = TSDB_CODE_SUCCESS; pTableBlockInfo->totalSize = 0; pTableBlockInfo->totalRows = 0; pTableBlockInfo->numOfVgroups = 1; const int32_t numOfBucket = 20.0; // find the start data block in file tsdbAcquireReader(pReader); if (pReader->suspended) { tsdbReaderResume(pReader); } SReaderStatus* pStatus = &pReader->status; STsdbCfg* pc = &pReader->pTsdb->pVnode->config.tsdbCfg; pTableBlockInfo->defMinRows = pc->minRows; pTableBlockInfo->defMaxRows = pc->maxRows; int32_t bucketRange = ceil(((double)(pc->maxRows - pc->minRows)) / numOfBucket); pTableBlockInfo->numOfFiles += 1; int32_t numOfTables = (int32_t)taosHashGetSize(pStatus->pTableMap); int defaultRows = 4096; SDataBlockIter* pBlockIter = &pStatus->blockIter; pTableBlockInfo->numOfFiles += pStatus->fileIter.numOfFiles; if (pBlockIter->numOfBlocks > 0) { pTableBlockInfo->numOfBlocks += pBlockIter->numOfBlocks; } pTableBlockInfo->numOfTables = numOfTables; bool hasNext = (pBlockIter->numOfBlocks > 0); while (true) { if (hasNext) { SDataBlk* pBlock = getCurrentBlock(pBlockIter); int32_t numOfRows = pBlock->nRow; pTableBlockInfo->totalRows += numOfRows; if (numOfRows > pTableBlockInfo->maxRows) { pTableBlockInfo->maxRows = numOfRows; } if (numOfRows < pTableBlockInfo->minRows) { pTableBlockInfo->minRows = numOfRows; } if (numOfRows < defaultRows) { pTableBlockInfo->numOfSmallBlocks += 1; } pTableBlockInfo->totalSize += pBlock->aSubBlock[0].szBlock; int32_t bucketIndex = getBucketIndex(pTableBlockInfo->defMinRows, bucketRange, numOfRows, numOfBucket); pTableBlockInfo->blockRowsHisto[bucketIndex]++; hasNext = blockIteratorNext(&pStatus->blockIter, pReader->idStr); } else { code = initForFirstBlockInFile(pReader, pBlockIter); if ((code != TSDB_CODE_SUCCESS) || (pStatus->loadFromFile == false)) { break; } pTableBlockInfo->numOfBlocks += pBlockIter->numOfBlocks; hasNext = (pBlockIter->numOfBlocks > 0); } // tsdbDebug("%p %d blocks found in file for %d table(s), fid:%d, %s", pReader, numOfBlocks, numOfTables, // pReader->pFileGroup->fid, pReader->idStr); } tsdbReleaseReader(pReader); return code; } int64_t tsdbGetNumOfRowsInMemTable(STsdbReader* pReader) { int64_t rows = 0; SReaderStatus* pStatus = &pReader->status; tsdbAcquireReader(pReader); if (pReader->suspended) { tsdbReaderResume(pReader); } pStatus->pTableIter = taosHashIterate(pStatus->pTableMap, NULL); while (pStatus->pTableIter != NULL) { STableBlockScanInfo* pBlockScanInfo = *(STableBlockScanInfo**)pStatus->pTableIter; STbData* d = NULL; if (pReader->pReadSnap->pMem != NULL) { d = tsdbGetTbDataFromMemTable(pReader->pReadSnap->pMem, pReader->suid, pBlockScanInfo->uid); if (d != NULL) { rows += tsdbGetNRowsInTbData(d); } } STbData* di = NULL; if (pReader->pReadSnap->pIMem != NULL) { di = tsdbGetTbDataFromMemTable(pReader->pReadSnap->pIMem, pReader->suid, pBlockScanInfo->uid); if (di != NULL) { rows += tsdbGetNRowsInTbData(di); } } // current table is exhausted, let's try the next table pStatus->pTableIter = taosHashIterate(pStatus->pTableMap, pStatus->pTableIter); } tsdbReleaseReader(pReader); return rows; } int32_t tsdbGetTableSchema(SVnode* pVnode, int64_t uid, STSchema** pSchema, int64_t* suid) { int32_t sversion = 1; SMetaReader mr = {0}; metaReaderInit(&mr, pVnode->pMeta, 0); int32_t code = metaGetTableEntryByUidCache(&mr, uid); if (code != TSDB_CODE_SUCCESS) { terrno = TSDB_CODE_TDB_INVALID_TABLE_ID; metaReaderClear(&mr); return terrno; } *suid = 0; if (mr.me.type == TSDB_CHILD_TABLE) { tDecoderClear(&mr.coder); *suid = mr.me.ctbEntry.suid; code = metaGetTableEntryByUidCache(&mr, *suid); if (code != TSDB_CODE_SUCCESS) { terrno = TSDB_CODE_TDB_INVALID_TABLE_ID; metaReaderClear(&mr); return terrno; } sversion = mr.me.stbEntry.schemaRow.version; } else if (mr.me.type == TSDB_NORMAL_TABLE) { sversion = mr.me.ntbEntry.schemaRow.version; } else { terrno = TSDB_CODE_INVALID_PARA; metaReaderClear(&mr); return terrno; } metaReaderClear(&mr); *pSchema = metaGetTbTSchema(pVnode->pMeta, uid, sversion, 1); return TSDB_CODE_SUCCESS; } int32_t tsdbTakeReadSnap(STsdbReader* pReader, _query_reseek_func_t reseek, STsdbReadSnap** ppSnap) { int32_t code = 0; STsdb* pTsdb = pReader->pTsdb; SVersionRange* pRange = &pReader->verRange; // alloc STsdbReadSnap* pSnap = (STsdbReadSnap*)taosMemoryCalloc(1, sizeof(*pSnap)); if (pSnap == NULL) { code = TSDB_CODE_OUT_OF_MEMORY; goto _exit; } // lock taosThreadRwlockRdlock(&pTsdb->rwLock); // take snapshot if (pTsdb->mem && (pRange->minVer <= pTsdb->mem->maxVer && pRange->maxVer >= pTsdb->mem->minVer)) { pSnap->pMem = pTsdb->mem; pSnap->pNode = taosMemoryMalloc(sizeof(*pSnap->pNode)); if (pSnap->pNode == NULL) { taosThreadRwlockUnlock(&pTsdb->rwLock); code = TSDB_CODE_OUT_OF_MEMORY; goto _exit; } pSnap->pNode->pQHandle = pReader; pSnap->pNode->reseek = reseek; tsdbRefMemTable(pTsdb->mem, pSnap->pNode); } if (pTsdb->imem && (pRange->minVer <= pTsdb->imem->maxVer && pRange->maxVer >= pTsdb->imem->minVer)) { pSnap->pIMem = pTsdb->imem; pSnap->pINode = taosMemoryMalloc(sizeof(*pSnap->pINode)); if (pSnap->pINode == NULL) { taosThreadRwlockUnlock(&pTsdb->rwLock); code = TSDB_CODE_OUT_OF_MEMORY; goto _exit; } pSnap->pINode->pQHandle = pReader; pSnap->pINode->reseek = reseek; tsdbRefMemTable(pTsdb->imem, pSnap->pINode); } // fs code = tsdbFSRef(pTsdb, &pSnap->fs); if (code) { taosThreadRwlockUnlock(&pTsdb->rwLock); goto _exit; } // unlock taosThreadRwlockUnlock(&pTsdb->rwLock); tsdbTrace("vgId:%d, take read snapshot", TD_VID(pTsdb->pVnode)); _exit: if (code) { *ppSnap = NULL; if (pSnap) { if (pSnap->pNode) taosMemoryFree(pSnap->pNode); if (pSnap->pINode) taosMemoryFree(pSnap->pINode); taosMemoryFree(pSnap); } } else { *ppSnap = pSnap; } return code; } void tsdbUntakeReadSnap(STsdbReader* pReader, STsdbReadSnap* pSnap, bool proactive) { STsdb* pTsdb = pReader->pTsdb; if (pSnap) { if (pSnap->pMem) { tsdbUnrefMemTable(pSnap->pMem, pSnap->pNode, proactive); } if (pSnap->pIMem) { tsdbUnrefMemTable(pSnap->pIMem, pSnap->pINode, proactive); } tsdbFSUnref(pTsdb, &pSnap->fs); if (pSnap->pNode) taosMemoryFree(pSnap->pNode); if (pSnap->pINode) taosMemoryFree(pSnap->pINode); taosMemoryFree(pSnap); } tsdbTrace("vgId:%d, untake read snapshot", TD_VID(pTsdb->pVnode)); } // if failed, do nothing void tsdbReaderSetId(STsdbReader* pReader, const char* idstr) { taosMemoryFreeClear(pReader->idStr); pReader->idStr = taosStrdup(idstr); }