/* * 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" #include "tsdbDataFileRW.h" #include "tsdbFS2.h" #include "tsdbMerge.h" #include "tsdbReadUtil.h" #include "tsdbUtil2.h" #include "tsimplehash.h" #define ASCENDING_TRAVERSE(o) (o == TSDB_ORDER_ASC) #define getCurrentKeyInLastBlock(_r) ((_r)->currentKey) static SFileDataBlockInfo* getCurrentBlockInfo(SDataBlockIter* pBlockIter); static int32_t 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); 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, STsdbReader* pReader); static int32_t doAppendRowFromTSRow(SSDataBlock* pBlock, STsdbReader* pReader, SRow* pTSRow, STableBlockScanInfo* pScanInfo); 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, int64_t key, int64_t ver, int32_t order, SVersionRange* pVerRange); static int32_t doMergeMemTableMultiRows(TSDBROW* pRow, uint64_t uid, SIterInfo* pIter, SArray* pDelList, TSDBROW* pResRow, 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, int32_t order, SCostSummary* pCost); 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 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 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 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, TFileSetArray* pFileSetArray, STsdbReader* pReader) { size_t numOfFileset = TARRAY2_SIZE(pFileSetArray); pIter->index = ASCENDING_TRAVERSE(pReader->info.order) ? -1 : numOfFileset; pIter->order = pReader->info.order; pIter->pFilesetList = pFileSetArray; 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->info.order; pLReader->window = pReader->info.window; pLReader->verRange = pReader->info.verRange; pLReader->uid = 0; tMergeTreeClose(&pLReader->mergeTree); 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; int32_t code = 0; pIter->index += step; if ((asc && pIter->index >= pIter->numOfFiles) || ((!asc) && pIter->index < 0)) { *hasNext = false; return TSDB_CODE_SUCCESS; } SCostSummary* pCost = &pReader->cost; pIter->pLastBlockReader->uid = 0; tMergeTreeClose(&pIter->pLastBlockReader->mergeTree); pReader->status.pLDataIterArray = destroySttBlockReader(pReader->status.pLDataIterArray, &pCost->sttCost); pReader->status.pLDataIterArray = taosArrayInit(4, POINTER_BYTES); // check file the time range of coverage STimeWindow win = {0}; while (1) { if (pReader->pFileReader != NULL) { tsdbDataFileReaderClose(&pReader->pFileReader); } pReader->status.pCurrentFileset = pIter->pFilesetList->data[pIter->index]; STFileObj** pFileObj = pReader->status.pCurrentFileset->farr; if (pFileObj[0] != NULL || pFileObj[3] != NULL) { SDataFileReaderConfig conf = {.tsdb = pReader->pTsdb, .szPage = pReader->pTsdb->pVnode->config.tsdbPageSize}; const char* filesName[4] = {0}; if (pFileObj[0] != NULL) { conf.files[0].file = *pFileObj[0]->f; conf.files[0].exist = true; filesName[0] = pFileObj[0]->fname; conf.files[1].file = *pFileObj[1]->f; conf.files[1].exist = true; filesName[1] = pFileObj[1]->fname; conf.files[2].file = *pFileObj[2]->f; conf.files[2].exist = true; filesName[2] = pFileObj[2]->fname; } if (pFileObj[3] != NULL) { conf.files[3].exist = true; conf.files[3].file = *pFileObj[3]->f; filesName[3] = pFileObj[3]->fname; } code = tsdbDataFileReaderOpen(filesName, &conf, &pReader->pFileReader); 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->info.window.ekey) || (!asc && win.ekey < pReader->info.window.skey)) { tsdbDebug("%p remain files are not qualified for qrange:%" PRId64 "-%" PRId64 ", ignore, %s", pReader, pReader->info.window.skey, pReader->info.window.ekey, pReader->idStr); *hasNext = false; return TSDB_CODE_SUCCESS; } if ((asc && (win.ekey < pReader->info.window.skey)) || ((!asc) && (win.skey > pReader->info.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->info.window.skey, pReader->info.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 tsdbReleaseDataBlock2(STsdbReader* pReader) { SReaderStatus* pStatus = &pReader->status; if (!pStatus->composedDataBlock) { tsdbReleaseReader(pReader); } } static int32_t initResBlockInfo(SResultBlockInfo* pResBlockInfo, int64_t capacity, SSDataBlock* pResBlock, SQueryTableDataCond* pCond) { pResBlockInfo->capacity = capacity; pResBlockInfo->pResBlock = pResBlock; terrno = 0; if (pResBlockInfo->pResBlock == NULL) { pResBlockInfo->freeBlock = true; pResBlockInfo->pResBlock = createResBlock(pCond, pResBlockInfo->capacity); } else { pResBlockInfo->freeBlock = false; } return terrno; } static int32_t tsdbReaderCreate(SVnode* pVnode, SQueryTableDataCond* pCond, void** 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->info.suid = pCond->suid; pReader->info.order = pCond->order; pReader->idStr = (idstr != NULL) ? taosStrdup(idstr) : NULL; pReader->info.verRange = getQueryVerRange(pVnode, pCond, level); pReader->type = pCond->type; pReader->info.window = updateQueryTimeWindow(pReader->pTsdb, &pCond->twindows); pReader->blockInfoBuf.numPerBucket = 1000; // 1000 tables per bucket code = initResBlockInfo(&pReader->resBlockInfo, capacity, pResBlock, pCond); if (code != TSDB_CODE_SUCCESS) { 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->tsColAgg.colId = PRIMARYKEY_TIMESTAMP_COL_ID; setColumnIdSlotList(pSup, pCond->colList, pCond->pSlotList, pCond->numOfCols); code = tBlockDataCreate(&pReader->status.fileBlockData); if (code != TSDB_CODE_SUCCESS) { terrno = code; goto _end; } if (pReader->suppInfo.colId[0] != PRIMARYKEY_TIMESTAMP_COL_ID) { tsdbError("the first column isn't primary timestamp, %d, %s", pReader->suppInfo.colId[0], pReader->idStr); code = TSDB_CODE_INVALID_PARA; goto _end; } pReader->status.pPrimaryTsCol = taosArrayGet(pReader->resBlockInfo.pResBlock->pDataBlock, pSup->slotId[0]); int32_t type = pReader->status.pPrimaryTsCol->info.type; if (type != TSDB_DATA_TYPE_TIMESTAMP) { tsdbError("the first column isn't primary timestamp in result block, actual: %s, %s", tDataTypes[type].name, pReader->idStr); code = TSDB_CODE_INVALID_PARA; goto _end; } tsdbInitReaderLock(pReader); *ppReader = pReader; return code; _end: tsdbReaderClose2(pReader); *ppReader = NULL; return code; } static int32_t doLoadBlockIndex(STsdbReader* pReader, SDataFileReader* pFileReader, SArray* pIndexList) { int64_t st = taosGetTimestampUs(); int32_t numOfTables = tSimpleHashGetSize(pReader->status.pTableMap); if (pFileReader == NULL) { return TSDB_CODE_SUCCESS; } const TBrinBlkArray* pBlkArray = NULL; int32_t code = tsdbDataFileReadBrinBlk(pFileReader, &pBlkArray); #if 0 LRUHandle* handle = NULL; int32_t code = tsdbCacheGetBlockIdx(pFileReader->pTsdb->biCache, pFileReader, &handle); if (code != TSDB_CODE_SUCCESS || handle == NULL) { goto _end; } 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; } #endif // todo binary search to the start position int64_t et1 = taosGetTimestampUs(); SBrinBlk* pBrinBlk = NULL; STableUidList* pList = &pReader->status.uidList; int32_t i = 0; while (i < TARRAY2_SIZE(pBlkArray)) { pBrinBlk = &pBlkArray->data[i]; if (pBrinBlk->maxTbid.suid < pReader->info.suid) { i += 1; continue; } if (pBrinBlk->minTbid.suid > pReader->info.suid) { // not include the queried table/super table, quit the loop break; } ASSERT(pBrinBlk->minTbid.suid <= pReader->info.suid && pBrinBlk->maxTbid.suid >= pReader->info.suid); if (pBrinBlk->maxTbid.suid == pReader->info.suid && pBrinBlk->maxTbid.uid < pList->tableUidList[0]) { i += 1; continue; } if (pBrinBlk->minTbid.suid == pReader->info.suid && pBrinBlk->minTbid.uid > pList->tableUidList[numOfTables - 1]) { break; } taosArrayPush(pIndexList, pBrinBlk); i += 1; } int64_t et2 = taosGetTimestampUs(); tsdbDebug("load block index for %d/%d tables completed, elapsed time:%.2f ms, set BrinBlk:%.2f ms, size:%.2f Kb %s", numOfTables, (int32_t)pBlkArray->size, (et1 - st) / 1000.0, (et2 - et1) / 1000.0, pBlkArray->size * sizeof(SBrinBlk) / 1024.0, pReader->idStr); pReader->cost.headFileLoadTime += (et1 - st) / 1000.0; // tsdbBICacheRelease(pFileReader->pTsdb->biCache, handle); return code; } static int32_t doLoadFileBlock(STsdbReader* pReader, SArray* pIndexList, SBlockNumber* pBlockNum, SArray* pTableScanInfoList) { size_t sizeInDisk = 0; int64_t st = taosGetTimestampUs(); // clear info for the new file cleanupInfoFoxNextFileset(pReader->status.pTableMap); int32_t k = 0; int32_t numOfTables = tSimpleHashGetSize(pReader->status.pTableMap); int32_t step = ASCENDING_TRAVERSE(pReader->info.order) ? 1 : -1; STimeWindow w = pReader->info.window; SBrinRecord* pRecord = NULL; SBrinRecordIter iter = {0}; initBrinRecordIter(&iter, pReader->pFileReader, pIndexList); while (((pRecord = getNextBrinRecord(&iter)) != NULL)) { if (pRecord->suid > pReader->info.suid) { break; } uint64_t uid = pReader->status.uidList.tableUidList[k]; if (pRecord->suid < pReader->info.suid) { continue; } if (uid < pRecord->uid) { // forward the table uid index while (k < numOfTables && pReader->status.uidList.tableUidList[k] < pRecord->uid) { k += 1; } if (k >= numOfTables) { break; } uid = pReader->status.uidList.tableUidList[k]; } if (pRecord->uid < uid) { continue; } ASSERT(pRecord->suid == pReader->info.suid && uid == pRecord->uid); STableBlockScanInfo* pScanInfo = getTableBlockScanInfo(pReader->status.pTableMap, uid, pReader->idStr); if (ASCENDING_TRAVERSE(pReader->info.order)) { w.skey = pScanInfo->lastKey + step; } else { w.ekey = pScanInfo->lastKey + step; } if (isEmptyQueryTimeWindow(&w)) { k += 1; continue; } // 1. time range check if (pRecord->firstKey > w.ekey || pRecord->lastKey < w.skey) { continue; } // 2. version range check if (pRecord->minVer > pReader->info.verRange.maxVer || pRecord->maxVer < pReader->info.verRange.minVer) { continue; } if (pScanInfo->pBlockList == NULL) { pScanInfo->pBlockList = taosArrayInit(4, sizeof(SBrinRecord)); } void* p1 = taosArrayPush(pScanInfo->pBlockList, pRecord); if (p1 == NULL) { return TSDB_CODE_OUT_OF_MEMORY; } pBlockNum->numOfBlocks += 1; if (taosArrayGetSize(pTableScanInfoList) == 0) { taosArrayPush(pTableScanInfoList, &pScanInfo); } else { STableBlockScanInfo** p = taosArrayGetLast(pTableScanInfoList); if ((*p)->uid != uid) { taosArrayPush(pTableScanInfoList, &pScanInfo); } } } clearBrinBlockIter(&iter); pBlockNum->numOfLastFiles = pReader->status.pCurrentFileset->lvlArr->size; int32_t total = pBlockNum->numOfLastFiles + pBlockNum->numOfBlocks; double el = (taosGetTimestampUs() - st) / 1000.0; tsdbDebug( "load block of %d tables completed, blocks:%d in %d tables, last-files:%d, block-info-size:%.2f Kb, elapsed " "time:%.2f ms %s", numOfTables, pBlockNum->numOfBlocks, (int32_t)taosArrayGetSize(pTableScanInfoList), 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 int32_t 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); if (pColVal->value.nData > pColInfoData->info.bytes) { tsdbWarn("column cid:%d actual data len %d is bigger than schema len %d", pColVal->cid, pColVal->value.nData, pColInfoData->info.bytes); return TSDB_CODE_TDB_INVALID_TABLE_SCHEMA_VER; } 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)); } return TSDB_CODE_SUCCESS; } static SFileDataBlockInfo* getCurrentBlockInfo(SDataBlockIter* pBlockIter) { size_t num = TARRAY_SIZE(pBlockIter->blockList); if (num == 0) { ASSERT(pBlockIter->numOfBlocks == num); return NULL; } SFileDataBlockInfo* pBlockInfo = taosArrayGet(pBlockIter->blockList, pBlockIter->index); return pBlockInfo; } 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, SBrinRecord* pRecord, int32_t pos) { // NOTE: reverse the order to find the end position in data block int32_t endPos = -1; bool asc = ASCENDING_TRAVERSE(pReader->info.order); if (asc && pReader->info.window.ekey >= pRecord->lastKey) { endPos = pRecord->numRow - 1; } else if (!asc && pReader->info.window.skey <= pRecord->firstKey) { endPos = 0; } else { int64_t key = asc ? pReader->info.window.ekey : pReader->info.window.skey; endPos = doBinarySearchKey(pBlockData->aTSKEY, pRecord->numRow, pos, key, pReader->info.order); } if ((pReader->info.verRange.maxVer >= pRecord->minVer && pReader->info.verRange.maxVer < pRecord->maxVer) || (pReader->info.verRange.minVer <= pRecord->maxVer && pReader->info.verRange.minVer > pRecord->minVer)) { int32_t i = endPos; if (asc) { for (; i >= 0; --i) { if (pBlockData->aVersion[i] <= pReader->info.verRange.maxVer) { break; } } } else { for (; i < pRecord->numRow; ++i) { if (pBlockData->aVersion[i] >= pReader->info.verRange.minVer) { break; } } } endPos = i; } 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); SSDataBlock* pResBlock = pReader->resBlockInfo.pResBlock; int32_t numOfOutputCols = pSupInfo->numOfCols; int32_t code = TSDB_CODE_SUCCESS; SColVal cv = {0}; int64_t st = taosGetTimestampUs(); bool asc = ASCENDING_TRAVERSE(pReader->info.order); int32_t step = asc ? 1 : -1; SBrinRecord* pRecord = &pBlockInfo->record; // 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; } // row index of dump info remain the initial position, let's find the appropriate start position. if ((pDumpInfo->rowIndex == 0 && asc) || (pDumpInfo->rowIndex == pRecord->numRow - 1 && (!asc))) { if (asc && pReader->info.window.skey <= pRecord->firstKey && pReader->info.verRange.minVer <= pRecord->minVer) { // pDumpInfo->rowIndex = 0; } else if (!asc && pReader->info.window.ekey >= pRecord->lastKey && pReader->info.verRange.maxVer >= pRecord->maxVer) { // pDumpInfo->rowIndex = pRecord->numRow - 1; } else { // find the appropriate the start position in current block, and set it to be the current rowIndex int32_t pos = asc ? pRecord->numRow - 1 : 0; int32_t order = asc ? TSDB_ORDER_DESC : TSDB_ORDER_ASC; int64_t key = asc ? pReader->info.window.skey : pReader->info.window.ekey; pDumpInfo->rowIndex = doBinarySearchKey(pBlockData->aTSKEY, pRecord->numRow, 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, pRecord->firstKey, pRecord->lastKey, pRecord->minVer, pRecord->maxVer, pReader->idStr); return TSDB_CODE_INVALID_PARA; } ASSERT(pReader->info.verRange.minVer <= pRecord->maxVer && pReader->info.verRange.maxVer >= pRecord->minVer); // find the appropriate start position that satisfies the version requirement. if ((pReader->info.verRange.maxVer >= pRecord->minVer && pReader->info.verRange.maxVer < pRecord->maxVer) || (pReader->info.verRange.minVer <= pRecord->maxVer && pReader->info.verRange.minVer > pRecord->minVer)) { int32_t i = pDumpInfo->rowIndex; if (asc) { for (; i < pRecord->numRow; ++i) { if (pBlockData->aVersion[i] >= pReader->info.verRange.minVer) { break; } } } else { for (; i >= 0; --i) { if (pBlockData->aVersion[i] <= pReader->info.verRange.maxVer) { break; } } } pDumpInfo->rowIndex = i; } } } // time window check int32_t endIndex = getEndPosInDataBlock(pReader, pBlockData, pRecord, pDumpInfo->rowIndex); if (endIndex == -1) { setBlockAllDumped(pDumpInfo, pReader->info.window.ekey, pReader->info.order); return TSDB_CODE_SUCCESS; } endIndex += step; int32_t dumpedRows = asc ? (endIndex - pDumpInfo->rowIndex) : (pDumpInfo->rowIndex - endIndex); if (dumpedRows > pReader->resBlockInfo.capacity) { // output buffer check dumpedRows = pReader->resBlockInfo.capacity; } else if (dumpedRows <= 0) { // no qualified rows in current data block, abort directly. setBlockAllDumped(pDumpInfo, pReader->info.window.ekey, pReader->info.order); return TSDB_CODE_SUCCESS; } 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); code = doCopyColVal(pColData, rowIndex++, i, &cv, pSupInfo); if (code) { return code; } } } } 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 < pRecord->numRow) { int64_t ts = pBlockData->aTSKEY[pDumpInfo->rowIndex]; if (outOfTimeWindow(ts, &pReader->info.window)) { // the remain data has out of query time window, ignore current block setBlockAllDumped(pDumpInfo, ts, pReader->info.order); } } else { int64_t ts = asc ? pRecord->lastKey : pRecord->firstKey; setBlockAllDumped(pDumpInfo, ts, pReader->info.order); } double elapsedTime = (taosGetTimestampUs() - st) / 1000.0; pReader->cost.blockLoadTime += elapsedTime; int32_t unDumpedRows = asc ? pRecord->numRow - 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, pRecord->firstKey, pRecord->lastKey, dumpedRows, unDumpedRows, pRecord->minVer, pRecord->maxVer, pBlockInfo->uid, elapsedTime, pReader->idStr); return TSDB_CODE_SUCCESS; } static FORCE_INLINE STSchema* getTableSchemaImpl(STsdbReader* pReader, uint64_t uid) { ASSERT(pReader->info.pSchema == NULL); int32_t code = metaGetTbTSchemaEx(pReader->pTsdb->pVnode->pMeta, pReader->info.suid, uid, -1, &pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS || pReader->info.pSchema == NULL) { terrno = code; tsdbError("failed to get table schema, uid:%" PRIu64 ", it may have been dropped, ver:-1, %s", uid, pReader->idStr); return NULL; } code = tsdbRowMergerInit(&pReader->status.merger, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { terrno = code; tsdbError("failed to init merger, code:%s, %s", tstrerror(code), pReader->idStr); return NULL; } return pReader->info.pSchema; } static int32_t doLoadFileBlockData(STsdbReader* pReader, SDataBlockIter* pBlockIter, SBlockData* pBlockData, uint64_t uid) { int32_t code = 0; STSchema* pSchema = pReader->info.pSchema; int64_t st = taosGetTimestampUs(); tBlockDataReset(pBlockData); if (pReader->info.pSchema == NULL) { pSchema = getTableSchemaImpl(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; SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter); SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; SBrinRecord* pRecord = &pBlockInfo->record; code = tsdbDataFileReadBlockDataByColumn(pReader->pFileReader, pRecord, pBlockData, pSchema, &pSup->colId[1], pSup->numOfCols - 1); 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, pBlockInfo->record.firstKey, pBlockInfo->record.lastKey, pBlockInfo->record.numRow, 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, pRecord->firstKey, pRecord->lastKey, pRecord->numRow, pRecord->minVer, pRecord->maxVer, elapsedTime, pReader->idStr); pReader->cost.blockLoadTime += elapsedTime; pDumpInfo->allDumped = false; return TSDB_CODE_SUCCESS; } /** * This is an two rectangles overlap cases. */ static int32_t dataBlockPartiallyRequired(STimeWindow* pWindow, SVersionRange* pVerRange, SFileDataBlockInfo* pBlock) { return (pWindow->ekey < pBlock->record.lastKey && pWindow->ekey >= pBlock->record.firstKey) || (pWindow->skey > pBlock->record.firstKey && pWindow->skey <= pBlock->record.lastKey) || (pVerRange->minVer > pBlock->record.minVer && pVerRange->minVer <= pBlock->record.maxVer) || (pVerRange->maxVer < pBlock->record.maxVer && pVerRange->maxVer >= pBlock->record.minVer); } static bool getNeighborBlockOfSameTable(SFileDataBlockInfo* pBlockInfo, STableBlockScanInfo* pTableBlockScanInfo, int32_t* nextIndex, int32_t order, SBrinRecord* pRecord) { 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); SBrinRecord* p = taosArrayGet(pTableBlockScanInfo->pBlockList, pBlockInfo->tbBlockIdx + step); memcpy(pRecord, p, sizeof(SBrinRecord)); *nextIndex = pBlockInfo->tbBlockIdx + step; // 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); } return TSDB_CODE_SUCCESS; } // todo: this attribute could be acquired during extractin the global ordered block list. static bool overlapWithNeighborBlock2(SFileDataBlockInfo* pBlock, SBrinRecord* pRec, int32_t order) { // it is the last block in current file, no chance to overlap with neighbor blocks. if (ASCENDING_TRAVERSE(order)) { return pBlock->record.lastKey == pRec->firstKey; } else { return pBlock->record.firstKey == pRec->lastKey; } } static bool bufferDataInFileBlockGap(int32_t order, TSDBKEY key, SFileDataBlockInfo* pBlock) { bool ascScan = ASCENDING_TRAVERSE(order); return (ascScan && (key.ts != TSKEY_INITIAL_VAL && key.ts <= pBlock->record.firstKey)) || (!ascScan && (key.ts != TSKEY_INITIAL_VAL && key.ts >= pBlock->record.lastKey)); } static bool keyOverlapFileBlock(TSDBKEY key, SFileDataBlockInfo* pBlock, SVersionRange* pVerRange) { return (key.ts >= pBlock->record.firstKey && key.ts <= pBlock->record.lastKey) && (pBlock->record.maxVer >= pVerRange->minVer) && (pBlock->record.minVer <= pVerRange->maxVer); } static bool doCheckforDatablockOverlap(STableBlockScanInfo* pBlockScanInfo, const SBrinRecord* pRecord, 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 >= pRecord->firstKey && p->ts <= pRecord->lastKey) { if (p->version >= pRecord->minVer) { return true; } } else if (p->ts < pRecord->firstKey) { // p->ts < pBlock->minKey.ts if (p->version >= pRecord->minVer) { if (i < num - 1) { TSDBKEY* pnext = taosArrayGet(pBlockScanInfo->delSkyline, i + 1); if (pnext->ts >= pRecord->firstKey) { 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 SBrinRecord* pRecord, int32_t order) { if (pBlockScanInfo->delSkyline == NULL || (taosArrayGetSize(pBlockScanInfo->delSkyline) == 0)) { return false; } // ts is not overlap TSDBKEY* pFirst = taosArrayGet(pBlockScanInfo->delSkyline, 0); TSDBKEY* pLast = taosArrayGetLast(pBlockScanInfo->delSkyline); if (pRecord->firstKey > pLast->ts || pRecord->lastKey < pFirst->ts) { return false; } // version is not overlap if (ASCENDING_TRAVERSE(order)) { return doCheckforDatablockOverlap(pBlockScanInfo, pRecord, pBlockScanInfo->fileDelIndex); } else { int32_t index = pBlockScanInfo->fileDelIndex; while (1) { TSDBKEY* p = taosArrayGet(pBlockScanInfo->delSkyline, index); if (p->ts > pRecord->firstKey && index > 0) { index -= 1; } else { // find the first point that is smaller than the minKey.ts of dataBlock. if (p->ts == pRecord->firstKey && p->version < pRecord->maxVer && index > 0) { index -= 1; } break; } } return doCheckforDatablockOverlap(pBlockScanInfo, pRecord, 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, STableBlockScanInfo* pScanInfo, TSDBKEY keyInBuf, SLastBlockReader* pLastBlockReader, STsdbReader* pReader) { int32_t neighborIndex = 0; SBrinRecord rec = {0}; bool hasNeighbor = getNeighborBlockOfSameTable(pBlockInfo, pScanInfo, &neighborIndex, pReader->info.order, &rec); // overlap with neighbor if (hasNeighbor) { pInfo->overlapWithNeighborBlock = overlapWithNeighborBlock2(pBlockInfo, &rec, pReader->info.order); } // has duplicated ts of different version in this block pInfo->hasDupTs = (pBlockInfo->record.numRow > pBlockInfo->record.count); pInfo->overlapWithDelInfo = overlapWithDelSkyline(pScanInfo, &pBlockInfo->record, pReader->info.order); if (hasDataInLastBlock(pLastBlockReader)) { int64_t tsLast = getCurrentKeyInLastBlock(pLastBlockReader); pInfo->overlapWithLastBlock = !(pBlockInfo->record.lastKey < tsLast || pBlockInfo->record.firstKey > tsLast); } pInfo->moreThanCapcity = pBlockInfo->record.numRow > pReader->resBlockInfo.capacity; pInfo->partiallyRequired = dataBlockPartiallyRequired(&pReader->info.window, &pReader->info.verRange, pBlockInfo); pInfo->overlapWithKeyInBuf = keyOverlapFileBlock(keyInBuf, pBlockInfo, &pReader->info.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, STableBlockScanInfo* pScanInfo, TSDBKEY keyInBuf, SLastBlockReader* pLastBlockReader) { SDataBlockToLoadInfo info = {0}; getBlockToLoadInfo(&info, pBlockInfo, 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, STableBlockScanInfo* pScanInfo, TSDBKEY keyInBuf, SLastBlockReader* pLastBlockReader) { SDataBlockToLoadInfo info = {0}; getBlockToLoadInfo(&info, pBlockInfo, 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->resBlockInfo.pResBlock; int64_t st = taosGetTimestampUs(); int32_t code = buildDataBlockFromBufImpl(pBlockScanInfo, endKey, pReader->resBlockInfo.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:%" PRId64 ", 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, bool* copied) { // opt version // 1. it is not a border point // 2. the direct next point is not an duplicated timestamp int32_t code = TSDB_CODE_SUCCESS; *copied = false; bool asc = (pReader->info.order == TSDB_ORDER_ASC); if ((pDumpInfo->rowIndex < pDumpInfo->totalRows - 1 && asc) || (pDumpInfo->rowIndex > 0 && (!asc))) { int32_t step = pReader->info.order == TSDB_ORDER_ASC ? 1 : -1; int64_t nextKey = pBlockData->aTSKEY[pDumpInfo->rowIndex + step]; if (nextKey != key) { // merge is not needed code = doAppendRowFromFileBlock(pReader->resBlockInfo.pResBlock, pReader, pBlockData, pDumpInfo->rowIndex); if (code) { return code; } pDumpInfo->rowIndex += step; *copied = true; } } return code; } 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* pRow = tMergeTreeGetRow(&pLastBlockReader->mergeTree); int64_t key = pRow->pBlockData->aTSKEY[pRow->iRow]; int64_t ver = pRow->pBlockData->aVersion[pRow->iRow]; pLastBlockReader->currentKey = key; pScanInfo->lastKeyInStt = key; if (!hasBeenDropped(pScanInfo->delSkyline, &pScanInfo->sttBlockDelIndex, key, ver, pLastBlockReader->order, pVerRange)) { return true; } } } static bool tryCopyDistinctRowFromSttBlock(TSDBROW* fRow, SLastBlockReader* pLastBlockReader, STableBlockScanInfo* pScanInfo, int64_t ts, STsdbReader* pReader, bool* copied) { int32_t code = TSDB_CODE_SUCCESS; *copied = false; bool hasVal = nextRowFromLastBlocks(pLastBlockReader, pScanInfo, &pReader->info.verRange); if (hasVal) { int64_t next1 = getCurrentKeyInLastBlock(pLastBlockReader); if (next1 != ts) { code = doAppendRowFromFileBlock(pReader->resBlockInfo.pResBlock, pReader, fRow->pBlockData, fRow->iRow); if (code) { return code; } *copied = true; return code; } } else { code = doAppendRowFromFileBlock(pReader->resBlockInfo.pResBlock, pReader, fRow->pBlockData, fRow->iRow); if (code) { return code; } *copied = true; return code; } return code; } static FORCE_INLINE STSchema* doGetSchemaForTSRow(int32_t sversion, STsdbReader* pReader, uint64_t uid) { // always set the newest schema version in pReader->info.pSchema if (pReader->info.pSchema == NULL) { STSchema* ps = getTableSchemaImpl(pReader, uid); if (ps == NULL) { return NULL; } } if (pReader->info.pSchema && sversion == pReader->info.pSchema->version) { return pReader->info.pSchema; } void** p = tSimpleHashGet(pReader->pSchemaMap, &sversion, sizeof(sversion)); if (p != NULL) { return *(STSchema**)p; } STSchema* ptr = NULL; int32_t code = metaGetTbTSchemaEx(pReader->pTsdb->pVnode->pMeta, pReader->info.suid, uid, sversion, &ptr); if (code != TSDB_CODE_SUCCESS) { terrno = code; return NULL; } else { code = tSimpleHashPut(pReader->pSchemaMap, &sversion, sizeof(sversion), &ptr, POINTER_BYTES); if (code != TSDB_CODE_SUCCESS) { terrno = code; return NULL; } return ptr; } } static int32_t doMergeBufAndFileRows(STsdbReader* pReader, STableBlockScanInfo* pBlockScanInfo, TSDBROW* pRow, SIterInfo* pIter, int64_t key, SLastBlockReader* pLastBlockReader) { SRowMerger* pMerger = &pReader->status.merger; 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); // merge is not initialized yet, due to the fact that the pReader->info.pSchema is not initialized if (pMerger->pArray == NULL) { ASSERT(pReader->info.pSchema == NULL); STSchema* ps = getTableSchemaImpl(pReader, pBlockScanInfo->uid); if (ps == NULL) { return terrno; } } int64_t minKey = 0; if (pReader->info.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; } } // todo remove init bool init = false; // ASC: file block ---> last block -----> imem -----> mem // DESC: mem -----> imem -----> last block -----> file block if (pReader->info.order == TSDB_ORDER_ASC) { if (minKey == key) { init = true; int32_t code = tsdbRowMergerAdd(pMerger, &fRow, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader); } if (minKey == tsLast) { TSDBROW* fRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); if (init) { tsdbRowMergerAdd(pMerger, fRow1, NULL); } else { init = true; int32_t code = tsdbRowMergerAdd(pMerger, fRow1, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLast, pMerger, &pReader->info.verRange, pReader->idStr); } if (minKey == k.ts) { STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); if (pSchema == NULL) { return terrno; } if (init) { tsdbRowMergerAdd(pMerger, pRow, pSchema); } else { init = true; int32_t code = tsdbRowMergerAdd(pMerger, pRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } int32_t code = doMergeRowsInBuf(pIter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } } else { if (minKey == k.ts) { init = true; STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); if (pSchema == NULL) { return terrno; } int32_t code = tsdbRowMergerAdd(pMerger, pRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } code = doMergeRowsInBuf(pIter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, pReader); if (code != TSDB_CODE_SUCCESS || pMerger->pTSchema == NULL) { return code; } } if (minKey == tsLast) { TSDBROW* fRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); if (init) { tsdbRowMergerAdd(pMerger, fRow1, NULL); } else { init = true; int32_t code = tsdbRowMergerAdd(pMerger, fRow1, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLast, pMerger, &pReader->info.verRange, pReader->idStr); } if (minKey == key) { if (init) { tsdbRowMergerAdd(pMerger, &fRow, NULL); } else { init = true; int32_t code = tsdbRowMergerAdd(pMerger, &fRow, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader); } } int32_t code = tsdbRowMergerGetRow(pMerger, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } code = doAppendRowFromTSRow(pReader->resBlockInfo.pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(pMerger); return code; } static int32_t doMergeFileBlockAndLastBlock(SLastBlockReader* pLastBlockReader, STsdbReader* pReader, STableBlockScanInfo* pBlockScanInfo, SBlockData* pBlockData, bool mergeBlockData) { SRowMerger* pMerger = &pReader->status.merger; SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; int64_t tsLastBlock = getCurrentKeyInLastBlock(pLastBlockReader); bool copied = false; int32_t code = TSDB_CODE_SUCCESS; SRow* pTSRow = NULL; TSDBROW* pRow = tMergeTreeGetRow(&pLastBlockReader->mergeTree); // create local variable to hold the row value TSDBROW fRow = {.iRow = pRow->iRow, .type = TSDBROW_COL_FMT, .pBlockData = pRow->pBlockData}; tsdbTrace("fRow ptr:%p, %d, uid:%" PRIu64 ", %s", pRow->pBlockData, pRow->iRow, pLastBlockReader->uid, pReader->idStr); // only last block exists if ((!mergeBlockData) || (tsLastBlock != pBlockData->aTSKEY[pDumpInfo->rowIndex])) { code = tryCopyDistinctRowFromSttBlock(&fRow, pLastBlockReader, pBlockScanInfo, tsLastBlock, pReader, &copied); if (code) { return code; } if (copied) { pBlockScanInfo->lastKey = tsLastBlock; return TSDB_CODE_SUCCESS; } else { code = tsdbRowMergerAdd(pMerger, &fRow, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } TSDBROW* pRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); tsdbRowMergerAdd(pMerger, pRow1, NULL); doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLastBlock, pMerger, &pReader->info.verRange, pReader->idStr); code = tsdbRowMergerGetRow(pMerger, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } code = doAppendRowFromTSRow(pReader->resBlockInfo.pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(pMerger); if (code != TSDB_CODE_SUCCESS) { return code; } } } else { // not merge block data code = tsdbRowMergerAdd(pMerger, &fRow, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLastBlock, pMerger, &pReader->info.verRange, pReader->idStr); // merge with block data if ts == key if (tsLastBlock == pBlockData->aTSKEY[pDumpInfo->rowIndex]) { doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader); } code = tsdbRowMergerGetRow(pMerger, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } code = doAppendRowFromTSRow(pReader->resBlockInfo.pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(pMerger); if (code != TSDB_CODE_SUCCESS) { return code; } } return TSDB_CODE_SUCCESS; } static int32_t mergeFileBlockAndLastBlock(STsdbReader* pReader, SLastBlockReader* pLastBlockReader, int64_t key, STableBlockScanInfo* pBlockScanInfo, SBlockData* pBlockData) { SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; SRowMerger* pMerger = &pReader->status.merger; // merge is not initialized yet, due to the fact that the pReader->info.pSchema is not initialized if (pMerger->pArray == NULL) { ASSERT(pReader->info.pSchema == NULL); STSchema* ps = getTableSchemaImpl(pReader, pBlockScanInfo->uid); if (ps == NULL) { return terrno; } } 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 tsLast = getCurrentKeyInLastBlock(pLastBlockReader); if (ASCENDING_TRAVERSE(pReader->info.order)) { if (key < tsLast) { return mergeRowsInFileBlocks(pBlockData, pBlockScanInfo, key, pReader); } else if (key > tsLast) { return doMergeFileBlockAndLastBlock(pLastBlockReader, pReader, pBlockScanInfo, NULL, false); } } else { if (key > tsLast) { return mergeRowsInFileBlocks(pBlockData, pBlockScanInfo, key, pReader); } else if (key < tsLast) { return doMergeFileBlockAndLastBlock(pLastBlockReader, pReader, pBlockScanInfo, NULL, false); } } // the following for key == tsLast SRow* pTSRow = NULL; int32_t code = tsdbRowMergerAdd(pMerger, &fRow, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader); TSDBROW* pRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); tsdbRowMergerAdd(pMerger, pRow1, NULL); doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLast, pMerger, &pReader->info.verRange, pReader->idStr); code = tsdbRowMergerGetRow(pMerger, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } code = doAppendRowFromTSRow(pReader->resBlockInfo.pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(pMerger); return code; } 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* pMerger = &pReader->status.merger; 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); STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); if (pSchema == NULL) { return code; } STSchema* piSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(piRow), pReader, pBlockScanInfo->uid); if (piSchema == NULL) { return code; } // merge is not initialized yet, due to the fact that the pReader->info.pSchema is not initialized if (pMerger->pArray == NULL) { ASSERT(pReader->info.pSchema == NULL); STSchema* ps = getTableSchemaImpl(pReader, pBlockScanInfo->uid); if (ps == NULL) { return terrno; } } int64_t minKey = 0; if (ASCENDING_TRAVERSE(pReader->info.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->info.order)) { if (minKey == key) { init = true; TSDBROW fRow = tsdbRowFromBlockData(pBlockData, pDumpInfo->rowIndex); code = tsdbRowMergerAdd(pMerger, &fRow, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader); } if (minKey == tsLast) { TSDBROW* pRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); if (init) { tsdbRowMergerAdd(pMerger, pRow1, NULL); } else { init = true; code = tsdbRowMergerAdd(pMerger, pRow1, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLast, pMerger, &pReader->info.verRange, pReader->idStr); } if (minKey == ik.ts) { if (init) { tsdbRowMergerAdd(pMerger, piRow, piSchema); } else { init = true; code = tsdbRowMergerAdd(pMerger, piRow, piSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } code = doMergeRowsInBuf(&pBlockScanInfo->iiter, pBlockScanInfo->uid, ik.ts, pBlockScanInfo->delSkyline, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } if (minKey == k.ts) { if (init) { tsdbRowMergerAdd(pMerger, pRow, pSchema); } else { // STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); code = tsdbRowMergerAdd(pMerger, pRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } code = doMergeRowsInBuf(&pBlockScanInfo->iter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } } else { if (minKey == k.ts) { init = true; code = tsdbRowMergerAdd(pMerger, pRow, pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } code = doMergeRowsInBuf(&pBlockScanInfo->iter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } if (minKey == ik.ts) { if (init) { tsdbRowMergerAdd(pMerger, piRow, piSchema); } else { init = true; code = tsdbRowMergerAdd(pMerger, piRow, piSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } code = doMergeRowsInBuf(&pBlockScanInfo->iiter, pBlockScanInfo->uid, ik.ts, pBlockScanInfo->delSkyline, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } if (minKey == tsLast) { TSDBROW* pRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); if (init) { tsdbRowMergerAdd(pMerger, pRow1, NULL); } else { init = true; code = tsdbRowMergerAdd(pMerger, pRow1, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } doMergeRowsInLastBlock(pLastBlockReader, pBlockScanInfo, tsLast, pMerger, &pReader->info.verRange, pReader->idStr); } if (minKey == key) { TSDBROW fRow = tsdbRowFromBlockData(pBlockData, pDumpInfo->rowIndex); if (!init) { code = tsdbRowMergerAdd(pMerger, &fRow, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } } else { tsdbRowMergerAdd(pMerger, &fRow, NULL); } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader); } } code = tsdbRowMergerGetRow(pMerger, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } code = doAppendRowFromTSRow(pReader->resBlockInfo.pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(pMerger); return code; } int32_t doInitMemDataIter(STsdbReader* pReader, STbData** pData, STableBlockScanInfo* pBlockScanInfo, TSDBKEY* pKey, SMemTable* pMem, SIterInfo* pIter, const char* type) { int32_t code = TSDB_CODE_SUCCESS; int32_t backward = (!ASCENDING_TRAVERSE(pReader->info.order)); pIter->hasVal = false; if (pMem != NULL) { *pData = tsdbGetTbDataFromMemTable(pMem, pReader->info.suid, pBlockScanInfo->uid); if ((*pData) != NULL) { code = tsdbTbDataIterCreate((*pData), pKey, backward, &pIter->iter); if (code == TSDB_CODE_SUCCESS) { pIter->hasVal = (tsdbTbDataIterGet(pIter->iter) != NULL); tsdbDebug("%p uid:%" PRIu64 ", check data in %s from skey:%" PRId64 ", order:%d, ts range in buf:%" PRId64 "-%" PRId64 " %s", pReader, pBlockScanInfo->uid, type, pKey->ts, pReader->info.order, (*pData)->minKey, (*pData)->maxKey, pReader->idStr); } else { tsdbError("%p uid:%" PRIu64 ", failed to create iterator for %s, code:%s, %s", pReader, pBlockScanInfo->uid, type, tstrerror(code), pReader->idStr); return code; } } } else { tsdbDebug("%p uid:%" PRIu64 ", no data in %s, %s", pReader, pBlockScanInfo->uid, type, pReader->idStr); } return code; } static int32_t initMemDataIterator(STableBlockScanInfo* pBlockScanInfo, STsdbReader* pReader) { if (pBlockScanInfo->iterInit) { return TSDB_CODE_SUCCESS; } STbData* d = NULL; TSDBKEY startKey = {0}; if (ASCENDING_TRAVERSE(pReader->info.order)) { startKey = (TSDBKEY){.ts = pBlockScanInfo->lastKey + 1, .version = pReader->info.verRange.minVer}; } else { startKey = (TSDBKEY){.ts = pBlockScanInfo->lastKey - 1, .version = pReader->info.verRange.maxVer}; } int32_t code = doInitMemDataIter(pReader, &d, pBlockScanInfo, &startKey, pReader->pReadSnap->pMem, &pBlockScanInfo->iter, "mem"); if (code != TSDB_CODE_SUCCESS) { return code; } STbData* di = NULL; code = doInitMemDataIter(pReader, &di, pBlockScanInfo, &startKey, pReader->pReadSnap->pIMem, &pBlockScanInfo->iiter, "imem"); if (code != TSDB_CODE_SUCCESS) { return code; } loadMemTombData(&pBlockScanInfo->pMemDelData, d, di, pReader->info.verRange.maxVer); 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->info.verRange.maxVer || ver < pReader->info.verRange.minVer) { return false; } int64_t ts = pBlockData->aTSKEY[pDumpInfo->rowIndex]; if (ts > pReader->info.window.ekey || ts < pReader->info.window.skey) { return false; } if (hasBeenDropped(pBlockScanInfo->delSkyline, &pBlockScanInfo->fileDelIndex, ts, ver, pReader->info.order, &pReader->info.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); } pLBlockReader->uid = pScanInfo->uid; STimeWindow w = pLBlockReader->window; if (ASCENDING_TRAVERSE(pLBlockReader->order)) { w.skey = pScanInfo->lastKeyInStt; } else { w.ekey = pScanInfo->lastKeyInStt; } int64_t st = taosGetTimestampUs(); tsdbDebug("init last block reader, window:%" PRId64 "-%" PRId64 ", uid:%" PRIu64 ", %s", w.skey, w.ekey, pScanInfo->uid, pReader->idStr); SMergeTreeConf conf = { .uid = pScanInfo->uid, .suid = pReader->info.suid, .pTsdb = pReader->pTsdb, .timewindow = w, .verRange = pLBlockReader->verRange, .strictTimeRange = false, .pSchema = pReader->info.pSchema, .pCurrentFileset = pReader->status.pCurrentFileset, .backward = (pLBlockReader->order == TSDB_ORDER_DESC), .pSttFileBlockIterArray = pReader->status.pLDataIterArray, .pCols = pReader->suppInfo.colId, .numOfCols = pReader->suppInfo.numOfCols, .loadTombFn = loadSttTombDataForAll, .pReader = pReader, .idstr = pReader->idStr, }; int32_t code = tMergeTreeOpen2(&pLBlockReader->mergeTree, &conf); if (code != TSDB_CODE_SUCCESS) { return false; } initMemDataIterator(pScanInfo, pReader); initDelSkylineIterator(pScanInfo, pReader->info.order, &pReader->cost); code = nextRowFromLastBlocks(pLBlockReader, pScanInfo, &pReader->info.verRange); int64_t el = taosGetTimestampUs() - st; pReader->cost.initLastBlockReader += (el / 1000.0); tsdbDebug("init last block reader completed, elapsed time:%" PRId64 "us %s", el, pReader->idStr); return code; } 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) { SRowMerger* pMerger = &pReader->status.merger; SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; bool copied = false; int32_t code = tryCopyDistinctRowFromFileBlock(pReader, pBlockData, key, pDumpInfo, &copied); if (code != TSDB_CODE_SUCCESS) { return code; } // merge is not initialized yet, due to the fact that the pReader->info.pSchema is not initialized if (pMerger->pArray == NULL) { ASSERT(pReader->info.pSchema == NULL); STSchema* ps = getTableSchemaImpl(pReader, pBlockScanInfo->uid); if (ps == NULL) { return terrno; } } if (copied) { pBlockScanInfo->lastKey = key; return TSDB_CODE_SUCCESS; } else { TSDBROW fRow = tsdbRowFromBlockData(pBlockData, pDumpInfo->rowIndex); SRow* pTSRow = NULL; code = tsdbRowMergerAdd(pMerger, &fRow, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } doMergeRowsInFileBlocks(pBlockData, pBlockScanInfo, pReader); code = tsdbRowMergerGetRow(pMerger, &pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } code = doAppendRowFromTSRow(pReader->resBlockInfo.pResBlock, pReader, pTSRow, pBlockScanInfo); taosMemoryFree(pTSRow); tsdbRowMergerClear(pMerger); return code; } } 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] : (ASCENDING_TRAVERSE(pReader->info.order) ? INT64_MAX : 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->info.order) ? 1 : -1; int32_t nextIndex = -1; *loadNeighbor = false; SBrinRecord rec = {0}; bool hasNeighbor = getNeighborBlockOfSameTable(pBlockInfo, pBlockScanInfo, &nextIndex, pReader->info.order, &rec); if (!hasNeighbor) { // do nothing return code; } if (overlapWithNeighborBlock2(pBlockInfo, &rec, pReader->info.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->resBlockInfo.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->resBlockInfo.pResBlock; SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(&pReader->status.blockIter); SLastBlockReader* pLastBlockReader = pReader->status.fileIter.pLastBlockReader; bool asc = ASCENDING_TRAVERSE(pReader->info.order); int64_t st = taosGetTimestampUs(); int32_t step = asc ? 1 : -1; double el = 0; SBrinRecord* pRecord = &pBlockInfo->record; SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; STableBlockScanInfo* pBlockScanInfo = NULL; if (pBlockInfo != NULL) { if (pReader->pIgnoreTables && taosHashGet(*pReader->pIgnoreTables, &pBlockInfo->uid, sizeof(pBlockInfo->uid))) { setBlockAllDumped(pDumpInfo, pRecord->lastKey, pReader->info.order); return code; } pBlockScanInfo = getTableBlockScanInfo(pReader->status.pTableMap, pBlockInfo->uid, pReader->idStr); if (pBlockScanInfo == NULL) { goto _end; } pRecord = &pBlockInfo->record; TSDBKEY keyInBuf = getCurrentKeyInBuf(pBlockScanInfo, pReader); // it is a clean block, load it directly if (isCleanFileDataBlock(pReader, pBlockInfo, pBlockScanInfo, keyInBuf, pLastBlockReader) && (pRecord->numRow <= pReader->resBlockInfo.capacity)) { if (asc || (!hasDataInLastBlock(pLastBlockReader))) { code = copyBlockDataToSDataBlock(pReader); if (code) { goto _end; } // record the last key value pBlockScanInfo->lastKey = asc ? pRecord->lastKey : pRecord->firstKey; goto _end; } } } else { // file blocks not exist ASSERT(0); pBlockScanInfo = *pReader->status.pTableIter; if (pReader->pIgnoreTables && taosHashGet(*pReader->pIgnoreTables, &pBlockScanInfo->uid, sizeof(pBlockScanInfo->uid))) { // setBlockAllDumped(pDumpInfo, pBlock->maxKey.ts, pReader->info.order); return code; } } 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; if (pDumpInfo->rowIndex >= pBlockData->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, pRecord->lastKey, pReader->info.order); break; } } } } // no data in last block and block, no need to proceed. if (hasBlockData == false) { break; } code = buildComposedDataBlockImpl(pReader, pBlockScanInfo, pBlockData, pLastBlockReader); if (code) { goto _end; } // currently loaded file data block is consumed if ((pBlockData->nRow > 0) && (pDumpInfo->rowIndex >= pBlockData->nRow || pDumpInfo->rowIndex < 0)) { setBlockAllDumped(pDumpInfo, pRecord->lastKey, pReader->info.order); break; } if (pResBlock->info.rows >= pReader->resBlockInfo.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:%" PRId64 ", 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, int32_t order, SCostSummary* pCost) { int32_t code = 0; int32_t newDelDataInFile = taosArrayGetSize(pBlockScanInfo->pFileDelData); if (newDelDataInFile == 0 && ((pBlockScanInfo->delSkyline != NULL) || (TARRAY_SIZE(pBlockScanInfo->pMemDelData) == 0))) { return code; } int64_t st = taosGetTimestampUs(); if (pBlockScanInfo->delSkyline != NULL) { taosArrayClear(pBlockScanInfo->delSkyline); } else { pBlockScanInfo->delSkyline = taosArrayInit(4, sizeof(TSDBKEY)); } SArray* pSource = pBlockScanInfo->pFileDelData; if (pSource == NULL) { pSource = pBlockScanInfo->pMemDelData; } else { taosArrayAddAll(pSource, pBlockScanInfo->pMemDelData); } code = tsdbBuildDeleteSkyline(pSource, 0, taosArrayGetSize(pSource) - 1, pBlockScanInfo->delSkyline); taosArrayClear(pBlockScanInfo->pFileDelData); int32_t index = getInitialDelIndex(pBlockScanInfo->delSkyline, order); pBlockScanInfo->iter.index = index; pBlockScanInfo->iiter.index = index; pBlockScanInfo->fileDelIndex = index; pBlockScanInfo->sttBlockDelIndex = index; double el = taosGetTimestampUs() - st; pCost->createSkylineIterTime = el / 1000.0; return code; } TSDBKEY getCurrentKeyInBuf(STableBlockScanInfo* pScanInfo, STsdbReader* pReader) { bool asc = ASCENDING_TRAVERSE(pReader->info.order); 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, SArray* pTableList) { SReaderStatus* pStatus = &pReader->status; pBlockNum->numOfBlocks = 0; pBlockNum->numOfLastFiles = 0; size_t numOfTables = tSimpleHashGetSize(pReader->status.pTableMap); SArray* pIndexList = taosArrayInit(numOfTables, sizeof(SBrinBlk)); while (1) { // only check here, since the iterate data in memory is very fast. if (pReader->code != TSDB_CODE_SUCCESS) { tsdbWarn("tsdb reader is stopped ASAP, code:%s, %s", strerror(pReader->code), pReader->idStr); return pReader->code; } bool hasNext = false; int32_t code = filesetIteratorNext(&pStatus->fileIter, pReader, &hasNext); if (code != TSDB_CODE_SUCCESS) { 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->status.pCurrentFileset->lvlArr->size > 0) { code = doLoadFileBlock(pReader, pIndexList, pBlockNum, pTableList); 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); return loadDataFileTombDataForAll(pReader); } static void resetTableListIndex(SReaderStatus* pStatus) { STableUidList* pList = &pStatus->uidList; pList->currentIndex = 0; uint64_t uid = pList->tableUidList[0]; pStatus->pTableIter = tSimpleHashGet(pStatus->pTableMap, &uid, sizeof(uid)); } static bool moveToNextTable(STableUidList* pOrderedCheckInfo, SReaderStatus* pStatus) { pOrderedCheckInfo->currentIndex += 1; if (pOrderedCheckInfo->currentIndex >= tSimpleHashGetSize(pStatus->pTableMap)) { pStatus->pTableIter = NULL; return false; } uint64_t uid = pOrderedCheckInfo->tableUidList[pOrderedCheckInfo->currentIndex]; pStatus->pTableIter = tSimpleHashGet(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; int32_t code = TSDB_CODE_SUCCESS; if (tSimpleHashGetSize(pStatus->pTableMap) == 0) { return TSDB_CODE_SUCCESS; } SSDataBlock* pResBlock = pReader->resBlockInfo.pResBlock; while (1) { if (pReader->code != TSDB_CODE_SUCCESS) { tsdbWarn("tsdb reader is stopped ASAP, code:%s, %s", strerror(pReader->code), pReader->idStr); return pReader->code; } // load the last data block of current table STableBlockScanInfo* pScanInfo = *(STableBlockScanInfo**)pStatus->pTableIter; if (pScanInfo == NULL) { tsdbError("table Iter is null, invalid pScanInfo, try next table %s", pReader->idStr); bool hasNexTable = moveToNextTable(pUidList, pStatus); if (!hasNexTable) { return TSDB_CODE_SUCCESS; } continue; } if (pReader->pIgnoreTables && taosHashGet(*pReader->pIgnoreTables, &pScanInfo->uid, sizeof(pScanInfo->uid))) { // reset the index in last block when handing a new file bool hasNexTable = moveToNextTable(pUidList, pStatus); if (!hasNexTable) { return TSDB_CODE_SUCCESS; } continue; } bool hasDataInLastFile = initLastBlockReader(pLastBlockReader, pScanInfo, pReader); if (!hasDataInLastFile) { 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; } code = buildComposedDataBlockImpl(pReader, pScanInfo, &pReader->status.fileBlockData, pLastBlockReader); if (code) { return code; } if (pResBlock->info.rows >= pReader->resBlockInfo.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:%" PRId64 ", 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; SReaderStatus* pStatus = &pReader->status; SDataBlockIter* pBlockIter = &pStatus->blockIter; STableBlockScanInfo* pScanInfo = NULL; SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter); SLastBlockReader* pLastBlockReader = pReader->status.fileIter.pLastBlockReader; if (pReader->pIgnoreTables && taosHashGet(*pReader->pIgnoreTables, &pBlockInfo->uid, sizeof(pBlockInfo->uid))) { setBlockAllDumped(&pStatus->fBlockDumpInfo, pBlockInfo->record.lastKey, pReader->info.order); return code; } if (pReader->code != TSDB_CODE_SUCCESS) { return pReader->code; } pScanInfo = getTableBlockScanInfo(pReader->status.pTableMap, pBlockInfo->uid, pReader->idStr); if (pScanInfo == NULL) { return terrno; } initLastBlockReader(pLastBlockReader, pScanInfo, pReader); TSDBKEY keyInBuf = getCurrentKeyInBuf(pScanInfo, pReader); if (fileBlockShouldLoad(pReader, pBlockInfo, 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->info.order, keyInBuf, pBlockInfo)) { // 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->info.order)) ? pBlockInfo->record.firstKey : pBlockInfo->record.lastKey; code = buildDataBlockFromBuf(pReader, pScanInfo, endKey); } else { bool bHasDataInLastBlock = hasDataInLastBlock(pLastBlockReader); int64_t tsLast = bHasDataInLastBlock ? getCurrentKeyInLastBlock(pLastBlockReader) : INT64_MIN; if (!bHasDataInLastBlock || ((ASCENDING_TRAVERSE(pReader->info.order) && pBlockInfo->record.lastKey < tsLast) || (!ASCENDING_TRAVERSE(pReader->info.order) && pBlockInfo->record.firstKey > tsLast))) { // whole block is required, return it directly SDataBlockInfo* pInfo = &pReader->resBlockInfo.pResBlock->info; pInfo->rows = pBlockInfo->record.numRow; pInfo->id.uid = pScanInfo->uid; pInfo->dataLoad = 0; pInfo->window = (STimeWindow){.skey = pBlockInfo->record.firstKey, .ekey = pBlockInfo->record.lastKey}; setComposedBlockFlag(pReader, false); setBlockAllDumped(&pStatus->fBlockDumpInfo, pBlockInfo->record.lastKey, pReader->info.order); // update the last key for the corresponding table pScanInfo->lastKey = ASCENDING_TRAVERSE(pReader->info.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, pBlockInfo->record.numRow, pBlockInfo->record.firstKey, pBlockInfo->record.lastKey, pReader->idStr); } else { SBlockData* pBData = &pReader->status.fileBlockData; tBlockDataReset(pBData); SSDataBlock* pResBlock = pReader->resBlockInfo.pResBlock; tsdbDebug("load data in last block firstly %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; } code = buildComposedDataBlockImpl(pReader, pScanInfo, &pReader->status.fileBlockData, pLastBlockReader); if (code) { return code; } if (pResBlock->info.rows >= pReader->resBlockInfo.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:%" PRId64 ", 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 (pReader->code != TSDB_CODE_SUCCESS) ? pReader->code : code; } static int32_t doSumFileBlockRows(STsdbReader* pReader, SDataFReader* pFileReader) { 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 = tSimpleHashGetSize(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; } SBlockIdx* pBlockIdx = NULL; for (int32_t i = 0; i < num; ++i) { pBlockIdx = (SBlockIdx*)taosArrayGet(aBlockIdx, i); if (pBlockIdx->suid != pReader->info.suid) { continue; } STableBlockScanInfo** p = tSimpleHashGet(pReader->status.pTableMap, &pBlockIdx->uid, sizeof(pBlockIdx->uid)); if (p == NULL) { continue; } STableBlockScanInfo* pScanInfo = *p; SDataBlk block = {0}; // for (int32_t j = 0; j < pScanInfo->mapData.nItem; ++j) { // tGetDataBlk(pScanInfo->mapData.pData + pScanInfo->mapData.aOffset[j], &block); // pReader->rowsNum += block.nRow; // } } _end: tsdbBICacheRelease(pFileReader->pTsdb->biCache, handle); return code; } static int32_t doSumSttBlockRows(STsdbReader* pReader) { int32_t code = TSDB_CODE_SUCCESS; SLastBlockReader* pLastBlockReader = pReader->status.fileIter.pLastBlockReader; SSttBlockLoadInfo* pBlockLoadInfo = NULL; #if 0 for (int32_t i = 0; i < pReader->pFileReader->pSet->nSttF; ++i) { // open all last file pBlockLoadInfo = &pLastBlockReader->pInfo[i]; code = tsdbReadSttBlk(pReader->pFileReader, i, pBlockLoadInfo->aSttBlk); if (code) { return code; } size_t size = taosArrayGetSize(pBlockLoadInfo->aSttBlk); if (size >= 1) { SSttBlk* pStart = taosArrayGet(pBlockLoadInfo->aSttBlk, 0); SSttBlk* pEnd = taosArrayGet(pBlockLoadInfo->aSttBlk, size - 1); // all identical if (pStart->suid == pEnd->suid) { if (pStart->suid != pReader->info.suid) { // no qualified stt block existed taosArrayClear(pBlockLoadInfo->aSttBlk); continue; } for (int32_t j = 0; j < size; ++j) { SSttBlk* p = taosArrayGet(pBlockLoadInfo->aSttBlk, j); pReader->rowsNum += p->nRow; } } else { for (int32_t j = 0; j < size; ++j) { SSttBlk* p = taosArrayGet(pBlockLoadInfo->aSttBlk, j); uint64_t s = p->suid; if (s < pReader->info.suid) { continue; } if (s == pReader->info.suid) { pReader->rowsNum += p->nRow; } else if (s > pReader->info.suid) { break; } } } } } #endif return code; } static int32_t readRowsCountFromFiles(STsdbReader* pReader) { int32_t code = TSDB_CODE_SUCCESS; while (1) { bool hasNext = false; code = filesetIteratorNext(&pReader->status.fileIter, pReader, &hasNext); if (code) { return code; } if (!hasNext) { // no data files on disk break; } // code = doSumFileBlockRows(pReader, pReader->pFileReader); if (code != TSDB_CODE_SUCCESS) { return code; } code = doSumSttBlockRows(pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } pReader->status.loadFromFile = false; return code; } static int32_t readRowsCountFromMem(STsdbReader* pReader) { int32_t code = TSDB_CODE_SUCCESS; int64_t memNum = 0, imemNum = 0; if (pReader->pReadSnap->pMem != NULL) { tsdbMemTableCountRows(pReader->pReadSnap->pMem, pReader->status.pTableMap, &memNum); } if (pReader->pReadSnap->pIMem != NULL) { tsdbMemTableCountRows(pReader->pReadSnap->pIMem, pReader->status.pTableMap, &imemNum); } pReader->rowsNum += memNum + imemNum; return code; } static int32_t buildBlockFromBufferSequentially(STsdbReader* pReader) { SReaderStatus* pStatus = &pReader->status; STableUidList* pUidList = &pStatus->uidList; while (1) { if (pReader->code != TSDB_CODE_SUCCESS) { tsdbWarn("tsdb reader is stopped ASAP, code:%s, %s", strerror(pReader->code), pReader->idStr); return pReader->code; } STableBlockScanInfo** pBlockScanInfo = pStatus->pTableIter; if (pReader->pIgnoreTables && taosHashGet(*pReader->pIgnoreTables, &(*pBlockScanInfo)->uid, sizeof((*pBlockScanInfo)->uid))) { bool hasNexTable = moveToNextTable(pUidList, pStatus); if (!hasNexTable) { return TSDB_CODE_SUCCESS; } pBlockScanInfo = pStatus->pTableIter; } initMemDataIterator(*pBlockScanInfo, pReader); initDelSkylineIterator(*pBlockScanInfo, pReader->info.order, &pReader->cost); int64_t endKey = (ASCENDING_TRAVERSE(pReader->info.order)) ? INT64_MAX : INT64_MIN; int32_t code = buildDataBlockFromBuf(pReader, *pBlockScanInfo, endKey); if (code != TSDB_CODE_SUCCESS) { return code; } if (pReader->resBlockInfo.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->info.order) ? INT64_MIN : INT64_MAX; SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter); SReaderStatus* pStatus = &pReader->status; SFileBlockDumpInfo* pDumpInfo = &pStatus->fBlockDumpInfo; if (pBlockInfo) { STableBlockScanInfo* pScanInfo = tSimpleHashGet(pBlockIter->pTableMap, &pBlockInfo->uid, sizeof(pBlockInfo->uid)); if (pScanInfo) { lastKey = pScanInfo->lastKey; } pDumpInfo->totalRows = pBlockInfo->record.numRow; pDumpInfo->rowIndex = ASCENDING_TRAVERSE(pReader->info.order) ? 0 : pBlockInfo->record.numRow - 1; } else { pDumpInfo->totalRows = 0; pDumpInfo->rowIndex = 0; } pDumpInfo->allDumped = false; pDumpInfo->lastKey = lastKey; } static int32_t initForFirstBlockInFile(STsdbReader* pReader, SDataBlockIter* pBlockIter) { SBlockNumber num = {0}; SArray* pTableList = taosArrayInit(40, POINTER_BYTES); int32_t code = moveToNextFile(pReader, &num, pTableList); if (code != TSDB_CODE_SUCCESS) { taosArrayDestroy(pTableList); return code; } // all data files are consumed, try data in buffer if (num.numOfBlocks + num.numOfLastFiles == 0) { pReader->status.loadFromFile = false; taosArrayDestroy(pTableList); return code; } // initialize the block iterator for a new fileset if (num.numOfBlocks > 0) { code = initBlockIterator(pReader, pBlockIter, num.numOfBlocks, pTableList); } else { // no block data, only last block exists tBlockDataReset(&pReader->status.fileBlockData); resetDataBlockIterator(pBlockIter, pReader->info.order); resetTableListIndex(&pReader->status); } // set the correct start position according to the query time window initBlockDumpInfo(pReader, pBlockIter); taosArrayDestroy(pTableList); return code; } static bool fileBlockPartiallyRead(SFileBlockDumpInfo* pDumpInfo, bool asc) { return (!pDumpInfo->allDumped) && ((pDumpInfo->rowIndex > 0 && asc) || (pDumpInfo->rowIndex < (pDumpInfo->totalRows - 1) && (!asc))); } typedef enum { TSDB_READ_RETURN = 0x1, TSDB_READ_CONTINUE = 0x2, } ERetrieveType; static ERetrieveType doReadDataFromLastFiles(STsdbReader* pReader) { int32_t code = TSDB_CODE_SUCCESS; SSDataBlock* pResBlock = pReader->resBlockInfo.pResBlock; SDataBlockIter* pBlockIter = &pReader->status.blockIter; while (1) { terrno = 0; code = doLoadLastBlockSequentially(pReader); if (code != TSDB_CODE_SUCCESS) { terrno = code; return TSDB_READ_RETURN; } if (pResBlock->info.rows > 0) { return TSDB_READ_RETURN; } // all data blocks are checked in this last block file, now let's try the next file ASSERT(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)) { terrno = code; return TSDB_READ_RETURN; } if (pBlockIter->numOfBlocks > 0) { // there are data blocks existed. return TSDB_READ_CONTINUE; } else { // all blocks in data file are checked, let's check the data in last files resetTableListIndex(&pReader->status); } } } static int32_t buildBlockFromFiles(STsdbReader* pReader) { int32_t code = TSDB_CODE_SUCCESS; bool asc = ASCENDING_TRAVERSE(pReader->info.order); SDataBlockIter* pBlockIter = &pReader->status.blockIter; SSDataBlock* pResBlock = pReader->resBlockInfo.pResBlock; if (pBlockIter->numOfBlocks == 0) { // let's try to extract data from stt files. ERetrieveType type = doReadDataFromLastFiles(pReader); if (type == TSDB_READ_RETURN) { return terrno; } code = doBuildDataBlock(pReader); if (code != TSDB_CODE_SUCCESS || pResBlock->info.rows > 0) { return code; } } 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 { // all data blocks in files are checked, let's check the data in last files. // 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->info.order); resetTableListIndex(&pReader->status); ERetrieveType type = doReadDataFromLastFiles(pReader); if (type == TSDB_READ_RETURN) { return terrno; } } } code = doBuildDataBlock(pReader); } if (code != TSDB_CODE_SUCCESS || pResBlock->info.rows > 0) { return code; } } } 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, int64_t key, int64_t ver, int32_t order, SVersionRange* pVerRange) { if (pDelList == NULL || (taosArrayGetSize(pDelList) == 0)) { 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(key >= last->ts); if (key > last->ts) { return false; } else if (key == last->ts) { TSDBKEY* prev = taosArrayGet(pDelList, num - 2); return (prev->version >= ver && prev->version <= pVerRange->maxVer && prev->version >= pVerRange->minVer); } } else { TSDBKEY* pCurrent = taosArrayGet(pDelList, *index); TSDBKEY* pNext = taosArrayGet(pDelList, (*index) + 1); if (key < pCurrent->ts) { return false; } if (pCurrent->ts <= key && pNext->ts >= key && pCurrent->version >= ver && pVerRange->maxVer >= pCurrent->version) { return true; } while (pNext->ts <= key && (*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 <= key && pNext->ts >= key && pCurrent->version >= ver && pVerRange->maxVer >= pCurrent->version) { return true; } } } return false; } } else { if (*index <= 0) { TSDBKEY* pFirst = taosArrayGet(pDelList, 0); if (key < pFirst->ts) { return false; } else if (key == pFirst->ts) { return pFirst->version >= ver; } else { ASSERT(0); } } else { TSDBKEY* pCurrent = taosArrayGet(pDelList, *index); TSDBKEY* pPrev = taosArrayGet(pDelList, (*index) - 1); if (key > pCurrent->ts) { return false; } if (pPrev->ts <= key && pCurrent->ts >= key && pPrev->version >= ver) { return true; } while (pPrev->ts >= key && (*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 <= key && pCurrent->ts >= key && pPrev->version >= ver) { 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->info.window)) { pIter->hasVal = false; return NULL; } // it is a valid data version if ((key.version <= pReader->info.verRange.maxVer && key.version >= pReader->info.verRange.minVer) && (!hasBeenDropped(pDelList, &pIter->index, key.ts, key.version, pReader->info.order, &pReader->info.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->info.window)) { pIter->hasVal = false; return NULL; } if (key.version <= pReader->info.verRange.maxVer && key.version >= pReader->info.verRange.minVer && (!hasBeenDropped(pDelList, &pIter->index, key.ts, key.version, pReader->info.order, &pReader->info.verRange))) { return pRow; } } } int32_t doMergeRowsInBuf(SIterInfo* pIter, uint64_t uid, int64_t ts, SArray* pDelList, STsdbReader* pReader) { SRowMerger* pMerger = &pReader->status.merger; 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 tsdbRowMergerAdd(pMerger, pRow, NULL); } } 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); tsdbRowMergerAdd(pMerger, &fRow, NULL); 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, 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->info.order); *state = CHECK_FILEBLOCK_QUIT; int32_t step = ASCENDING_TRAVERSE(pReader->info.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->info.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) { SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo; SRowMerger* pMerger = &pReader->status.merger; bool asc = ASCENDING_TRAVERSE(pReader->info.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->info.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); if (pFileBlockInfo == NULL) { st = CHECK_FILEBLOCK_QUIT; break; } checkForNeighborFileBlock(pReader, pScanInfo, 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* pRow1 = tMergeTreeGetRow(&pLastBlockReader->mergeTree); tsdbRowMergerAdd(pMerger, pRow1, NULL); } else { tsdbTrace("uid:%" PRIu64 " last del index:%d, del range:%d, lastKeyInStt:%" PRId64 ", %s", pScanInfo->uid, pScanInfo->sttBlockDelIndex, (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; } } } 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; } code = tsdbRowMergerAdd(&pReader->status.merger, ¤t, pTSchema); if (code != TSDB_CODE_SUCCESS) { return code; } STSchema* pTSchema1 = doGetSchemaForTSRow(TSDBROW_SVERSION(pNextRow), pReader, uid); if (pTSchema1 == NULL) { return terrno; } tsdbRowMergerAdd(&pReader->status.merger, pNextRow, pTSchema1); } else { // let's merge rows in file block code = tsdbRowMergerAdd(&pReader->status.merger, ¤t, pReader->info.pSchema); if (code != TSDB_CODE_SUCCESS) { return code; } tsdbRowMergerAdd(&pReader->status.merger, pNextRow, NULL); } code = doMergeRowsInBuf(pIter, uid, TSDBROW_TS(¤t), pDelList, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } code = tsdbRowMergerGetRow(&pReader->status.merger, &pResRow->pTSRow); if (code != TSDB_CODE_SUCCESS) { return code; } pResRow->type = TSDBROW_ROW_FMT; tsdbRowMergerClear(&pReader->status.merger); *freeTSRow = true; return TSDB_CODE_SUCCESS; } int32_t doMergeMemIMemRows(TSDBROW* pRow, TSDBROW* piRow, STableBlockScanInfo* pBlockScanInfo, STsdbReader* pReader, SRow** pTSRow) { SRowMerger* pMerger = &pReader->status.merger; TSDBKEY k = TSDBROW_KEY(pRow); TSDBKEY ik = TSDBROW_KEY(piRow); STSchema* pSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(pRow), pReader, pBlockScanInfo->uid); if (pSchema == NULL) { return terrno; } STSchema* piSchema = doGetSchemaForTSRow(TSDBROW_SVERSION(piRow), pReader, pBlockScanInfo->uid); if (piSchema == NULL) { return terrno; } if (ASCENDING_TRAVERSE(pReader->info.order)) { // ascending order imem --> mem int32_t code = tsdbRowMergerAdd(&pReader->status.merger, piRow, piSchema); if (code != TSDB_CODE_SUCCESS) { return code; } code = doMergeRowsInBuf(&pBlockScanInfo->iiter, pBlockScanInfo->uid, ik.ts, pBlockScanInfo->delSkyline, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } tsdbRowMergerAdd(&pReader->status.merger, pRow, pSchema); code = doMergeRowsInBuf(&pBlockScanInfo->iter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } else { int32_t code = tsdbRowMergerAdd(&pReader->status.merger, pRow, pSchema); if (code != TSDB_CODE_SUCCESS || pMerger->pTSchema == NULL) { return code; } code = doMergeRowsInBuf(&pBlockScanInfo->iter, pBlockScanInfo->uid, k.ts, pBlockScanInfo->delSkyline, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } tsdbRowMergerAdd(&pReader->status.merger, piRow, piSchema); code = doMergeRowsInBuf(&pBlockScanInfo->iiter, pBlockScanInfo->uid, ik.ts, pBlockScanInfo->delSkyline, pReader); if (code != TSDB_CODE_SUCCESS) { return code; } } int32_t code = tsdbRowMergerGetRow(pMerger, pTSRow); tsdbRowMergerClear(pMerger); return code; } static 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->info.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 code = TSDB_CODE_SUCCESS; SBlockLoadSuppInfo* pSupInfo = &pReader->suppInfo; STSchema* pSchema = doGetSchemaForTSRow(pTSRow->sver, pReader, uid); if (pSchema == NULL) { return terrno; } 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); code = doCopyColVal(pColInfoData, outputRowIndex, i, &colVal, pSupInfo); if (code) { return code; } 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; int32_t code = TSDB_CODE_SUCCESS; SBlockLoadSuppInfo* pSupInfo = &pReader->suppInfo; ((int64_t*)pReader->status.pPrimaryTsCol->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); code = doCopyColVal(pCol, outputRowIndex, i, &cv, pSupInfo); if (code) { return code; } 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->resBlockInfo.pResBlock; int32_t code = TSDB_CODE_SUCCESS; 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) { code = doAppendRowFromTSRow(pBlock, pReader, row.pTSRow, pBlockScanInfo); if (freeTSRow) { taosMemoryFree(row.pTSRow); } if (code) { return code; } } else { code = doAppendRowFromFileBlock(pBlock, pReader, row.pBlockData, row.iRow); if (code) { break; } } // no data in buffer, return immediately if (!(pBlockScanInfo->iter.hasVal || pBlockScanInfo->iiter.hasVal)) { break; } if (pBlock->info.rows >= capacity) { break; } } while (1); return code; } // TODO refactor: with createDataBlockScanInfo int32_t tsdbSetTableList2(STsdbReader* pReader, const void* pTableList, int32_t num) { int32_t size = tSimpleHashGetSize(pReader->status.pTableMap); STableBlockScanInfo** p = NULL; int32_t iter = 0; while ((p = tSimpleHashIterate(pReader->status.pTableMap, p, &iter)) != NULL) { clearBlockScanInfo(*p); } if (size < num) { int32_t code = ensureBlockScanInfoBuf(&pReader->blockInfoBuf, num); if (code) { return code; } char* p1 = taosMemoryRealloc(pReader->status.uidList.tableUidList, sizeof(uint64_t) * num); if (p1 == NULL) { return TSDB_CODE_OUT_OF_MEMORY; } pReader->status.uidList.tableUidList = (uint64_t*)p1; } tSimpleHashClear(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->info.order)) { int64_t skey = pReader->info.window.skey; pInfo->lastKey = (skey > INT64_MIN) ? (skey - 1) : skey; pInfo->lastKeyInStt = skey; } else { int64_t ekey = pReader->info.window.ekey; pInfo->lastKey = (ekey < INT64_MAX) ? (ekey + 1) : ekey; pInfo->lastKeyInStt = ekey; } tSimpleHashPut(pReader->status.pTableMap, &pInfo->uid, sizeof(uint64_t), &pInfo, POINTER_BYTES); } return TDB_CODE_SUCCESS; } void* tsdbGetIdx2(SMeta* pMeta) { if (pMeta == NULL) { return NULL; } return metaGetIdx(pMeta); } void* tsdbGetIvtIdx2(SMeta* pMeta) { if (pMeta == NULL) { return NULL; } return metaGetIvtIdx(pMeta); } uint64_t tsdbGetReaderMaxVersion2(STsdbReader* pReader) { return pReader->info.verRange.maxVer; } static int32_t doOpenReaderImpl(STsdbReader* pReader) { SReaderStatus* pStatus = &pReader->status; SDataBlockIter* pBlockIter = &pStatus->blockIter; initFilesetIterator(&pStatus->fileIter, pReader->pReadSnap->pfSetArray, pReader); resetDataBlockIterator(&pStatus->blockIter, pReader->info.order); int32_t code = TSDB_CODE_SUCCESS; if (pStatus->fileIter.numOfFiles == 0) { pStatus->loadFromFile = false; } else if (READ_MODE_COUNT_ONLY == pReader->info.readMode) { // DO NOTHING } else { code = initForFirstBlockInFile(pReader, pBlockIter); } if (!pStatus->loadFromFile) { resetTableListIndex(pStatus); } return code; } static void freeSchemaFunc(void* param) { void** p = (void**)param; taosMemoryFreeClear(*p); } static void clearSharedPtr(STsdbReader* p) { p->status.pTableMap = NULL; p->status.uidList.tableUidList = NULL; p->info.pSchema = NULL; p->pReadSnap = NULL; p->pSchemaMap = NULL; } static void setSharedPtr(STsdbReader* pDst, const STsdbReader* pSrc) { pDst->status.pTableMap = pSrc->status.pTableMap; pDst->status.uidList = pSrc->status.uidList; pDst->info.pSchema = pSrc->info.pSchema; pDst->pSchemaMap = pSrc->pSchemaMap; pDst->pReadSnap = pSrc->pReadSnap; pDst->pReadSnap->pfSetArray = pSrc->pReadSnap->pfSetArray; if (pDst->info.pSchema) { tsdbRowMergerInit(&pDst->status.merger, pDst->info.pSchema); } } // ====================================== EXPOSED APIs ====================================== int32_t tsdbReaderOpen2(void* pVnode, SQueryTableDataCond* pCond, void* pTableList, int32_t numOfTables, SSDataBlock* pResBlock, void** ppReader, const char* idstr, bool countOnly, SHashObj** pIgnoreTables) { STimeWindow window = pCond->twindows; SVnodeCfg* pConf = &(((SVnode*)pVnode)->config); int32_t capacity = pConf->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->info.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 - 1; pCond->twindows.skey = INT64_MIN; pCond->order = TSDB_ORDER_DESC; } else { pCond->twindows.skey = window.ekey + 1; 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, (void**)&((STsdbReader*)pReader)->innerReader[0], 1, pResBlock, idstr); if (code != TSDB_CODE_SUCCESS) { goto _err; } if (order == TSDB_ORDER_ASC) { pCond->twindows.skey = window.ekey + 1; pCond->twindows.ekey = INT64_MAX; } else { pCond->twindows.skey = INT64_MIN; pCond->twindows.ekey = window.ekey - 1; } pCond->order = order; code = tsdbReaderCreate(pVnode, pCond, (void**)&((STsdbReader*)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->info.pSchema = metaGetTbTSchema(pReader->pTsdb->pVnode->pMeta, pReader->info.suid, -1, 1); if (pReader->info.pSchema == NULL) { tsdbError("failed to get table schema, suid:%" PRIu64 ", ver:-1, %s", pReader->info.suid, pReader->idStr); } } else if (numOfTables > 0) { STableKeyInfo* pKey = pTableList; pReader->info.pSchema = metaGetTbTSchema(pReader->pTsdb->pVnode->pMeta, pKey->uid, -1, 1); if (pReader->info.pSchema == NULL) { tsdbError("failed to get table schema, uid:%" PRIu64 ", ver:-1, %s", pKey->uid, pReader->idStr); } } if (pReader->info.pSchema != NULL) { tsdbRowMergerInit(&pReader->status.merger, pReader->info.pSchema); } pReader->pSchemaMap = tSimpleHashInit(8, taosFastHash); if (pReader->pSchemaMap == NULL) { tsdbError("failed init schema hash for reader %s", pReader->idStr); code = TSDB_CODE_OUT_OF_MEMORY; goto _err; } tSimpleHashSetFreeFp(pReader->pSchemaMap, freeSchemaFunc); if (pReader->info.pSchema != NULL) { code = updateBlockSMAInfo(pReader->info.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->status.pLDataIterArray = taosArrayInit(4, POINTER_BYTES); if (pReader->status.pLDataIterArray == NULL) { terrno = TSDB_CODE_OUT_OF_MEMORY; goto _err; } pReader->flag = READER_STATUS_SUSPEND; if (countOnly) { pReader->info.readMode = READ_MODE_COUNT_ONLY; } pReader->pIgnoreTables = pIgnoreTables; tsdbDebug("%p total numOfTable:%d, window:%" PRId64 " - %" PRId64 ", verRange:%" PRId64 " - %" PRId64 " in this query %s", pReader, numOfTables, pReader->info.window.skey, pReader->info.window.ekey, pReader->info.verRange.minVer, pReader->info.verRange.maxVer, pReader->idStr); return code; _err: tsdbError("failed to create data reader, code:%s %s", tstrerror(code), idstr); tsdbReaderClose2(*ppReader); *ppReader = NULL; // reset the pointer value. return code; } void tsdbReaderClose2(STsdbReader* pReader) { if (pReader == NULL) { return; } tsdbAcquireReader(pReader); { if (pReader->innerReader[0] != NULL || pReader->innerReader[1] != NULL) { STsdbReader* p = pReader->innerReader[0]; clearSharedPtr(p); p = pReader->innerReader[1]; clearSharedPtr(p); tsdbReaderClose2(pReader->innerReader[0]); tsdbReaderClose2(pReader->innerReader[1]); } } SBlockLoadSuppInfo* pSupInfo = &pReader->suppInfo; TARRAY2_DESTROY(&pSupInfo->colAggArray, NULL); for (int32_t i = 0; i < pSupInfo->numOfCols; ++i) { if (pSupInfo->buildBuf[i] != NULL) { taosMemoryFreeClear(pSupInfo->buildBuf[i]); } } if (pReader->resBlockInfo.freeBlock) { pReader->resBlockInfo.pResBlock = blockDataDestroy(pReader->resBlockInfo.pResBlock); } taosMemoryFree(pSupInfo->colId); tBlockDataDestroy(&pReader->status.fileBlockData); cleanupDataBlockIterator(&pReader->status.blockIter); size_t numOfTables = tSimpleHashGetSize(pReader->status.pTableMap); if (pReader->status.pTableMap != NULL) { destroyAllBlockScanInfo(pReader->status.pTableMap); clearBlockScanInfoBuf(&pReader->blockInfoBuf); pReader->status.pTableMap = NULL; } if (pReader->pFileReader != NULL) { tsdbDataFileReaderClose(&pReader->pFileReader); } qTrace("tsdb/reader-close: %p, untake snapshot", pReader); tsdbUntakeReadSnap2(pReader, pReader->pReadSnap, true); pReader->pReadSnap = NULL; tsdbReleaseReader(pReader); tsdbUninitReaderLock(pReader); SCostSummary* pCost = &pReader->cost; SFilesetIter* pFilesetIter = &pReader->status.fileIter; if (pFilesetIter->pLastBlockReader != NULL) { SLastBlockReader* pLReader = pFilesetIter->pLastBlockReader; tMergeTreeClose(&pLReader->mergeTree); taosMemoryFree(pLReader); } destroySttBlockReader(pReader->status.pLDataIterArray, &pCost->sttCost); taosMemoryFreeClear(pReader->status.uidList.tableUidList); 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, sttBlocks:%" PRId64 ", sttBlocks-time:%.2f ms, sttStatisBlock:%" PRId64 ", stt-statis-Block-time:%.2f ms, composed-blocks:%" PRId64 ", composed-blocks-time:%.2fms, STableBlockScanInfo size:%.2f Kb, createTime:%.2f ms,createSkylineIterTime:%.2f " "ms, initLastBlockReader:%.2fms, %s", pReader, pCost->headFileLoad, pCost->headFileLoadTime, pCost->smaDataLoad, pCost->smaLoadTime, pCost->numOfBlocks, pCost->blockLoadTime, pCost->buildmemBlock, pCost->sttCost.loadBlocks, pCost->sttCost.blockElapsedTime, pCost->sttCost.loadStatisBlocks, pCost->sttCost.statisElapsedTime, pCost->composedBlocks, pCost->buildComposedBlockTime, numOfTables * sizeof(STableBlockScanInfo) / 1000.0, pCost->createScanInfoList, pCost->createSkylineIterTime, pCost->initLastBlockReader, pReader->idStr); taosMemoryFree(pReader->idStr); tsdbRowMergerCleanup(&pReader->status.merger); taosMemoryFree(pReader->info.pSchema); tSimpleHashCleanup(pReader->pSchemaMap); taosMemoryFreeClear(pReader); } int32_t tsdbReaderSuspend2(STsdbReader* pReader) { // save reader's base state & reset top state to be reconstructed from base state int32_t code = 0; 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; } tsdbDataFileReaderClose(&pReader->pFileReader); SCostSummary* pCost = &pReader->cost; pReader->status.pLDataIterArray = destroySttBlockReader(pReader->status.pLDataIterArray, &pCost->sttCost); pReader->status.pLDataIterArray = taosArrayInit(4, POINTER_BYTES); // resetDataBlockScanInfo excluding lastKey STableBlockScanInfo** p = NULL; int32_t iter = 0; while ((p = tSimpleHashIterate(pStatus->pTableMap, p, &iter)) != 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->pFileDelData = taosArrayDestroy(pInfo->pFileDelData); } } else { // resetDataBlockScanInfo excluding lastKey STableBlockScanInfo** p = NULL; int32_t iter = 0; while ((p = tSimpleHashIterate(pStatus->pTableMap, p, &iter)) != 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); } pBlockScanInfo = pStatus->pTableIter == NULL ? NULL : *pStatus->pTableIter; if (pBlockScanInfo) { // save lastKey to restore memory iterator STimeWindow w = pReader->resBlockInfo.pResBlock->info.window; pBlockScanInfo->lastKey = ASCENDING_TRAVERSE(pReader->info.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); // TODO: keep skyline for reuse pBlockScanInfo->delSkyline = taosArrayDestroy(pBlockScanInfo->delSkyline); } } tsdbUntakeReadSnap2(pReader, pReader->pReadSnap, false); pReader->pReadSnap = NULL; pReader->flag = READER_STATUS_SUSPEND; 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->flag == READER_STATUS_SUSPEND) { tsdbReleaseReader(pReader); return code; } tsdbReaderSuspend2(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 tsdbReaderResume2(STsdbReader* pReader) { int32_t code = 0; STableBlockScanInfo** pBlockScanInfo = pReader->status.pTableIter; // restore reader's state // task snapshot int32_t numOfTables = tSimpleHashGetSize(pReader->status.pTableMap); if (numOfTables > 0) { qTrace("tsdb/reader: %p, take snapshot", pReader); code = tsdbTakeReadSnap2(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->resBlockInfo.capacity = 1; setSharedPtr(pPrevReader, pReader); pNextReader->resBlockInfo.capacity = 1; setSharedPtr(pNextReader, pReader); code = doOpenReaderImpl(pPrevReader); if (code != TSDB_CODE_SUCCESS) { return code; } } } pReader->flag = READER_STATUS_NORMAL; 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 tsdbReadRowsCountOnly(STsdbReader* pReader) { int32_t code = TSDB_CODE_SUCCESS; SSDataBlock* pBlock = pReader->resBlockInfo.pResBlock; if (pReader->status.loadFromFile == false) { return false; } code = readRowsCountFromFiles(pReader); if (code != TSDB_CODE_SUCCESS) { return false; } code = readRowsCountFromMem(pReader); if (code != TSDB_CODE_SUCCESS) { return false; } pBlock->info.rows = pReader->rowsNum; pBlock->info.id.uid = 0; pBlock->info.dataLoad = 0; pReader->rowsNum = 0; return pBlock->info.rows > 0; } static int32_t doTsdbNextDataBlock2(STsdbReader* pReader, bool* hasNext) { int32_t code = TSDB_CODE_SUCCESS; // cleanup the data that belongs to the previous data block SSDataBlock* pBlock = pReader->resBlockInfo.pResBlock; blockDataCleanup(pBlock); *hasNext = false; SReaderStatus* pStatus = &pReader->status; if (tSimpleHashGetSize(pStatus->pTableMap) == 0) { return code; } if (READ_MODE_COUNT_ONLY == pReader->info.readMode) { return tsdbReadRowsCountOnly(pReader); } if (pStatus->loadFromFile) { code = buildBlockFromFiles(pReader); if (code != TSDB_CODE_SUCCESS) { return code; } if (pBlock->info.rows <= 0) { resetTableListIndex(&pReader->status); code = buildBlockFromBufferSequentially(pReader); } } else { // no data in files, let's try the buffer code = buildBlockFromBufferSequentially(pReader); } *hasNext = pBlock->info.rows > 0; return code; } int32_t tsdbNextDataBlock2(STsdbReader* pReader, bool* hasNext) { int32_t code = TSDB_CODE_SUCCESS; *hasNext = false; if (isEmptyQueryTimeWindow(&pReader->info.window) || pReader->step == EXTERNAL_ROWS_NEXT || pReader->code != TSDB_CODE_SUCCESS) { return (pReader->code != TSDB_CODE_SUCCESS) ? pReader->code : code; } SReaderStatus* pStatus = &pReader->status; code = tsdbAcquireReader(pReader); qTrace("tsdb/read: %p, take read mutex, code: %d", pReader, code); if (pReader->flag == READER_STATUS_SUSPEND) { code = tsdbReaderResume2(pReader); if (code != TSDB_CODE_SUCCESS) { tsdbReleaseReader(pReader); return code; } } if (pReader->innerReader[0] != NULL && pReader->step == 0) { code = doTsdbNextDataBlock2(pReader->innerReader[0], hasNext); if (code) { tsdbReleaseReader(pReader); return code; } pReader->step = EXTERNAL_ROWS_PREV; if (*hasNext) { pStatus = &pReader->innerReader[0]->status; if (pStatus->composedDataBlock) { qTrace("tsdb/read: %p, unlock read mutex", pReader); tsdbReleaseReader(pReader); } return code; } } 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]->info.window.ekey, step); if (code != TSDB_CODE_SUCCESS) { return code; } pReader->step = EXTERNAL_ROWS_MAIN; } code = doTsdbNextDataBlock2(pReader, hasNext); if (code != TSDB_CODE_SUCCESS) { tsdbReleaseReader(pReader); return code; } if (*hasNext) { if (pStatus->composedDataBlock) { qTrace("tsdb/read: %p, unlock read mutex", pReader); tsdbReleaseReader(pReader); } return code; } 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->info.window.ekey, step); if (code != TSDB_CODE_SUCCESS) { return code; } code = doTsdbNextDataBlock2(pReader->innerReader[1], hasNext); if (code != TSDB_CODE_SUCCESS) { tsdbReleaseReader(pReader); return code; } pReader->step = EXTERNAL_ROWS_NEXT; if (*hasNext) { pStatus = &pReader->innerReader[1]->status; if (pStatus->composedDataBlock) { qTrace("tsdb/read: %p, unlock read mutex", pReader); tsdbReleaseReader(pReader); } return code; } } qTrace("tsdb/read: %p, unlock read mutex", pReader); tsdbReleaseReader(pReader); return code; } 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)TARRAY2_SIZE(&pSup->colAggArray); TARRAY2_INSERT_PTR(&pSup->colAggArray, 0, pTsAgg); size++; while (j < numOfCols && i < size) { SColumnDataAgg* pAgg = &pSup->colAggArray.data[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}; TARRAY2_INSERT_PTR(&pSup->colAggArray, i, &nullColAgg); i += 1; size++; } j += 1; } } while (j < numOfCols) { if (pSup->colId[j] != PRIMARYKEY_TIMESTAMP_COL_ID) { SColumnDataAgg nullColAgg = {.colId = pSup->colId[j], .numOfNull = numOfRows}; TARRAY2_INSERT_PTR(&pSup->colAggArray, i, &nullColAgg); i += 1; } j++; } } int32_t tsdbRetrieveDatablockSMA2(STsdbReader* pReader, SSDataBlock* pDataBlock, bool* allHave, bool* hasNullSMA) { 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; SSDataBlock* pResBlock = pReader->resBlockInfo.pResBlock; if (pResBlock->info.id.uid != pFBlock->uid) { return TSDB_CODE_SUCCESS; } // int64_t st = taosGetTimestampUs(); TARRAY2_CLEAR(&pSup->colAggArray, 0); code = tsdbDataFileReadBlockSma(pReader->pFileReader, &pFBlock->record, &pSup->colAggArray); 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; } if (pSup->colAggArray.size > 0) { *allHave = true; } else { *pBlockSMA = NULL; return TSDB_CODE_SUCCESS; } // always load the first primary timestamp column data SColumnDataAgg* pTsAgg = &pSup->tsColAgg; pTsAgg->numOfNull = 0; pTsAgg->colId = PRIMARYKEY_TIMESTAMP_COL_ID; pTsAgg->min = pResBlock->info.window.skey; pTsAgg->max = pResBlock->info.window.ekey; // update the number of NULL data rows size_t numOfCols = pSup->numOfCols; 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, pFBlock->record.numRow, numOfCols, pTsAgg); size_t size = pSup->colAggArray.size; int32_t i = 0, j = 0; while (j < numOfCols && i < size) { SColumnDataAgg* pAgg = &pSup->colAggArray.data[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) { pResBlock->pBlockAgg[pSup->slotId[j]] = NULL; *allHave = false; j += 1; } } *pBlockSMA = pResBlock->pBlockAgg; pReader->cost.smaDataLoad += 1; // double elapsedTime = (taosGetTimestampUs() - st) / 1000.0; pReader->cost.smaLoadTime += 0; // elapsedTime; tsdbDebug("vgId:%d, succeed to load block SMA for uid %" PRIu64 ", %s", 0, pFBlock->uid, pReader->idStr); return code; } static SSDataBlock* doRetrieveDataBlock(STsdbReader* pReader) { SReaderStatus* pStatus = &pReader->status; int32_t code = TSDB_CODE_SUCCESS; SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(&pStatus->blockIter); if (pReader->code != TSDB_CODE_SUCCESS) { return NULL; } STableBlockScanInfo* pBlockScanInfo = getTableBlockScanInfo(pStatus->pTableMap, pBlockInfo->uid, pReader->idStr); if (pBlockScanInfo == NULL) { return NULL; } code = doLoadFileBlockData(pReader, &pStatus->blockIter, &pStatus->fileBlockData, pBlockScanInfo->uid); if (code != TSDB_CODE_SUCCESS) { tBlockDataDestroy(&pStatus->fileBlockData); terrno = code; return NULL; } code = copyBlockDataToSDataBlock(pReader); if (code != TSDB_CODE_SUCCESS) { tBlockDataDestroy(&pStatus->fileBlockData); terrno = code; return NULL; } return pReader->resBlockInfo.pResBlock; } SSDataBlock* tsdbRetrieveDataBlock2(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->resBlockInfo.pResBlock; } SSDataBlock* ret = doRetrieveDataBlock(pTReader); qTrace("tsdb/read-retrieve: %p, unlock read mutex", pReader); tsdbReleaseReader(pReader); return ret; } int32_t tsdbReaderReset2(STsdbReader* pReader, SQueryTableDataCond* pCond) { int32_t code = TSDB_CODE_SUCCESS; qTrace("tsdb/reader-reset: %p, take read mutex", pReader); tsdbAcquireReader(pReader); if (pReader->flag == READER_STATUS_SUSPEND) { code = tsdbReaderResume2(pReader); if (code != TSDB_CODE_SUCCESS) { tsdbReleaseReader(pReader); return code; } } if (isEmptyQueryTimeWindow(&pReader->info.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->info.order = pCond->order; pReader->type = TIMEWINDOW_RANGE_CONTAINED; pStatus->loadFromFile = true; pStatus->pTableIter = NULL; pReader->info.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; tsdbDataFileReaderClose(&pReader->pFileReader); int32_t numOfTables = tSimpleHashGetSize(pStatus->pTableMap); initFilesetIterator(&pStatus->fileIter, pReader->pReadSnap->pfSetArray, pReader); resetDataBlockIterator(pBlockIter, pReader->info.order); resetTableListIndex(&pReader->status); bool asc = ASCENDING_TRAVERSE(pReader->info.order); int32_t step = asc ? 1 : -1; int64_t ts = asc ? pReader->info.window.skey - 1 : pReader->info.window.ekey + 1; resetAllDataBlockScanInfo(pStatus->pTableMap, ts, step); // 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->info.window.skey, pReader->info.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->info.suid, numOfTables, pCond->twindows.skey, pReader->info.window.skey, pReader->info.window.ekey, pReader->idStr); tsdbReleaseReader(pReader); return code; } static int32_t getBucketIndex(int32_t startRow, int32_t bucketRange, int32_t numOfRows, int32_t numOfBucket) { if (numOfRows < startRow) { return 0; } int32_t bucketIndex = ((numOfRows - startRow) / bucketRange); if (bucketIndex == numOfBucket) { bucketIndex -= 1; } return bucketIndex; } int32_t tsdbGetFileBlocksDistInfo2(STsdbReader* pReader, STableBlockDistInfo* pTableBlockInfo) { int32_t code = TSDB_CODE_SUCCESS; pTableBlockInfo->totalSize = 0; pTableBlockInfo->totalRows = 0; pTableBlockInfo->numOfVgroups = 1; const int32_t numOfBuckets = 20.0; const int32_t defaultRows = 4096; // find the start data block in file tsdbAcquireReader(pReader); if (pReader->flag == READER_STATUS_SUSPEND) { code = tsdbReaderResume2(pReader); if (code != TSDB_CODE_SUCCESS) { tsdbReleaseReader(pReader); return code; } } 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)) / numOfBuckets); pTableBlockInfo->numOfFiles += 1; int32_t numOfTables = (int32_t)tSimpleHashGetSize(pStatus->pTableMap); 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) { SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter); int32_t numOfRows = pBlockInfo->record.numRow; 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 += pBlockInfo->record.blockSize; int32_t bucketIndex = getBucketIndex(pTableBlockInfo->defMinRows, bucketRange, numOfRows, numOfBuckets); 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 tsdbGetNumOfRowsInMemTable2(STsdbReader* pReader) { int32_t code = TSDB_CODE_SUCCESS; int64_t rows = 0; SReaderStatus* pStatus = &pReader->status; tsdbAcquireReader(pReader); if (pReader->flag == READER_STATUS_SUSPEND) { code = tsdbReaderResume2(pReader); if (code != TSDB_CODE_SUCCESS) { tsdbReleaseReader(pReader); return code; } } int32_t iter = 0; pStatus->pTableIter = tSimpleHashIterate(pStatus->pTableMap, NULL, &iter); while (pStatus->pTableIter != NULL) { STableBlockScanInfo* pBlockScanInfo = *(STableBlockScanInfo**)pStatus->pTableIter; STbData* d = NULL; if (pReader->pReadSnap->pMem != NULL) { d = tsdbGetTbDataFromMemTable(pReader->pReadSnap->pMem, pReader->info.suid, pBlockScanInfo->uid); if (d != NULL) { rows += tsdbGetNRowsInTbData(d); } } STbData* di = NULL; if (pReader->pReadSnap->pIMem != NULL) { di = tsdbGetTbDataFromMemTable(pReader->pReadSnap->pIMem, pReader->info.suid, pBlockScanInfo->uid); if (di != NULL) { rows += tsdbGetNRowsInTbData(di); } } // current table is exhausted, let's try the next table pStatus->pTableIter = tSimpleHashIterate(pStatus->pTableMap, pStatus->pTableIter, &iter); } tsdbReleaseReader(pReader); return rows; } int32_t tsdbGetTableSchema2(void* pVnode, int64_t uid, STSchema** pSchema, int64_t* suid) { SMetaReader mr = {0}; metaReaderDoInit(&mr, ((SVnode*)pVnode)->pMeta, 0); int32_t code = metaReaderGetTableEntryByUidCache(&mr, uid); if (code != TSDB_CODE_SUCCESS) { terrno = TSDB_CODE_TDB_INVALID_TABLE_ID; metaReaderClear(&mr); return terrno; } *suid = 0; // only child table and ordinary table is allowed, super table is not allowed. if (mr.me.type == TSDB_CHILD_TABLE) { tDecoderClear(&mr.coder); *suid = mr.me.ctbEntry.suid; code = metaReaderGetTableEntryByUidCache(&mr, *suid); if (code != TSDB_CODE_SUCCESS) { terrno = TSDB_CODE_TDB_INVALID_TABLE_ID; metaReaderClear(&mr); return terrno; } } else if (mr.me.type == TSDB_NORMAL_TABLE) { // do nothing } else { terrno = TSDB_CODE_INVALID_PARA; metaReaderClear(&mr); return terrno; } metaReaderClear(&mr); // get the newest table schema version code = metaGetTbTSchemaEx(((SVnode*)pVnode)->pMeta, *suid, uid, -1, pSchema); return code; } int32_t tsdbTakeReadSnap2(STsdbReader* pReader, _query_reseek_func_t reseek, STsdbReadSnap** ppSnap) { int32_t code = 0; STsdb* pTsdb = pReader->pTsdb; SVersionRange* pRange = &pReader->info.verRange; // lock taosThreadRwlockRdlock(&pTsdb->rwLock); // alloc STsdbReadSnap* pSnap = (STsdbReadSnap*)taosMemoryCalloc(1, sizeof(STsdbReadSnap)); if (pSnap == NULL) { code = TSDB_CODE_OUT_OF_MEMORY; goto _exit; } // 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 = tsdbFSCreateRefSnapshot(pTsdb->pFS, &pSnap->pfSetArray); 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 tsdbUntakeReadSnap2(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); tsdbFSDestroyRefSnapshot(&pSnap->pfSetArray); taosMemoryFree(pSnap); } tsdbTrace("vgId:%d, untake read snapshot", TD_VID(pTsdb->pVnode)); } // if failed, do nothing void tsdbReaderSetId2(STsdbReader* pReader, const char* idstr) { taosMemoryFreeClear(pReader->idStr); pReader->idStr = taosStrdup(idstr); pReader->status.fileIter.pLastBlockReader->mergeTree.idStr = pReader->idStr; } void tsdbReaderSetCloseFlag2(STsdbReader* pReader) { pReader->code = TSDB_CODE_TSC_QUERY_CANCELLED; }