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fix(query): reset block data when no blocks are available.

This commit is contained in:
Haojun Liao 2022-08-20 16:57:44 +08:00
parent 09ffcd2e13
commit 0dfd032068
1 changed files with 29 additions and 14 deletions
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29
source/dnode/vnode/src/tsdb/tsdbRead.c
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@ -400,7 +400,7 @@ _err:
static void resetDataBlockIterator(SDataBlockIter* pIter, int32_t order, SHashObj* pTableMap) {
pIter->order = order;
pIter->index = -1;
pIter->numOfBlocks = -1;
pIter->numOfBlocks = 0;
if (pIter->blockList == NULL) {
pIter->blockList = taosArrayInit(4, sizeof(SFileDataBlockInfo));
} else {
@ -1904,7 +1904,6 @@ static bool nextRowInLastBlock(SLastBlockReader *pLastBlockReader) {
return false;
}
bool asc = ASCENDING_TRAVERSE(pLastBlockReader->order);
*(pLastBlockReader->rowIndex) += step;
SBlockData* pBlockData = &pLastBlockReader->lastBlockData;
@ -2320,10 +2319,12 @@ static int32_t moveToNextFile(STsdbReader* pReader, SBlockNumber* pBlockNum) {
size_t numOfTables = taosHashGetSize(pReader->status.pTableMap);
SArray* pIndexList = taosArrayInit(numOfTables, sizeof(SBlockIdx));
SArray* pLastBlocks = pStatus->fileIter.pLastBlockReader->pBlockL;
while (1) {
bool hasNext = filesetIteratorNext(&pStatus->fileIter, pReader);
if (!hasNext) { // no data files on disk
taosArrayClear(pLastBlocks);
break;
}
@ -2334,7 +2335,6 @@ static int32_t moveToNextFile(STsdbReader* pReader, SBlockNumber* pBlockNum) {
return code;
}
SArray* pLastBlocks = pStatus->fileIter.pLastBlockReader->pBlockL;
code = tsdbReadBlockL(pReader->pFileReader, pLastBlocks);
if (code != TSDB_CODE_SUCCESS) {
taosArrayDestroy(pIndexList);
@ -2385,6 +2385,7 @@ static int32_t doLoadRelatedLastBlock(SLastBlockReader* pLastBlockReader, uint64
}
if (pLastBlockReader->currentBlockIndex == -1) {
tBlockDataDestroy(&pLastBlockReader->lastBlockData, false);
return TSDB_CODE_SUCCESS;
}
@ -2431,8 +2432,10 @@ static int32_t doLoadLastBlockSequentially(STsdbReader* pReader) {
return code;
}
if (pLastBlockReader->currentBlockIndex != -1) {
initLastBlockReader(pLastBlockReader, pScanInfo->uid, &pScanInfo->indexInBlockL);
if (pScanInfo->indexInBlockL == DEFAULT_ROW_INDEX_VAL || pScanInfo->indexInBlockL == pLastBlockReader->lastBlockData.nRow) {
if (pScanInfo->indexInBlockL == DEFAULT_ROW_INDEX_VAL ||
pScanInfo->indexInBlockL == pLastBlockReader->lastBlockData.nRow) {
bool hasData = nextRowInLastBlock(pLastBlockReader);
if (!hasData) { // current table does not have rows in last block, try next table
pStatus->pTableIter = taosHashIterate(pStatus->pTableMap, pStatus->pTableIter);
@ -2442,6 +2445,13 @@ static int32_t doLoadLastBlockSequentially(STsdbReader* pReader) {
continue;
}
}
} else { // no data in last block, try next table
pStatus->pTableIter = taosHashIterate(pStatus->pTableMap, pStatus->pTableIter);
if (pStatus->pTableIter == NULL) {
return TSDB_CODE_SUCCESS;
}
continue;
}
code = doBuildDataBlock(pReader);
if (code != TSDB_CODE_SUCCESS) {
@ -2491,6 +2501,11 @@ static int32_t doBuildDataBlock(STsdbReader* pReader) {
return code;
}
if (pLastBlockReader->currentBlockIndex == -1) {
// ASSERT(0);
printf("error\n");
}
initLastBlockReader(pLastBlockReader, pScanInfo->uid, &pScanInfo->indexInBlockL);
if (pScanInfo->indexInBlockL == DEFAULT_ROW_INDEX_VAL || pScanInfo->indexInBlockL == pLastBlockReader->lastBlockData.nRow) {
bool hasData = nextRowInLastBlock(pLastBlockReader);
@ -2594,7 +2609,8 @@ static int32_t initForFirstBlockInFile(STsdbReader* pReader, SDataBlockIter* pBl
if (num.numOfBlocks > 0) {
code = initBlockIterator(pReader, pBlockIter, num.numOfBlocks);
} else {
pBlockIter->numOfBlocks = 0;
tBlockDataReset(&pReader->status.fileBlockData);
resetDataBlockIterator(pBlockIter, pReader->order, pReader->status.pTableMap);
}
// set the correct start position according to the query time window
@ -2663,9 +2679,8 @@ static int32_t buildBlockFromFiles(STsdbReader* pReader) {
initBlockDumpInfo(pReader, pBlockIter);
} else if (taosArrayGetSize(pReader->status.fileIter.pLastBlockReader->pBlockL) > 0) { // data blocks in current file are exhausted, let's try the next file now
// todo dump all data in last block if exists.
pBlockIter->numOfBlocks = 0;
taosArrayClear(pBlockIter->blockList);
tBlockDataReset(&pReader->status.fileBlockData);
resetDataBlockIterator(pBlockIter, pReader->order, pReader->status.pTableMap);
goto _begin;
} else {
code = initForFirstBlockInFile(pReader, pBlockIter);