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fix(query): clear buffer before set data.

This commit is contained in:
Haojun Liao 2022-06-22 19:40:59 +08:00
parent c79eda9f70
commit b097e78708
2 changed files with 3 additions and 1 deletions
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2
source/common/src/tdatablock.c
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@ -1201,7 +1201,7 @@ SSDataBlock* createOneDataBlock(const SSDataBlock* pDataBlock, bool copyData) {
pBlock->info.rows = 0;
pBlock->info.capacity = 0;
size_t numOfCols = taosArrayGetSize(pBlock->pDataBlock);
size_t numOfCols = taosArrayGetSize(pDataBlock->pDataBlock);
for (int32_t i = 0; i < numOfCols; ++i) {
SColumnInfoData* p = taosArrayGet(pDataBlock->pDataBlock, i);
SColumnInfoData colInfo = {.hasNull = true, .info = p->info};

2
source/libs/executor/src/executorimpl.c
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@ -2047,6 +2047,8 @@ int32_t extractDataBlockFromFetchRsp(SSDataBlock* pRes, SLoadRemoteDataInfo* pLo
int32_t compLen, int32_t numOfOutput, int64_t startTs, uint64_t* total,
SArray* pColList) {
if (pColList == NULL) { // data from other sources
blockDataCleanup(pRes);
blockDataEnsureCapacity(pRes, numOfRows);
blockCompressDecode(pRes, numOfOutput, numOfRows, pData);
pRes->info.rows = numOfRows;
} else { // extract data according to pColList