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Merge pull request #15647 from taosdata/fix/TD-17799 

fix(query): fix apercentile crash when result is 0 rows and used with other non-null result functions
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Ganlin Zhao 2022-08-01 19:07:56 +08:00 committed by GitHub
parent 33e9db6b32 313248cec6
commit 30ab3a1bb2
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 12 deletions
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16
source/libs/function/src/builtinsimpl.c
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@ -2662,19 +2662,11 @@ int32_t apercentilePartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
char* res = taosMemoryCalloc(resultBytes + VARSTR_HEADER_SIZE, sizeof(char));
if (pInfo->algo == APERCT_ALGO_TDIGEST) {
if (pInfo->pTDigest->size > 0) {
memcpy(varDataVal(res), pInfo, resultBytes);
varDataSetLen(res, resultBytes);
} else {
return TSDB_CODE_SUCCESS;
}
memcpy(varDataVal(res), pInfo, resultBytes);
varDataSetLen(res, resultBytes);
} else {
if (pInfo->pHisto->numOfElems > 0) {
memcpy(varDataVal(res), pInfo, resultBytes);
varDataSetLen(res, resultBytes);
} else {
return TSDB_CODE_SUCCESS;
}
memcpy(varDataVal(res), pInfo, resultBytes);
varDataSetLen(res, resultBytes);
}
int32_t slotId = pCtx->pExpr->base.resSchema.slotId;