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fix(query): fix leastsquares c0+null and also group by output has empty 

result

TD-16136
This commit is contained in:
Ganlin Zhao 2022-05-31 09:31:30 -04:00
parent 11e55389b1
commit 34d8d05449
1 changed files with 6 additions and 1 deletions
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7
source/libs/function/src/builtinsimpl.c
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@ -1754,6 +1754,11 @@ int32_t leastSQRFunction(SqlFunctionCtx* pCtx) {
}
break;
}
case TSDB_DATA_TYPE_NULL: {
GET_RES_INFO(pCtx)->isNullRes = 1;
numOfElem = 1;
break;
}
default:
break;
@ -1797,7 +1802,7 @@ int32_t leastSQRFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
size_t len = snprintf(varDataVal(buf), sizeof(buf) - VARSTR_HEADER_SIZE, "{slop:%.6lf, intercept:%.6lf}", param[0][2], param[1][2]);
varDataSetLen(buf, len);
colDataAppend(pCol, currentRow, buf, false);
colDataAppend(pCol, currentRow, buf, pResInfo->isNullRes);
return pResInfo->numOfRes;
}