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未验证 提交 3969c001 编写于 作者: G Ganlin Zhao 提交者： GitHub
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Merge pull request #13997 from taosdata/fix/TD-16656 

fix(query): fix stddev function floating point NaN value
上级 3f702941 a79f4a6e
隐藏空白更改
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Showing with 3 addition and 3 deletion
source/libs/function/src/builtinsimpl.c
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...@@ -1745,10 +1745,10 @@ int32_t stddevFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) { ...@@ -1745,10 +1745,10 @@ int32_t stddevFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
if (IS_INTEGER_TYPE(type)) { if (IS_INTEGER_TYPE(type)) {
avg = pStddevRes->isum / ((double)pStddevRes->count); avg = pStddevRes->isum / ((double)pStddevRes->count);
pStddevRes->result = sqrt(pStddevRes->quadraticISum / ((double)pStddevRes->count) - avg * avg); pStddevRes->result = sqrt(fabs(pStddevRes->quadraticISum / ((double)pStddevRes->count) - avg * avg));
} else { } else {
avg = pStddevRes->dsum / ((double)pStddevRes->count); avg = pStddevRes->dsum / ((double)pStddevRes->count);
pStddevRes->result = sqrt(pStddevRes->quadraticDSum / ((double)pStddevRes->count) - avg * avg); pStddevRes->result = sqrt(fabs(pStddevRes->quadraticDSum / ((double)pStddevRes->count) - avg * avg));
} }
return functionFinalize(pCtx, pBlock); return functionFinalize(pCtx, pBlock);
...@@ -5362,4 +5362,4 @@ int32_t interpFunction(SqlFunctionCtx* pCtx) { ...@@ -5362,4 +5362,4 @@ int32_t interpFunction(SqlFunctionCtx* pCtx) {
#endif #endif
return TSDB_CODE_SUCCESS; return TSDB_CODE_SUCCESS;
} }
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