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Merge pull request #4751 from taosdata/hotfix/TD-2583 

[TD-2583]<fix>:function min gets  result value zero  when column values contain NULL
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haojun Liao 2020-12-31 14:34:49 +08:00 committed by GitHub
parent 2a534143cf ee602ffb66
commit cbdabcd561
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1 changed files with 4 additions and 0 deletions
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src/client/src/tscFunctionImpl.c
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@ -921,6 +921,10 @@ static void minMax_function(SQLFunctionCtx *pCtx, char *pOutput, int32_t isMin,
*notNullElems = pCtx->size - pCtx->preAggVals.statis.numOfNull;
assert(*notNullElems >= 0);
if (*notNullElems == 0){
return;
}
void * tval = NULL;
int16_t index = 0;