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MCOL-523 fix a merge issue, MEDIAN test for empty set.

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This commit is contained in:
David Hall
2017-08-02 12:12:00 -05:00
parent f85b3c655a
commit f428cdc371
2 changed files with 7 additions and 1 deletions
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5
utils/udfsdk/median.cpp
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@ -165,6 +165,11 @@ mcsv1_UDAF::ReturnCode median::evaluate(mcsv1Context* context, static_any::any&
{
uint64_t cnt1=0, cnt2=0;
MEDIAN_DATA& data = static_cast<MedianData*>(context->getUserData())->mData;
if (data.size() == 0)
{
valOut = (DATATYPE)0;
return mcsv1_UDAF::SUCCESS;
}
MEDIAN_DATA::iterator iter(data.begin());
MEDIAN_DATA::iterator revfrom(data.end());
MEDIAN_DATA::reverse_iterator riter(revfrom);