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MCOL-719 Add date/datetime to func_least/greatest

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Support was missing and int casting caused unexpected results
This commit is contained in:
Andrew Hutchings
2017-05-17 10:35:50 +01:00
parent b3c6229915
commit 21fe9e8faf
3 changed files with 96 additions and 0 deletions
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38
utils/funcexp/func_greatest.cpp
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@ -159,6 +159,44 @@ IDB_Decimal Func_greatest::getDecimalVal(Row& row,
return greatestStr;
}
int32_t Func_greatest::getDateIntVal(rowgroup::Row& row,
FunctionParm& fp,
bool& isNull,
execplan::CalpontSystemCatalog::ColType& ct)
{
int32_t str = fp[0]->data()->getDateIntVal(row, isNull);
int32_t greatestStr = str;
for (uint32_t i = 1; i < fp.size(); i++)
{
int32_t str1 = fp[i]->data()->getDateIntVal(row, isNull);
if ( greatestStr < str1 )
greatestStr = str1;
}
return greatestStr;
}
int64_t Func_greatest::getDatetimeIntVal(rowgroup::Row& row,
FunctionParm& fp,
bool& isNull,
execplan::CalpontSystemCatalog::ColType& ct)
{
int64_t str = fp[0]->data()->getDatetimeIntVal(row, isNull);
int64_t greatestStr = str;
for (uint32_t i = 1; i < fp.size(); i++)
{
int64_t str1 = fp[i]->data()->getDatetimeIntVal(row, isNull);
if ( greatestStr < str1 )
greatestStr = str1;
}
return greatestStr;
}
} // namespace funcexp
// vim:ts=4 sw=4: