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MCOL-23 Fix from_unixtime and nullif

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This commit is contained in:
David Hall
2016-05-19 17:49:23 -05:00
parent 565f5176b0
commit 0a2e7f8cd0
2 changed files with 28 additions and 2 deletions
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26
utils/funcexp/func_nullif.cpp
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@ -92,7 +92,17 @@ int64_t Func_nullif::getIntVal(rowgroup::Row& row,
}
case execplan::CalpontSystemCatalog::DATE:
{
exp2 = parm[1]->data()->getDateIntVal(row, isNull);
if (parm[0]->data()->resultType().colDataType ==
execplan::CalpontSystemCatalog::DATETIME)
{
// If we're comparing to a datetime field, promote.
exp2 = parm[0]->data()->getDatetimeIntVal(row, isNull);
}
else
{
exp2 = parm[1]->data()->getDateIntVal(row, isNull);
}
if (isNull) {
isNull = false;
return exp1;
@ -104,6 +114,20 @@ int64_t Func_nullif::getIntVal(rowgroup::Row& row,
case execplan::CalpontSystemCatalog::DATETIME:
{
exp2 = parm[1]->data()->getDatetimeIntVal(row, isNull);
if (parm[0]->data()->resultType().colDataType ==
execplan::CalpontSystemCatalog::DATE)
{
// When comparing exp1 as a Date, we can't simply promote. We have
// to be careful of the return value in case of not null return.
int64_t exp1 = parm[0]->data()->getDatetimeIntVal(row, isNull);
if ( exp1 == exp2 )
{
isNull = true;
return 0;
}
// since exp1 here is inside the block, when we leave the block, the
// original (Date) value is restored.
}
if (isNull) {
isNull = false;
return exp1;