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MCOL-641 Add support for functions (Part 1).

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This commit is contained in:
Gagan Goel
2020-04-19 23:27:43 -04:00
committed by Roman Nozdrin
parent 554c6da8e8
commit cfe35b5c7f
28 changed files with 2102 additions and 462 deletions
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22
dbcon/execplan/functioncolumn.h
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@ -256,14 +256,24 @@ public:
(datatypes::Decimal::isWideDecimalType(decimal.precision)) ?
decimal.s128Value : decimal.value;
int128_t scaleMultiplier, result;
int128_t scaleMultiplier;
int32_t scaleDiff = fResultType.scale - decimal.scale;
datatypes::getScaleDivisor(scaleMultiplier, abs(scaleDiff));
// WIP MCOL-641 Unconditionall overflow check
datatypes::MultiplicationOverflowCheck mul;
decimal.s128Value = (scaleDiff > 0
&& mul(decimal.s128Value, scaleMultiplier, result))
? result : decimal.s128Value / scaleMultiplier;
if (scaleMultiplier > 1)
{
if (scaleDiff > 0)
{
// WIP MCOL-641 Unconditionall overflow check
datatypes::MultiplicationNoOverflowCheck mul;
mul(decimal.s128Value, scaleMultiplier, decimal.s128Value);
}
else
{
decimal.s128Value = (int128_t)(decimal.s128Value > 0 ?
(__float128)decimal.s128Value / scaleMultiplier + 0.5 :
(__float128)decimal.s128Value / scaleMultiplier - 0.5);
}
}
}
else if (fResultType.colWidth == utils::MAXLEGACYWIDTH)
{