taiyang-li commented on code in PR #8351:
URL: https://github.com/apache/incubator-gluten/pull/8351#discussion_r1905071427
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cpp-ch/local-engine/Functions/SparkFunctionCheckDecimalOverflow.cpp:
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@@ -192,20 +190,62 @@ class FunctionCheckDecimalOverflow : public IFunction
result_column = std::move(col_to);
}
- template <is_decimal FromFieldType, typename ToDataType>
+ template <typename FromDataType, typename ToDataType>
requires(IsDataTypeDecimal<ToDataType>)
static bool convertToDecimalImpl(
- const FromFieldType & decimal, UInt32 precision_to, UInt32 scale_from,
UInt32 scale_to, typename ToDataType::FieldType & result)
+ const FromDataType::FieldType & value, UInt32 precision_to, UInt32
scale_from, UInt32 scale_to, typename ToDataType::FieldType & result)
{
+ using FromFieldType = typename FromDataType::FieldType;
if constexpr (std::is_same_v<FromFieldType, Decimal32>)
- return convertDecimalsImpl<DataTypeDecimal<Decimal32>,
ToDataType>(decimal, precision_to, scale_from, scale_to, result);
-
+ return convertDecimalsImpl<DataTypeDecimal<Decimal32>,
ToDataType>(value, precision_to, scale_from, scale_to, result);
else if constexpr (std::is_same_v<FromFieldType, Decimal64>)
- return convertDecimalsImpl<DataTypeDecimal<Decimal64>,
ToDataType>(decimal, precision_to, scale_from, scale_to, result);
+ return convertDecimalsImpl<DataTypeDecimal<Decimal64>,
ToDataType>(value, precision_to, scale_from, scale_to, result);
else if constexpr (std::is_same_v<FromFieldType, Decimal128>)
- return convertDecimalsImpl<DataTypeDecimal<Decimal128>,
ToDataType>(decimal, precision_to, scale_from, scale_to, result);
+ return convertDecimalsImpl<DataTypeDecimal<Decimal128>,
ToDataType>(value, precision_to, scale_from, scale_to, result);
+ else if constexpr (std::is_same_v<FromFieldType, Decimal256>)
+ return convertDecimalsImpl<DataTypeDecimal<Decimal256>,
ToDataType>(value, precision_to, scale_from, scale_to, result);
+ else if constexpr (IsDataTypeNumber<FromDataType>)
+ return convertNumberToDecimalImpl<DataTypeNumber<FromFieldType>,
ToDataType>(value, precision_to, scale_to, result);
+ else
+ throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Convert from {} type
to decimal type is not implemented.", typeid(value).name());
+ }
+
+ template <typename FromDataType, typename ToDataType>
+ requires(IsDataTypeNumber<FromDataType> && IsDataTypeDecimal<ToDataType>)
+ static bool convertNumberToDecimalImpl(
Review Comment:
ALWAYS_INLINE
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