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throw Decimal overflow for Inf and NaN

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This commit is contained in:
chertus 2019-05-15 15:28:44 +03:00
parent 98359a6a09
commit 02f01a5104
2 changed files with 16 additions and 0 deletions
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6
dbms/src/DataTypes/DataTypesDecimal.h
View File

@ -1,4 +1,6 @@
#pragma once
#include <cmath>
#include <common/arithmeticOverflow.h>
#include <Common/typeid_cast.h>
#include <Columns/ColumnDecimal.h>
@ -318,7 +320,11 @@ convertToDecimal(const typename FromDataType::FieldType & value, UInt32 scale)
using FromFieldType = typename FromDataType::FieldType;
if constexpr (std::is_floating_point_v<FromFieldType>)
{
if (std::isinf(value) || std::isnan(value))
throw Exception("Decimal convert overflow. Cannot convert infinity or NaN into decimal", ErrorCodes::DECIMAL_OVERFLOW);
return value * ToDataType::getScaleMultiplier(scale);
}
else
{
if constexpr (std::is_same_v<FromFieldType, UInt64>)

10
dbms/tests/queries/0_stateless/00700_decimal_casts.sql
View File

@ -240,3 +240,13 @@ SELECT toUInt64('9223372036854775809') AS x, toDecimal64(x, 0); -- { serverError
SELECT toDecimal32(0, rowNumberInBlock()); -- { serverError 44 }
SELECT toDecimal64(0, rowNumberInBlock()); -- { serverError 44 }
SELECT toDecimal128(0, rowNumberInBlock()); -- { serverError 44 }
SELECT toDecimal32(1/0, 0); -- { serverError 407 }
SELECT toDecimal64(1/0, 1); -- { serverError 407 }
SELECT toDecimal128(0/0, 2); -- { serverError 407 }
SELECT CAST(1/0, 'Decimal(9, 0)'); -- { serverError 407 }
SELECT CAST(1/0, 'Decimal(18, 1)'); -- { serverError 407 }
SELECT CAST(1/0, 'Decimal(38, 2)'); -- { serverError 407 }
SELECT CAST(0/0, 'Decimal(9, 3)'); -- { serverError 407 }
SELECT CAST(0/0, 'Decimal(18, 4)'); -- { serverError 407 }
SELECT CAST(0/0, 'Decimal(38, 5)'); -- { serverError 407 }