ClickHouse/src/DataTypes/DataTypesNumber.cpp

91 lines
4.6 KiB
C++

#include <DataTypes/DataTypesNumber.h>
#include <DataTypes/DataTypeFactory.h>
#include <Parsers/IAST.h>
namespace DB
{
namespace ErrorCodes
{
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
}
template <typename T>
static DataTypePtr createNumericDataType(const ASTPtr & arguments)
{
if (arguments)
{
if (std::is_integral_v<T>)
{
if (arguments->children.size() > 1)
throw Exception(String(TypeName<T>::get()) + " data type family must not have more than one argument - display width", ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
}
else
{
if (arguments->children.size() > 2)
throw Exception(String(TypeName<T>::get()) + " data type family must not have more than two arguments - total number of digits and number of digits following the decimal point", ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH);
}
}
return std::make_shared<DataTypeNumber<T>>();
}
void registerDataTypeNumbers(DataTypeFactory & factory)
{
factory.registerDataType("UInt8", createNumericDataType<UInt8>);
factory.registerDataType("UInt16", createNumericDataType<UInt16>);
factory.registerDataType("UInt32", createNumericDataType<UInt32>);
factory.registerDataType("UInt64", createNumericDataType<UInt64>);
factory.registerDataType("Int8", createNumericDataType<Int8>);
factory.registerDataType("Int16", createNumericDataType<Int16>);
factory.registerDataType("Int32", createNumericDataType<Int32>);
factory.registerDataType("Int64", createNumericDataType<Int64>);
factory.registerDataType("Float32", createNumericDataType<Float32>);
factory.registerDataType("Float64", createNumericDataType<Float64>);
factory.registerSimpleDataType("UInt256", [] { return DataTypePtr(std::make_shared<DataTypeUInt256>()); });
factory.registerSimpleDataType("Int128", [] { return DataTypePtr(std::make_shared<DataTypeInt128>()); });
factory.registerSimpleDataType("Int256", [] { return DataTypePtr(std::make_shared<DataTypeInt256>()); });
/// These synonyms are added for compatibility.
factory.registerAlias("TINYINT", "Int8", DataTypeFactory::CaseInsensitive);
factory.registerAlias("BOOL", "Int8", DataTypeFactory::CaseInsensitive);
factory.registerAlias("BOOLEAN", "Int8", DataTypeFactory::CaseInsensitive);
factory.registerAlias("INT1", "Int8", DataTypeFactory::CaseInsensitive); /// MySQL
factory.registerAlias("BYTE", "Int8", DataTypeFactory::CaseInsensitive); /// MS Access
factory.registerAlias("SMALLINT", "Int16", DataTypeFactory::CaseInsensitive);
factory.registerAlias("INT", "Int32", DataTypeFactory::CaseInsensitive);
factory.registerAlias("INTEGER", "Int32", DataTypeFactory::CaseInsensitive);
factory.registerAlias("BIGINT", "Int64", DataTypeFactory::CaseInsensitive);
factory.registerAlias("FLOAT", "Float32", DataTypeFactory::CaseInsensitive);
factory.registerAlias("REAL", "Float32", DataTypeFactory::CaseInsensitive);
factory.registerAlias("SINGLE", "Float32", DataTypeFactory::CaseInsensitive); /// MS Access
factory.registerAlias("DOUBLE", "Float64", DataTypeFactory::CaseInsensitive);
factory.registerAlias("MEDIUMINT", "Int32", DataTypeFactory::CaseInsensitive); /// MySQL
factory.registerAlias("DOUBLE PRECISION", "Float64", DataTypeFactory::CaseInsensitive);
/// MySQL
factory.registerAlias("TINYINT SIGNED", "Int8", DataTypeFactory::CaseInsensitive);
factory.registerAlias("INT1 SIGNED", "Int8", DataTypeFactory::CaseInsensitive);
factory.registerAlias("SMALLINT SIGNED", "Int16", DataTypeFactory::CaseInsensitive);
factory.registerAlias("MEDIUMINT SIGNED", "Int32", DataTypeFactory::CaseInsensitive);
factory.registerAlias("INT SIGNED", "Int32", DataTypeFactory::CaseInsensitive);
factory.registerAlias("INTEGER SIGNED", "Int32", DataTypeFactory::CaseInsensitive);
factory.registerAlias("BIGINT SIGNED", "Int64", DataTypeFactory::CaseInsensitive);
factory.registerAlias("TINYINT UNSIGNED", "UInt8", DataTypeFactory::CaseInsensitive);
factory.registerAlias("INT1 UNSIGNED", "UInt8", DataTypeFactory::CaseInsensitive);
factory.registerAlias("SMALLINT UNSIGNED", "UInt16", DataTypeFactory::CaseInsensitive);
factory.registerAlias("MEDIUMINT UNSIGNED", "UInt32", DataTypeFactory::CaseInsensitive);
factory.registerAlias("INT UNSIGNED", "UInt32", DataTypeFactory::CaseInsensitive);
factory.registerAlias("INTEGER UNSIGNED", "UInt32", DataTypeFactory::CaseInsensitive);
factory.registerAlias("BIGINT UNSIGNED", "UInt64", DataTypeFactory::CaseInsensitive);
}
}