I think the clickhouse data types could be improved

[2hangchen]

Now the clickhouse data types of only a few kinds,it can be perfected like SimpleAggregateFunction...
CH_TYPES_MAPPING = { "UInt8": IntType, "UInt16": IntType, "UInt32": IntType, "UInt64": IntType, "Int8": IntType, "Int16": IntType, "Int32": IntType, "Int64": IntType, "Float32": FloatType, "Float64": FloatType, "String": StrType, "FixedString": StrType, "Enum8": StrType, "Enum16": StrType, "Date": DateType, "DateTime": DateTimeType, "DateTime64": DateTime64Type, "Tuple": TupleType, "Array": ArrayType, "Nullable": NullableType, "Nothing": NothingType, "UUID": UUIDType, "LowCardinality": LowCardinalityType, "Decimal": DecimalType, "Decimal32": DecimalType, "Decimal64": DecimalType, "Decimal128": DecimalType, "IPv4": IPv4Type, "IPv6": IPv6Type, }

[maximdanilchenko]

Resolved with #55