ClickHouse/dbms/DataTypes/DataTypeString.h
Ivan 97f2a2213e
Move all folders inside /dbms one level up (#9974)
* Move some code outside dbms/src folder
* Fix paths
2020-04-02 02:51:21 +03:00

69 lines
3.1 KiB
C++

#pragma once
#include <ostream>
#include <DataTypes/IDataType.h>
namespace DB
{
class DataTypeString final : public IDataType
{
public:
using FieldType = String;
static constexpr bool is_parametric = false;
const char * getFamilyName() const override
{
return "String";
}
TypeIndex getTypeId() const override { return TypeIndex::String; }
void serializeBinary(const Field & field, WriteBuffer & ostr) const override;
void deserializeBinary(Field & field, ReadBuffer & istr) const override;
void serializeBinary(const IColumn & column, size_t row_num, WriteBuffer & ostr) const override;
void deserializeBinary(IColumn & column, ReadBuffer & istr) const override;
void serializeBinaryBulk(const IColumn & column, WriteBuffer & ostr, size_t offset, size_t limit) const override;
void deserializeBinaryBulk(IColumn & column, ReadBuffer & istr, size_t limit, double avg_value_size_hint) const override;
void serializeText(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
void deserializeWholeText(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
void serializeTextEscaped(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
void deserializeTextEscaped(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
void serializeTextQuoted(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
void deserializeTextQuoted(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
void serializeTextJSON(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
void deserializeTextJSON(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
void serializeTextXML(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
void serializeTextCSV(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings &) const override;
void deserializeTextCSV(IColumn & column, ReadBuffer & istr, const FormatSettings &) const override;
void serializeProtobuf(const IColumn & column, size_t row_num, ProtobufWriter & protobuf, size_t & value_index) const override;
void deserializeProtobuf(IColumn & column, ProtobufReader & protobuf, bool allow_add_row, bool & row_added) const override;
MutableColumnPtr createColumn() const override;
Field getDefault() const override;
bool equals(const IDataType & rhs) const override;
bool isParametric() const override { return false; }
bool haveSubtypes() const override { return false; }
bool isComparable() const override { return true; }
bool canBeComparedWithCollation() const override { return true; }
bool isValueUnambiguouslyRepresentedInContiguousMemoryRegion() const override { return true; }
bool isCategorial() const override { return true; }
bool canBeInsideNullable() const override { return true; }
bool canBeInsideLowCardinality() const override { return true; }
};
}