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#pragma once
#include "column.h"
namespace NClickHouse {
/**
* Represents various numeric columns.
*/
template <typename T>
class TColumnVector: public TColumn {
public:
static TIntrusivePtr<TColumnVector<T>> Create();
static TIntrusivePtr<TColumnVector<T>> Create(const TVector<T>& data);
static TIntrusivePtr<TColumnVector<T>> Create(TVector<T>&& data);
/// Appends one element to the end of column.
void Append(const T& value);
/// Returns element at given row number.
const T& At(size_t n) const;
/// Returns element at given row number.
const T& operator[](size_t n) const;
/// Set element at given row number.
void SetAt(size_t n, const T& value);
public:
/// Appends content of given column to the end of current one.
void Append(TColumnRef column) override;
/// Loads column data from input stream.
bool Load(TCodedInputStream* input, size_t rows) override;
/// Saves column data to output stream.
void Save(TCodedOutputStream* output) override;
/// Returns count of rows in the column.
size_t Size() const override;
/// Makes slice of the current column.
TColumnRef Slice(size_t begin, size_t len) override;
private:
TColumnVector();
TColumnVector(const TVector<T>& data);
TColumnVector(TVector<T>&& data);
TVector<T> Data_;
};
using TColumnUInt8 = TColumnVector<ui8>;
using TColumnUInt16 = TColumnVector<ui16>;
using TColumnUInt32 = TColumnVector<ui32>;
using TColumnUInt64 = TColumnVector<ui64>;
using TColumnInt8 = TColumnVector<i8>;
using TColumnInt16 = TColumnVector<i16>;
using TColumnInt32 = TColumnVector<i32>;
using TColumnInt64 = TColumnVector<i64>;
using TColumnFloat32 = TColumnVector<float>;
using TColumnFloat64 = TColumnVector<double>;
}
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