mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-02 12:32:04 +00:00
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
#pragma once
|
|
|
|
#include <DB/Core/Block.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
/** Column, that is just group of few another columns.
|
|
*
|
|
* For constant Tuples, see ColumnConstTuple.
|
|
* Mixed constant/non-constant columns is prohibited in tuple
|
|
* for implementation simplicity.
|
|
*/
|
|
class ColumnTuple final : public IColumn
|
|
{
|
|
private:
|
|
Block data;
|
|
Columns columns;
|
|
|
|
template <bool positive>
|
|
struct Less;
|
|
|
|
public:
|
|
ColumnTuple() {}
|
|
ColumnTuple(Block data_);
|
|
|
|
std::string getName() const override { return "Tuple"; }
|
|
|
|
ColumnPtr cloneEmpty() const override;
|
|
|
|
size_t size() const override
|
|
{
|
|
return data.rows();
|
|
}
|
|
|
|
Field operator[](size_t n) const override;
|
|
void get(size_t n, Field & res) const override;
|
|
|
|
StringRef getDataAt(size_t n) const override;
|
|
void insertData(const char * pos, size_t length) override;
|
|
void insert(const Field & x) override;
|
|
void insertFrom(const IColumn & src_, size_t n) override;
|
|
void insertDefault() override;
|
|
void popBack(size_t n) override;
|
|
StringRef serializeValueIntoArena(size_t n, Arena & arena, char const *& begin) const override;
|
|
const char * deserializeAndInsertFromArena(const char * pos) override;
|
|
void updateHashWithValue(size_t n, SipHash & hash) const override;
|
|
void insertRangeFrom(const IColumn & src, size_t start, size_t length) override;
|
|
ColumnPtr filter(const Filter & filt, ssize_t result_size_hint) const override;
|
|
ColumnPtr permute(const Permutation & perm, size_t limit) const override;
|
|
ColumnPtr replicate(const Offsets_t & offsets) const override;
|
|
Columns scatter(ColumnIndex num_columns, const Selector & selector) const override;
|
|
int compareAt(size_t n, size_t m, const IColumn & rhs, int nan_direction_hint) const override;
|
|
void getExtremes(Field & min, Field & max) const override;
|
|
void getPermutation(bool reverse, size_t limit, int nan_direction_hint, Permutation & res) const override;
|
|
void reserve(size_t n) override;
|
|
size_t byteSize() const override;
|
|
size_t allocatedSize() const override;
|
|
ColumnPtr convertToFullColumnIfConst() const override;
|
|
|
|
const Block & getData() const { return data; }
|
|
Block & getData() { return data; }
|
|
|
|
const Columns & getColumns() const { return columns; }
|
|
Columns & getColumns() { return columns; }
|
|
};
|
|
|
|
|
|
}
|