mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-22 15:42:02 +00:00
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
#pragma once
|
||
|
||
#include <DB/DataStreams/IBlockOutputStream.h>
|
||
|
||
#define PRETTY_FORMAT_DEFAULT_MAX_ROWS 10000
|
||
|
||
|
||
namespace DB
|
||
{
|
||
|
||
/** Выводит результат в виде красивых таблиц.
|
||
*/
|
||
class PrettyBlockOutputStream : public IBlockOutputStream
|
||
{
|
||
public:
|
||
/// no_escapes - не использовать ANSI escape sequences - для отображения в браузере, а не в консоли.
|
||
PrettyBlockOutputStream(WriteBuffer & ostr_, bool no_escapes_ = false, size_t max_rows_ = PRETTY_FORMAT_DEFAULT_MAX_ROWS);
|
||
|
||
void write(const Block & block) override;
|
||
void writeSuffix() override;
|
||
|
||
void flush() override { ostr.next(); }
|
||
|
||
void setTotals(const Block & totals_) override { totals = totals_; }
|
||
void setExtremes(const Block & extremes_) override { extremes = extremes_; }
|
||
|
||
protected:
|
||
void writeTotals();
|
||
void writeExtremes();
|
||
|
||
typedef std::vector<size_t> Widths_t;
|
||
|
||
/// Вычислить видимую (при выводе на консоль с кодировкой UTF-8) ширину значений и имён столбцов.
|
||
void calculateWidths(Block & block, Widths_t & max_widths, Widths_t & name_widths);
|
||
|
||
WriteBuffer & ostr;
|
||
size_t max_rows;
|
||
size_t total_rows;
|
||
size_t terminal_width;
|
||
|
||
bool no_escapes;
|
||
|
||
Block totals;
|
||
Block extremes;
|
||
};
|
||
|
||
}
|