mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 21:51:57 +00:00
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
#pragma once
|
|
|
|
#include <ext/shared_ptr_helper.hpp>
|
|
|
|
#include <DB/Storages/IStorage.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
/** Реализует системную таблицу events, которая позволяет получить информацию для профайлинга.
|
|
*/
|
|
class StorageSystemEvents : private ext::shared_ptr_helper<StorageSystemEvents>, public IStorage
|
|
{
|
|
friend class ext::shared_ptr_helper<StorageSystemEvents>;
|
|
|
|
public:
|
|
static StoragePtr create(const std::string & name_);
|
|
|
|
std::string getName() const override { return "SystemEvents"; }
|
|
std::string getTableName() const override { return name; }
|
|
|
|
const NamesAndTypesList & getColumnsListImpl() const override { return columns; }
|
|
|
|
BlockInputStreams read(
|
|
const Names & column_names,
|
|
ASTPtr query,
|
|
const Context & context,
|
|
const Settings & settings,
|
|
QueryProcessingStage::Enum & processed_stage,
|
|
size_t max_block_size = DEFAULT_BLOCK_SIZE,
|
|
unsigned threads = 1) override;
|
|
|
|
private:
|
|
const std::string name;
|
|
NamesAndTypesList columns;
|
|
|
|
StorageSystemEvents(const std::string & name_);
|
|
};
|
|
|
|
}
|