ClickHouse/src/Storages/System/StorageSystemMetrics.h
2020-04-03 18:14:31 +03:00

30 lines
777 B
C++

#pragma once
#include <ext/shared_ptr_helper.h>
#include <Storages/System/IStorageSystemOneBlock.h>
namespace DB
{
class Context;
/** Implements `metrics` system table, which provides information about the operation of the server.
*/
class StorageSystemMetrics final : public ext::shared_ptr_helper<StorageSystemMetrics>, public IStorageSystemOneBlock<StorageSystemMetrics>
{
friend struct ext::shared_ptr_helper<StorageSystemMetrics>;
public:
std::string getName() const override { return "SystemMetrics"; }
static NamesAndTypesList getNamesAndTypes();
protected:
using IStorageSystemOneBlock::IStorageSystemOneBlock;
void fillData(MutableColumns & res_columns, const Context & context, const SelectQueryInfo & query_info) const override;
};
}