ClickHouse/dbms/Storages/System/StorageSystemStoragePolicies.h
Ivan 97f2a2213e
Move all folders inside /dbms one level up (#9974)
* Move some code outside dbms/src folder
* Fix paths
2020-04-02 02:51:21 +03:00

36 lines
931 B
C++

#pragma once
#include <ext/shared_ptr_helper.h>
#include <Formats/FormatSettings.h>
#include <Storages/IStorage.h>
#include <Storages/MergeTree/MergeTreeData.h>
namespace DB
{
class Context;
/** Implements the system table `storage`, which allows you to get information about all disks.
*/
class StorageSystemStoragePolicies final : public ext::shared_ptr_helper<StorageSystemStoragePolicies>, public IStorage
{
friend struct ext::shared_ptr_helper<StorageSystemStoragePolicies>;
public:
std::string getName() const override { return "SystemStoragePolicies"; }
Pipes read(
const Names & column_names,
const SelectQueryInfo & query_info,
const Context & context,
QueryProcessingStage::Enum processed_stage,
size_t max_block_size,
unsigned num_streams) override;
protected:
StorageSystemStoragePolicies(const std::string & name_);
};
}