| 1 | #pragma once | 
|---|---|
| 2 | |
| 3 | #include <ext/shared_ptr_helper.h> | 
| 4 | #include <Storages/System/IStorageSystemOneBlock.h> | 
| 5 | |
| 6 | namespace DB | 
| 7 | { | 
| 8 | |
| 9 | class Context; | 
| 10 | |
| 11 | |
| 12 | /** Implements `events` system table, which allows you to obtain information for profiling. | 
| 13 | */ | 
| 14 | class StorageSystemEvents : public ext::shared_ptr_helper<StorageSystemEvents>, public IStorageSystemOneBlock<StorageSystemEvents> | 
| 15 | { | 
| 16 | friend struct ext::shared_ptr_helper<StorageSystemEvents>; | 
| 17 | public: | 
| 18 | std::string getName() const override { return "SystemEvents"; } | 
| 19 | |
| 20 | static NamesAndTypesList getNamesAndTypes(); | 
| 21 | |
| 22 | protected: | 
| 23 | using IStorageSystemOneBlock::IStorageSystemOneBlock; | 
| 24 | |
| 25 | void fillData(MutableColumns & res_columns, const Context & context, const SelectQueryInfo & query_info) const override; | 
| 26 | }; | 
| 27 | |
| 28 | } | 
| 29 | 
