mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-24 16:42:05 +00:00
44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
#pragma once
|
||
|
||
#include <Poco/SharedPtr.h>
|
||
|
||
#include <DB/Storages/IStorage.h>
|
||
#include <DB/Interpreters/Context.h>
|
||
|
||
|
||
namespace DB
|
||
{
|
||
|
||
using Poco::SharedPtr;
|
||
|
||
|
||
/** Реализует системную таблицу processes, которая позволяет получить информацию о запросах, исполняющихся в данный момент.
|
||
*/
|
||
class StorageSystemProcesses : public IStorage
|
||
{
|
||
public:
|
||
static StoragePtr create(const std::string & name_, const Context & context_);
|
||
|
||
std::string getName() const override { return "SystemProcesses"; }
|
||
std::string getTableName() const override { return name; }
|
||
|
||
const NamesAndTypesList & getColumnsList() const override { return columns; }
|
||
|
||
BlockInputStreams read(
|
||
const Names & column_names,
|
||
ASTPtr query,
|
||
const Settings & settings,
|
||
QueryProcessingStage::Enum & processed_stage,
|
||
size_t max_block_size = DEFAULT_BLOCK_SIZE,
|
||
unsigned threads = 1) override;
|
||
|
||
private:
|
||
const std::string name;
|
||
const Context & context;
|
||
NamesAndTypesList columns;
|
||
|
||
StorageSystemProcesses(const std::string & name_, const Context & context_);
|
||
};
|
||
|
||
}
|