ClickHouse/dbms/src/Parsers/ASTSystemQuery.h
2019-12-19 10:27:12 +01:00

78 lines
1.7 KiB
C++

#pragma once
#include "config_core.h"
#include <Parsers/ASTQueryWithOnCluster.h>
#include <Parsers/IAST.h>
namespace DB
{
class ASTSystemQuery : public IAST, public ASTQueryWithOnCluster
{
public:
enum class Type
{
UNKNOWN,
SHUTDOWN,
KILL,
DROP_DNS_CACHE,
DROP_MARK_CACHE,
DROP_UNCOMPRESSED_CACHE,
#if USE_EMBEDDED_COMPILER
DROP_COMPILED_EXPRESSION_CACHE,
#endif
STOP_LISTEN_QUERIES,
START_LISTEN_QUERIES,
RESTART_REPLICAS,
RESTART_REPLICA,
SYNC_REPLICA,
RELOAD_DICTIONARY,
RELOAD_DICTIONARIES,
RELOAD_EMBEDDED_DICTIONARIES,
RELOAD_CONFIG,
STOP_MERGES,
START_MERGES,
STOP_TTL_MERGES,
START_TTL_MERGES,
STOP_FETCHES,
START_FETCHES,
STOP_MOVES,
START_MOVES,
STOP_REPLICATED_SENDS,
START_REPLICATED_SENDS,
STOP_REPLICATION_QUEUES,
START_REPLICATION_QUEUES,
FLUSH_LOGS,
FLUSH_DISTRIBUTED,
STOP_DISTRIBUTED_SENDS,
START_DISTRIBUTED_SENDS,
END
};
static const char * typeToString(Type type);
Type type = Type::UNKNOWN;
String target_dictionary;
String database;
String table;
String getID(char) const override { return "SYSTEM query"; }
ASTPtr clone() const override { return std::make_shared<ASTSystemQuery>(*this); }
ASTPtr getRewrittenASTWithoutOnCluster(const std::string & new_database) const override
{
return removeOnCluster<ASTSystemQuery>(clone(), new_database);
}
protected:
void formatImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override;
};
}