ClickHouse/dbms/src/Interpreters/InterpreterDropQuery.h

42 lines
1.2 KiB
C++
Raw Normal View History

2011-11-05 23:31:19 +00:00
#pragma once
2019-03-11 14:01:45 +00:00
#include <Databases/IDatabase.h>
#include <Interpreters/IInterpreter.h>
#include <Parsers/ASTDropQuery.h>
2019-03-11 14:01:45 +00:00
#include <Parsers/IAST_fwd.h>
2011-11-05 23:31:19 +00:00
namespace DB
{
2017-05-23 18:01:50 +00:00
class Context;
2018-04-21 00:35:20 +00:00
using DatabaseAndTable = std::pair<DatabasePtr, StoragePtr>;
2017-05-23 18:01:50 +00:00
/** Allow to either drop table with all its data (DROP),
* or remove information about table (just forget) from server (DETACH),
* or just clear all data in table (TRUNCATE).
2011-11-05 23:31:19 +00:00
*/
2015-06-18 02:11:05 +00:00
class InterpreterDropQuery : public IInterpreter
2011-11-05 23:31:19 +00:00
{
public:
2017-05-23 18:01:50 +00:00
InterpreterDropQuery(const ASTPtr & query_ptr_, Context & context_);
2015-06-18 02:11:05 +00:00
/// Drop table or database.
BlockIO execute() override;
2011-11-05 23:31:19 +00:00
private:
void checkAccess(const ASTDropQuery & drop);
ASTPtr query_ptr;
2017-05-23 18:01:50 +00:00
Context & context;
2018-04-21 00:35:20 +00:00
BlockIO executeToDatabase(String & database_name, ASTDropQuery::Kind kind, bool if_exists);
2019-03-11 16:50:31 +00:00
BlockIO executeToTable(String & database_name, String & table_name, ASTDropQuery::Kind kind, bool if_exists, bool if_temporary, bool no_ddl_lock);
2018-04-21 00:35:20 +00:00
DatabasePtr tryGetDatabase(String & database_name, bool exists);
DatabaseAndTable tryGetDatabaseAndTable(String & database_name, String & table_name, bool if_exists);
BlockIO executeToTemporaryTable(String & table_name, ASTDropQuery::Kind kind);
2011-11-05 23:31:19 +00:00
};
}