ClickHouse/dbms/include/DB/Parsers/ParserAlterQuery.h
2014-04-24 22:49:07 +04:00

22 lines
507 B
C++

#pragma once
#include <DB/Parsers/IParserBase.h>
#include <DB/Parsers/ExpressionElementParsers.h>
namespace DB
{
/** Запрос типа такого:
* ALTER TABLE [db.]name
* [ADD COLUMN col_name type [AFTER col_after],]
* [DROP COLUMN col_drop, ...]
* [MODIFY COLUMN col_modify type, ...]
*/
class ParserAlterQuery : public IParserBase
{
protected:
const char * getName() const { return "ALTER query"; }
bool parseImpl(Pos & pos, Pos end, ASTPtr & node, const char *& expected);
};
}