mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-25 00:52:02 +00:00
45 lines
846 B
C++
45 lines
846 B
C++
#pragma once
|
||
|
||
#include <DB/Parsers/IAST.h>
|
||
|
||
|
||
namespace DB
|
||
{
|
||
|
||
|
||
/** Запрос с секцией FORMAT.
|
||
*/
|
||
class ASTQueryWithOutput : public IAST
|
||
{
|
||
public:
|
||
ASTPtr format;
|
||
|
||
ASTQueryWithOutput() {}
|
||
ASTQueryWithOutput(StringRange range_) : IAST(range_) {}
|
||
};
|
||
|
||
|
||
/// Объявляет класс-наследник ASTQueryWithOutput с реализованными методами getID и clone.
|
||
#define DEFINE_AST_QUERY_WITH_OUTPUT(Name, ID) \
|
||
class Name : public ASTQueryWithOutput \
|
||
{ \
|
||
public: \
|
||
Name() {} \
|
||
Name(StringRange range_) : ASTQueryWithOutput(range_) {} \
|
||
String getID() const { return ID; }; \
|
||
\
|
||
ASTPtr clone() const \
|
||
{ \
|
||
Name * res = new Name(*this); \
|
||
res->children.clear(); \
|
||
if (format) \
|
||
{ \
|
||
res->format = format->clone(); \
|
||
res->children.push_back(res->format); \
|
||
} \
|
||
return res; \
|
||
} \
|
||
};
|
||
|
||
}
|