mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-17 21:24:28 +00:00
31 lines
544 B
C++
31 lines
544 B
C++
#pragma once
|
|
|
|
#include <DB/Interpreters/Context.h>
|
|
#include <DB/Interpreters/IInterpreter.h>
|
|
|
|
|
|
namespace DB
|
|
{
|
|
|
|
|
|
/** Вернуть названия и типы столбцов указанной таблицы.
|
|
*/
|
|
class InterpreterDescribeQuery : public IInterpreter
|
|
{
|
|
public:
|
|
InterpreterDescribeQuery(ASTPtr query_ptr_, const Context & context_)
|
|
: query_ptr(query_ptr_), context(context_) {}
|
|
|
|
BlockIO execute() override;
|
|
|
|
private:
|
|
ASTPtr query_ptr;
|
|
Context context;
|
|
|
|
Block getSampleBlock();
|
|
BlockInputStreamPtr executeImpl();
|
|
};
|
|
|
|
|
|
}
|