ClickHouse/dbms/src/Interpreters/InterpreterDescribeQuery.h

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#pragma once
#include <Interpreters/IInterpreter.h>
namespace DB
{
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class Context;
class IAST;
using ASTPtr = std::shared_ptr<IAST>;
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/** Return names, types and other information about columns in specified table.
*/
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class InterpreterDescribeQuery : public IInterpreter
{
public:
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InterpreterDescribeQuery(const ASTPtr & query_ptr_, const Context & context_)
: query_ptr(query_ptr_), context(context_) {}
BlockIO execute() override;
static Block getSampleBlock();
private:
ASTPtr query_ptr;
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const Context & context;
BlockInputStreamPtr executeImpl();
};
}