ClickHouse/src/Parsers/ASTShowTablesQuery.h

47 lines
1.0 KiB
C++

#pragma once
#include <iomanip>
#include <Parsers/IAST.h>
#include <Parsers/ASTQueryWithOutput.h>
namespace DB
{
/** Query SHOW TABLES or SHOW DATABASES or SHOW CLUSTERS
*/
class ASTShowTablesQuery : public ASTQueryWithOutput
{
public:
bool databases{false};
bool clusters{false};
bool cluster{false};
bool dictionaries{false};
bool m_settings{false};
bool changed{false};
bool temporary{false};
String cluster_str;
String from;
String like;
bool not_like{false};
bool case_insensitive_like{false};
ASTPtr where_expression;
ASTPtr limit_length;
/** Get the text that identifies this element. */
String getID(char) const override { return "ShowTables"; }
ASTPtr clone() const override;
protected:
void formatLike(const FormatSettings & settings) const;
void formatLimit(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const;
void formatQueryImpl(const FormatSettings & settings, FormatState &, FormatStateStacked) const override;
};
}