ClickHouse/dbms/src/Parsers/ASTSelectQuery.h
2018-02-26 12:05:06 +03:00

56 lines
1.4 KiB
C++

#pragma once
#include <Parsers/IAST.h>
#include <Core/Names.h>
namespace DB
{
struct ASTTablesInSelectQueryElement;
/** SELECT query
*/
class ASTSelectQuery : public IAST
{
public:
/** Get the text that identifies this element. */
String getID() const override { return "SelectQuery"; };
ASTPtr clone() const override;
bool distinct = false;
ASTPtr with_expression_list;
ASTPtr select_expression_list;
ASTPtr tables;
ASTPtr prewhere_expression;
ASTPtr where_expression;
ASTPtr group_expression_list;
bool group_by_with_totals = false;
ASTPtr having_expression;
ASTPtr order_expression_list;
ASTPtr limit_by_value;
ASTPtr limit_by_expression_list;
ASTPtr limit_offset;
ASTPtr limit_length;
ASTPtr settings;
/// Compatibility with old parser of tables list. TODO remove
ASTPtr database() const;
ASTPtr table() const;
ASTPtr sample_size() const;
ASTPtr sample_offset() const;
ASTPtr array_join_expression_list() const;
const ASTTablesInSelectQueryElement * join() const;
bool array_join_is_left() const;
bool final() const;
void setDatabaseIfNeeded(const String & database_name);
void replaceDatabaseAndTable(const String & database_name, const String & table_name);
protected:
void formatImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override;
};
}