ClickHouse/src/Parsers/ASTDictionaryAttributeDeclaration.h
2020-08-08 03:47:03 +03:00

35 lines
895 B
C++

#pragma once
#include <Parsers/IAST.h>
#include <Parsers/ASTExpressionList.h>
namespace DB
{
/// AST for single dictionary attribute in dictionary DDL query
class ASTDictionaryAttributeDeclaration : public IAST
{
public:
/// Attribute name
String name;
/// Attribute type
ASTPtr type;
/// Attribute default value
ASTPtr default_value;
/// Attribute expression
ASTPtr expression;
/// Is attribute mirrored to the parent identifier
bool hierarchical;
/// Flag that shows whether the id->attribute image is injective
bool injective;
/// MongoDB object ID
bool is_object_id;
String getID(char delim) const override { return "DictionaryAttributeDeclaration" + (delim + name); }
ASTPtr clone() const override;
void formatImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override;
};
}