ClickHouse/dbms/src/Storages/ColumnsDescription.h

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#pragma once
#include <Core/NamesAndTypes.h>
#include <Core/Names.h>
#include <Storages/ColumnDefault.h>
#include <Core/Block.h>
namespace DB
{
struct ColumnsDescription
{
NamesAndTypesList ordinary;
NamesAndTypesList materialized;
NamesAndTypesList aliases;
ColumnDefaults defaults;
ColumnsDescription() = default;
ColumnsDescription(
NamesAndTypesList ordinary_,
NamesAndTypesList materialized_,
NamesAndTypesList aliases_,
ColumnDefaults defaults_)
: ordinary(std::move(ordinary_))
, materialized(std::move(materialized_))
, aliases(std::move(aliases_))
, defaults(std::move(defaults_))
{}
explicit ColumnsDescription(NamesAndTypesList ordinary_) : ordinary(std::move(ordinary_)) {}
bool operator==(const ColumnsDescription & other) const
{
return ordinary == other.ordinary
&& materialized == other.materialized
&& aliases == other.aliases
&& defaults == other.defaults;
}
bool operator!=(const ColumnsDescription & other) const { return !(*this == other); }
/// ordinary + materialized.
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NamesAndTypesList getAllPhysical() const;
/// ordinary + materialized + aliases.
NamesAndTypesList getAll() const;
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Names getNamesOfPhysical() const;
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NameAndTypePair getPhysical(const String & column_name) const;
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bool hasPhysical(const String & column_name) const;
String toString() const;
static ColumnsDescription parse(const String & str);
};
}