# ColumnID A column identifier that stores a column’s name and the type of its elements. ``` struct ColumnID ``` ## Topics ### Creating a Column ID [`init(String, T.Type)`](/documentation/TabularData/ColumnID/init(_:_:)) Creates a column identifier. ### Getting the Properties [`var name: String`](/documentation/TabularData/ColumnID/name) The name of the column the identifier represents. ### Instance Properties [`var type: any Any.Type`](/documentation/TabularData/ColumnID/type) The type of elements stored in the column the identifier represents. ### Default Implementations [CustomStringConvertible Implementations](/documentation/TabularData/ColumnID/CustomStringConvertible-Implementations) ## Relationships ### Conforms To [`Escapable`](/documentation/Swift/Escapable) [`Copyable`](/documentation/Swift/Copyable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Sendable`](/documentation/Swift/Sendable) [`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)