# AnyColumnProtocol A type that represents a type-erased column. ``` protocol AnyColumnProtocol ``` ## Overview `AnyColumnProtocol` defines the common functionality for type-erased column types. Its typed counterpart is [`ColumnProtocol`](/documentation/TabularData/ColumnProtocol). ## Topics ### Inspecting a Type-Erased Column Type [`var name: String`](/documentation/TabularData/AnyColumnProtocol/name) The name of the column type. [`var count: Int`](/documentation/TabularData/AnyColumnProtocol/count) The number of elements in the column type. [`var wrappedElementType: any Any.Type`](/documentation/TabularData/AnyColumnProtocol/wrappedElementType) The underlying type of the column type’s elements. ### Retrieving Elements [`subscript(Int) -> Any?`](/documentation/TabularData/AnyColumnProtocol/subscript(_:)-1dl8y) Retrieves an element at a position in the column type. [`subscript(Range) -> AnyColumnSlice`](/documentation/TabularData/AnyColumnProtocol/subscript(_:)-81v4q) Retrieves a contiguous subrange of the column type’s elements. ## Relationships ### Conforming Types [`AnyColumnSlice`](/documentation/TabularData/AnyColumnSlice) [`AnyColumn`](/documentation/TabularData/AnyColumn) --- 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)