---
title: columnMapping
framework: createmlcomponents
role: symbol
role_heading: Instance Property
path: createmlcomponents/columnselectortransformer/columnmapping
---

# columnMapping

A mapping of input column names to output column names.

## Declaration

```swift
var columnMapping: [String : String]
```

## See Also

### Getting the properties

- [transformers](createmlcomponents/columnselectortransformer/transformers.md)