# CatalogColumnUsage

> Type in domain **Catalogs**

- HTML: [CatalogColumnUsage.html](CatalogColumnUsage.html)
- Raw SDL: [CatalogColumnUsage.sdl](CatalogColumnUsage.sdl)
- Covered by: [llms.txt](../llms.txt)

## Fields

- `column`: `CatalogColumn!` _(beta)_ — The in-use `CatalogColumn`.
- `reasons`: `[CatalogColumnUsageReason!]!` _(beta)_ — Why this `CatalogColumn` is currently in use.