cube-js/cube

Align `TableColumn` Type with `Annotation` (Client Core)

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#9976 opened on Sep 17, 2025

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client:corehelp wanted

Description

Is your feature request related to a problem? Please describe.

We have two related types (as I believe table columns are derived from the annotation data):

https://github.com/cube-js/cube/blob/0fde75d3975d6911ec67353dacb9cfa0f62f0096/packages/cubejs-client-core/src/types.ts#L18-L27

https://github.com/cube-js/cube/blob/0fde75d3975d6911ec67353dacb9cfa0f62f0096/packages/cubejs-client-core/src/types.ts#L304-L313

I'm wondering why the types for type and format are different? I feel like Annotation is the correct one?

Describe the solution you'd like

Update the TableColumn type to better match Annotation.

Describe alternatives you've considered

N/A

Additional context

N/A

Contributor guide

Tech stack
typescript
Domain
frontend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
TypeScriptCube.js client core
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75
Research direction
Examine the types defined in packages/cubejs client core/src/types.ts lines 18-27 and 304-313. Determine the field differences between TableColumn and Annotation. Update TableColumn type to use the same type and format patterns as Annotation. Ensure consistency and consider if any other types rely on TableColumn.