[Rollup] Add a comment about api use by the data view plugin #163432
Merged
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Summary
Adds a comment that the API endpoint /rollup/indices is used by the data view plugin.
With #162674 merged, the issue #152708 has been closed. The Data Discovery team is not planning any further work around rollup api use due to the feature being deprecated. I think adding a comment to the API code directly will help us remember this dependency for when we are going to edit or remove the endpoint.