Add Telemetry Tracking for Users Associating Milestones to Releases
requested to merge 235798-add-telemetry-tracking-for-users-associating-group-milestones-to-releases-2 into master
What does this MR do and why?
Adds metric for the number of unique users associating releases to milestones.
Also adds index for `(author_id, id, created_at) to speed the query.
Related to #235798 (closed)
Database migrations and queries
Please see in comments to relevant lines.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR.
Edited by Vladimir Shushlin