Table ownership information

Table ownership within the GitLab database can often be difficult to determine. Understanding the groups that "own" a table can help in troubleshooting, data analytics and with our new error budget initiative.

We have proposed a structure for commenting on table and column ownership in the Database Dictionary epic. The CustomersDot DB followed this guideline when documenting and describing some tables within their database &1.

This is a more general issue, also to discuss how we can derive ownership automatically. A more specific one for ci_builds can be found here: gitlab-org/gitlab#332716 (closed)