`index_audit_events_on_entity_id_and_entity_type_and_created_at` asynchronous database index addition
Summary
This issue is step 1 to to add a migration to create the index_audit_events_on_entity_id_and_entity_type_and_created_at
database index asynchronously on GitLab.com.
The synchronous index will be added in the followup #411129 (closed)
related to #337757 (closed)
verification
we probably shouldn't close this ticket till the migration is run in production.
The migration will be run on the weekend and can be verified following the steps here https://docs.gitlab.com/ee/development/database/adding_database_indexes.html#verify-the-mr-was-deployed-and-the-index-exists-in-production
Edited by Michael Becker