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The main change of this PR is removing `order by visibility` hack. This was introduced to force using of `index_statuses_on_account_id` instead of PK index, but it seems no longer needed probably due to `index_statuses_on_account_id_id`. Removing this avoids reading all rows, so really improves first fetching of the user who has lot of statuses. I have also changed JOIN to IN + subquery, which slightly faster in most cases.