When collection returns an ActiveRecord::Relation, how do we set limit for each "batch"? job-iteration's Best Practices says it defaults to 100. 100 is way too small for expensive queries and/or large datasets.
It looks like that's passed in here.
But when using the maintenance_tasks gem, in the collection method, we're not explicitly building an enumerator. So how can we pass in or set the @batch_size? I've tried some guesses like @batch_size, @of, def batch_size, def of inside the MaintenanceTasks::Task.
This is considered a missing API in the gem and a PR is welcome.