• Sean McGivern's avatar
    Add cop for use of remove_column · 1ab33b15
    Sean McGivern authored
    remove_column should only be used in the up (or change) step of a migration if
    it's a post-deployment migration. Otherwise there will be downtime due to the
    ActiveRecord column cache, which we can avoid by using the IgnorableColumn
    concern in combination with a post-deployment migration.
    1ab33b15
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