db/migrate/20181019032400_add_shards_table.rb


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# frozen_string_literal: true

class AddShardsTable < ActiveRecord::Migration[4.2]
  DOWNTIME = false

  def change
    create_table :shards do |t|
      t.string :name, null: false, index: { unique: true } # rubocop:disable Migration/PreventStrings
    end
  end
end