db/migrate/20210322164601_create_account_summaries.rb


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class CreateAccountSummaries < ActiveRecord::Migration[5.2]
  def change
    create_view :account_summaries, materialized: true

    # To be able to refresh the view concurrently,
    # at least one unique index is required
    safety_assured { add_index :account_summaries, :account_id, unique: true }
  end
end