20170809133343_add_broadcast_messages_index.rb 550 Bytes
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# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.

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class AddBroadcastMessagesIndex < ActiveRecord::Migration[4.2]
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  include Gitlab::Database::MigrationHelpers

  # Set this constant to true if this migration requires downtime.
  DOWNTIME = false

  disable_ddl_transaction!

  COLUMNS = %i[starts_at ends_at id].freeze

  def up
    add_concurrent_index :broadcast_messages, COLUMNS
  end

  def down
    remove_concurrent_index :broadcast_messages, COLUMNS
  end
end