db/post_migrate/20170526185901_remove_stage_id_index_from_builds.rb


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class RemoveStageIdIndexFromBuilds < ActiveRecord::Migration
  include Gitlab::Database::MigrationHelpers

  DOWNTIME = false

  disable_ddl_transaction!

  def up
    if index_exists?(:ci_builds, :stage_id)
      remove_concurrent_index(:ci_builds, :stage_id)
    end
  end

  def down
    # noop
  end
end