db/migrate/20160805041956_add_deleted_at_to_namespaces.rb


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

  DOWNTIME = false

  disable_ddl_transaction!

  def up
    add_column :namespaces, :deleted_at, :datetime

    add_concurrent_index :namespaces, :deleted_at
  end

  def down
    remove_index :namespaces, :deleted_at if index_exists? :namespaces, :deleted_at

    remove_column :namespaces, :deleted_at
  end
end