1_install_fuzzystrmatch_contrib_package.rb

class InstallFuzzystrmatchContribPackage < ActiveRecord::Migration
  def up
    execute "CREATE EXTENSION fuzzystrmatch;"
  end

  def down
    execute "DROP EXTENSION fuzzystrmatch;"
  end
end

1_install_pgtrgm_contrib_package.rb

class InstallPgTrgmContribPackage < ActiveRecord::Migration
  def up
    execute "CREATE EXTENSION pg_trgm;"
  end

  def down
    execute "DROP EXTENSION pg_trgm;"
  end
end