assume_migrated_upto_version

# File activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb, line 1021
      def assume_migrated_upto_version(version, migrations_paths)
        migrations_paths = Array(migrations_paths)
        version = version.to_i
        sm_table = quote_table_name(ActiveRecord::Migrator.schema_migrations_table_name)

        migrated = select_values("SELECT version FROM #{sm_table}").map(&:to_i)
        paths = migrations_paths.map {|p| "#{p}/[0-9]*_*.rb" }
        versions = Dir[*paths].map do |filename|
          filename.split('/').last.split('_').first.to_i
        end

        unless migrated.include?(version)
          execute "INSERT INTO #{sm_table} (version) VALUES ('#{version}')"
        end

        inserting = (versions - migrated).select {|v| v < version}
        if inserting.any?
          if (duplicate = inserting.detect {|v| inserting.count(v) > 1})
            raise "Duplicate migration #{duplicate}. Please renumber your migrations to resolve the conflict."
          end
          execute insert_versions_sql(inserting)
        end
      end