# File lib/jdbc_adapter/jdbc_postgre.rb, line 174
    def columns(table_name, name=nil)
      schema_name = "public"
      if table_name =~ /\./
        parts = table_name.split(/\./)
        table_name = parts.pop
        schema_name = parts.join(".")
      end
      @connection.columns_internal(table_name, name, schema_name)
    end