columns

# File activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb, line 449
      def columns(table_name)#:nodoc:
        sql = "SHOW FULL FIELDS FROM #{quote_table_name(table_name)}"
        execute_and_free(sql, 'SCHEMA') do |result|
          each_hash(result).map do |field|
            field_name = set_field_encoding(field[:Field])
            sql_type = field[:Type]
            cast_type = lookup_cast_type(sql_type)
            new_column(field_name, field[:Default], cast_type, sql_type, field[:Null] == "YES", field[:Collation], field[:Extra])
          end
        end
      end