dql:
                    datetime_functions:
                        date:           Oro\ORM\Query\AST\Functions\SimpleFunction
                        time:           Oro\ORM\Query\AST\Functions\SimpleFunction
                        timestamp:      Oro\ORM\Query\AST\Functions\SimpleFunction
                        convert_tz:     Oro\ORM\Query\AST\Functions\DateTime\ConvertTz
                    numeric_functions:
                        timestampdiff:  Oro\ORM\Query\AST\Functions\Numeric\TimestampDiff
                        dayofyear:      Oro\ORM\Query\AST\Functions\SimpleFunction
                        dayofmonth:     Oro\ORM\Query\AST\Functions\SimpleFunction
                        dayofweek:      Oro\ORM\Query\AST\Functions\SimpleFunction
                        week:           Oro\ORM\Query\AST\Functions\SimpleFunction
                        day:            Oro\ORM\Query\AST\Functions\SimpleFunction
                        hour:           Oro\ORM\Query\AST\Functions\SimpleFunction
                        minute:         Oro\ORM\Query\AST\Functions\SimpleFunction
                        month:          Oro\ORM\Query\AST\Functions\SimpleFunction
                        quarter:        Oro\ORM\Query\AST\Functions\SimpleFunction
                        second:         Oro\ORM\Query\AST\Functions\SimpleFunction
                        year:           Oro\ORM\Query\AST\Functions\SimpleFunction
                        sign:           Oro\ORM\Query\AST\Functions\Numeric\Sign
                        pow:            Oro\ORM\Query\AST\Functions\Numeric\Pow
                    string_functions:
                        group_concat:   Oro\ORM\Query\AST\Functions\String\GroupConcat
                        concat_ws:      Oro\ORM\Query\AST\Functions\String\ConcatWs
                        cast:           Oro\ORM\Query\AST\Functions\Cast