| 2016 | /* Check whether the field can be used as a join attribute in hash join */ |
| 2017 | virtual bool hash_join_is_possible() { return TRUE; } |
| 2018 | virtual bool eq_cmp_as_binary() { return TRUE; } |
| 2019 | |
| 2020 | /* Position of the field value within the interval of [min, max] */ |
| 2021 | virtual double pos_in_interval(Field *min, Field *max) |