| 125 | String *get_max_arg(String *not_used __attribute__((unused))) |
| 126 | { return &max_arg; } |
| 127 | String *avg(String *s, ha_rows rows) |
| 128 | { |
| 129 | if (!(rows - nulls)) |
| 130 | s->set_real((double) 0.0, 1,my_thd_charset); |
| 131 | else |
| 132 | s->set_real((ulonglong2double(sum) / ulonglong2double(rows - nulls)), |
| 133 | DEC_IN_AVG,my_thd_charset); |
| 134 | return s; |
| 135 | } |
| 136 | friend int collect_string(String *element, element_count count, |
| 137 | TREE_INFO *info); |
| 138 | tree_walk_action collect_enum() |