| 200 | return s; |
| 201 | } |
| 202 | String *avg(String *s, ha_rows rows) |
| 203 | { |
| 204 | if (!(rows - nulls)) |
| 205 | s->set_real((double) 0.0, 1,my_thd_charset); |
| 206 | else |
| 207 | s->set_real(((double)sum / (double) (rows - nulls)), item->decimals,my_thd_charset); |
| 208 | return s; |
| 209 | } |
| 210 | String *std(String *s, ha_rows rows) |
| 211 | { |
| 212 | double tmp = ulonglong2double(rows); |