See parent ticket
OPT-3085 and with OPT-3772 we implemented the first version of the new variable reports. Before that, the report evaluation was only based on frequency/duration of instances (e.g. process instances/ flow nodes) which only need the precision of integers (so no rational numbers necessary). However, for variables, it might be interesting to see the digits after the comma and for that, we need to support rational results.
- variables report evaluation can return rational results