Summary

Charts have a limit of 20MB, which might not only be impacted by the amount of results returned but also the amount of pipeline items and their processing.

Chart data is stored as the final result and a 100 row preview for each pipeline step.  In cases where customers create a chart with many pipeline steps (40+), the data stored to power the pipeline preview can end up using most of the 20MB limit by itself.

This can confuse users as to the reason behind the error.

Suggestion

Improve the way data is processed so charts don't reach their size limit even when not returning a overwhelming amount of results.