[ROOT] / doc / toc / ARCQuery / Class / QueryExpressionPivot / AggregationKey

This is often null (with AggregationType correspondingly set to Count-).
Iteration then looks like
'PIVOT Product BY Year'.
If not null then iteration looks like:
'PIVOT Product BY Year SUM Amount'

Generated 2026-01-02 10:17:32.912 UTC