A shout-out to @Jackie and @Rong R for their help in solving an issue that surfaced after we did an update to Pinot 0.10. This community is awesome! And I (re)learned something useful about star-trees…once you have a filter in the query that includes a field not in the star-tree dimensions, then you’re back to scanning records, which can change the results for groups when the key is high cardinality. https://apache-pinot.slack.com/archives/C011C9JHN7R/p1664378704003049