Hi team, been exploring apache pinot for the first time. I'm unable to make the filter function work on pinot tables consuming events from kafka. I wanted to filter events based on event_names field in each kafka event. I get the below error and I tried setting up the Groovy field in controller.conf file, still no luck. org.apache.pinot.segment.loca^Cjava.lang.RuntimeException: Caught exception while executing filter function: Caused by: java.lang.NumberFormatException: For input string: "{event_name}" Any help would be appreciated.