framework/resources/Functional/window_functions/nestedAggs/frmclause02.q

SELECT 
    col7, 
    MAX(COUNT(col1)) OVER ( PARTITION BY col7 ORDER BY col8 RANGE BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW ) mx_count_c1 , 
    col8 
FROM `allTypsUniq.parquet` 
GROUP BY col7,col8;