hits_10m_single hits_100m_single 1 table hits_10m_single hits_100m_single SELECT avg(length(URL)) as x from hits_100m_single GROUP BY CounterID FORMAT Null SELECT avg(length(URL)) as x from {table} GROUP BY CounterID, EventDate FORMAT Null SELECT avg(length(URL)) as x from hits_10m_single GROUP BY CounterID, EventDate, intHash32(UserID) FORMAT Null