ql/src/test/queries/positive/input5.q

--! qt:dataset:src_thrift
FROM (
  FROM src_thrift
  SELECT TRANSFORM(src_thrift.lint, src_thrift.lintstring)
         USING '/bin/cat' AS (tkey, tvalue) 
  CLUSTER BY tkey 
) tmap
INSERT OVERWRITE TABLE dest1 SELECT tmap.tkey, tmap.tvalue