ql/src/test/queries/clientpositive/distinct_windowing.q

drop table over10k_n15;

create table over10k_n15(
           t tinyint,
           si smallint,
           i int,
           b bigint,
           f float,
           d double,
           bo boolean,
           s string,
           ts timestamp,
           `dec` decimal(4,2),
           bin binary)
       row format delimited
       fields terminated by '|';

load data local inpath '../../data/files/over10k' into table over10k_n15;

 EXPLAIN
  SELECT fv
    FROM (SELECT distinct first_value(t) OVER ( PARTITION BY si ORDER BY i ) AS fv
            FROM over10k_n15) sq
ORDER BY fv
   LIMIT 10;

  SELECT fv
    FROM (SELECT distinct first_value(t) OVER ( PARTITION BY si ORDER BY i ) AS fv
            FROM over10k_n15) sq
ORDER BY fv
   LIMIT 10;

 EXPLAIN
  SELECT lv
    FROM (SELECT distinct last_value(i) OVER ( PARTITION BY si ORDER BY i ) AS lv
            FROM over10k_n15) sq
ORDER BY lv 
   LIMIT 10;

  SELECT lv
    FROM (SELECT distinct last_value(i) OVER ( PARTITION BY si ORDER BY i ) AS lv
            FROM over10k_n15) sq
ORDER BY lv
   LIMIT 10;

 EXPLAIN
  SELECT lv, fv
    FROM (SELECT distinct last_value(i) OVER ( PARTITION BY si ORDER BY i ) AS lv,
                          first_value(t) OVER ( PARTITION BY si ORDER BY i ) AS fv
            FROM over10k_n15) sq
ORDER BY lv, fv
   LIMIT 50;

  SELECT lv, fv
    FROM (SELECT distinct last_value(i) OVER ( PARTITION BY si ORDER BY i ) AS lv,
                          first_value(t) OVER ( PARTITION BY si ORDER BY i ) AS fv
            FROM over10k_n15) sq 
ORDER BY lv, fv
   LIMIT 50;