Window Semantics for Streams

[Γιώργος Θεοδωράκης]

Hi,

I was wondering if there is any possible way to define windows with SQl in
Calcite for queries that don't have an aggregate function? For example, I
want to define the queries from Linear Road Benchmark of the STREAM project
(http://infolab.stanford.edu/stream/cql-benchmark.html):

1)
SELECT DISTINCT car_id
FROM CarSegStr [RANGE 30 SECONDS];

2)
SELECT car_id, exp_way, dir, seg
FROM CarSegStr [PARTITION BY car_id ROWS 1], CurActiveCars
WHERE CarSegStr.car_id = CurActiveCars.car_id;

Thank you in advance,
George.