exec-ddl
CREATE TABLE kv (
  k INT PRIMARY KEY,
  v INT,
  w INT,
  s STRING
)
----
TABLE kv
 ├── k int not null
 ├── v int
 ├── w int
 ├── s string
 └── INDEX primary
      └── k int not null

build
SELECT avg(k) OVER (PARTITION BY v) FROM kv ORDER BY 1
----
error (0A000): unimplemented: window functions are not supported

build
SELECT avg(avg(k) OVER ()) FROM kv ORDER BY 1
----
error (0A000): unimplemented: window functions are not supported

build
SELECT * FROM kv GROUP BY v, count(w) OVER ()
----
error (0A000): unimplemented: window functions are not supported
