# name: test/sql/window/test_scalar_window.test
# description: Most scalar window functions
# group: [window]

statement ok
PRAGMA enable_verification

# test scalar window functions
query I
SELECT row_number() OVER ()
----
1

query R
SELECT avg(42) OVER ()
----
42.000000

# window on non-aggregate function
statement error
SELECT concat() OVER ()
----
<REGEX>:.*Catalog Error.*concat is not an aggregate function.*

statement error
SELECT nonexistingfunction() OVER ()
----
<REGEX>:.*Catalog Error.*nonexistingfunction does not exist.*

# nested window functions are not allowed
statement error
SELECT avg(row_number() over ()) over ()
----
<REGEX>:.*Binder Error.*window function calls cannot be nested.*

statement error
SELECT avg(42) over (partition by row_number() over ())
----
<REGEX>:.*Parser Error.*window functions are not allowed.*

statement error
SELECT avg(42) over (order by row_number() over ())
----
<REGEX>:.*Parser Error.*window functions are not allowed.*