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# name: test/sql/window/test_window_binding_ctes.test
# description: Test binding of named window functions in CTEs
# group: [window]
statement ok
PRAGMA enable_verification
# named window clause
query II
select i, lag(i) over named_window from (values (1), (2), (3)) as t (i) window named_window as (order by i);
----
1 NULL
2 1
3 2
# named window clause in CTE
query II
with subquery as (select i, lag(i) over named_window from (values (1), (2), (3)) as t (i) window named_window as (order by i)) select * from subquery;
----
1 NULL
2 1
3 2
# named window clause in subquery
query II
select * from (select i, lag(i) over named_window from (values (1), (2), (3)) as t (i) window named_window as (order by i)) t1;
----
1 NULL
2 1
3 2
# named window clause in view
statement ok
CREATE VIEW v1 AS select i, lag(i) over named_window from (values (1), (2), (3)) as t (i) window named_window as (order by i);
query II
select * from v1;
----
1 NULL
2 1
3 2
# same window clause name multiple times but in different subqueries
query IIII
SELECT * FROM (SELECT i, lag(i) OVER named_window FROM ( VALUES (1), (2), (3)) AS t (i) window named_window AS ( ORDER BY i)) t1, (SELECT i, lag(i) OVER named_window FROM ( VALUES (1), (2), (3)) AS t (i) window named_window AS ( ORDER BY i)) t2 ORDER BY 1, 2, 3, 4;
----
1 NULL 1 NULL
1 NULL 2 1
1 NULL 3 2
2 1 1 NULL
2 1 2 1
2 1 3 2
3 2 1 NULL
3 2 2 1
3 2 3 2
# we cannot use named window specifications of the main query inside CTEs
statement error
WITH subquery AS (SELECT i, lag(i) OVER named_window FROM ( VALUES (1), (2), (3)) AS t (i)) SELECT * FROM subquery window named_window AS ( ORDER BY i);
----
# duplicate window clause name
statement error
select i, lag(i) over named_window from (values (1), (2), (3)) as t (i) window named_window as (order by i), named_window as (order by j);
----
# window specs are locally scoped.
statement ok
CREATE TABLE a (id INT);
statement ok
WITH
cte_a AS (
SELECT *
FROM a
WINDOW my_window AS ()
),
cte_b AS (
SELECT *
FROM a
WINDOW my_window AS ()
)
SELECT *
FROM cte_a CROSS JOIN cte_b;
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