Views containing window functions do not respect predicate pushdown

[SoryRawyer]

Describe what's wrong

Predicate pushdown does not seem to operate as expected when a view query contains a window function. I've included a link to a fiddle that contains:

• A users table
• A view querying that table with a window function
• Two queries, each with a filter that leverages the primary key on users and each with force_primary_key enabled:
  • One directly querying the users table using the same query as the view
  • One using the view

Fiddle: https://fiddle.clickhouse.com/987e6c0e-e605-4625-a614-9e1f015fc668

The query against the base users table completes successfully, while the view-based query fails with an INDEX_NOT_USED exception.

Does it reproduce on recent release?

Yes.

How to reproduce I think the fiddle contains all steps necessary to reproduce. In case the fiddle is altered in the meantime, below is the same query text:

fiddle code reproduced here

```sql CREATE TABLE users ( uid Int16, name String, department String, started DateTime64() ) ENGINE=MergeTree primary key (department); create view users_with_previous as SELECT uid, name, department, lagInFrame(uid, 1) over (partition by department order by started asc) as previous_user from users; INSERT INTO users VALUES (1231, 'John', 'Sales', '2023-06-08 12:00:00'); INSERT INTO users VALUES (6666, 'Ksenia', 'Engineering', '2023-06-09 12:00:00'); INSERT INTO users VALUES (8888, 'Alice', 'Engineering', '2023-06-10 12:00:00'); -- completes successfully select uid, name, department, lagInFrame(uid, 1) over (partition by department order by started asc) as previous_user from users where department = 'Engineering' settings force_primary_key=1; -- does not complete successfully select * from users_with_previous where department = 'Engineering' settings force_primary_key=1; ```

Expected behavior

I would expect both select queries in the code sample provided to return the same result.

Error message and/or stacktrace

Received exception from server (version 23.5.3):
Code: 277. DB::Exception: Received from localhost:9000. DB::Exception: Primary key (department) is not used and setting 'force_primary_key' is set. (INDEX_NOT_USED)

[den-crane]

Not a bug. It was never intended to work. Planned https://github.com/ClickHouse/ClickHouse/issues/42648