ClickHouse client version 19.17.1.1553 (official build).
Connecting to localhost:9000 as user default.
Connected to ClickHouse server version 19.17.1 revision 54428.

SELECT *
FROM
(
    SELECT
        1 AS a,
        2 AS b,
        4 AS c
) AS foo
FULL OUTER JOIN
(
    SELECT
        1 AS a,
        2 AS b,
        3 AS c
) AS bar ON (foo.a = bar.b) AND (foo.b = bar.b)


Exception on client:
Code: 32. DB::Exception: Attempt to read after eof: while receiving packet from localhost:9000

Connecting to localhost:9000 as user default.
Code: 210. DB::NetException: Connection refused (localhost:9000)