drop table IF EXISTS joinbug; set allow_deprecated_syntax_for_merge_tree=1; CREATE TABLE joinbug ( event_date Date MATERIALIZED toDate(created, 'Asia/Istanbul'), id UInt64, id2 UInt64, val UInt64, val2 Int32, created UInt64 ) ENGINE = MergeTree(event_date, (id, id2), 8192); insert into joinbug (id, id2, val, val2, created) values (1,11,91,81,123456), (2,22,92,82,123457); drop table IF EXISTS joinbug_join; CREATE TABLE joinbug_join ( id UInt64, id2 UInt64, val UInt64, val2 Int32, created UInt64 ) ENGINE = Join(SEMI, LEFT, id2); insert into joinbug_join (id, id2, val, val2, created) select id, id2, val, val2, created from joinbug; select * from joinbug; select id, id2, val, val2, created from ( SELECT toUInt64(arrayJoin(range(50))) AS id2 ) js1 SEMI LEFT JOIN joinbug_join using id2; -- type conversion SELECT * FROM ( SELECT toUInt32(11) AS id2 ) AS js1 SEMI LEFT JOIN joinbug_join USING (id2); -- can't convert right side in case on storage join SELECT * FROM ( SELECT toInt64(11) AS id2 ) AS js1 SEMI LEFT JOIN joinbug_join USING (id2); -- { serverError TYPE_MISMATCH, 386 } DROP TABLE joinbug; DROP TABLE joinbug_join;