DROP TABLE IF EXISTS test_00609; DROP TABLE IF EXISTS test_mv_00609; create table test_00609 (a Int8) engine=Memory; insert into test_00609 values (1); create materialized view test_mv_00609 uuid '00000609-1000-4000-8000-000000000001' Engine=MergeTree(date, (a), 8192) populate as select a, toDate('2000-01-01') date from test_00609; select * from test_mv_00609; -- OK select * from test_mv_00609 where a in (select a from test_mv_00609); -- EMPTY (bug) select * from ".inner_id.00000609-1000-4000-8000-000000000001" where a in (select a from test_mv_00609); -- OK DROP TABLE test_00609; DROP TABLE test_mv_00609;