-- disable timezone randomization since otherwise TTL may fail at particular datetime, i.e.: -- -- SELECT -- now(), -- toDate(toTimeZone(now(), 'America/Mazatlan')), -- today() -- -- ┌───────────────now()─┬─toDate(toTimeZone(now(), 'America/Mazatlan'))─┬────today()─┐ -- │ 2023-07-24 06:24:06 │ 2023-07-23 │ 2023-07-24 │ -- └─────────────────────┴───────────────────────────────────────────────┴────────────┘ SET session_timezone = ''; SET allow_suspicious_ttl_expressions = 1; drop table if exists ttl_00933_1; -- Column TTL works only with wide parts, because it's very expensive to apply it for compact parts create table ttl_00933_1 (d DateTime, a Int ttl d + interval 1 second, b Int ttl d + interval 1 second) engine = MergeTree order by tuple() partition by toMinute(d) settings min_bytes_for_wide_part = 0; insert into ttl_00933_1 values (now(), 1, 2); insert into ttl_00933_1 values (now(), 3, 4); select sleep(1.1) format Null; optimize table ttl_00933_1 final; select a, b from ttl_00933_1; drop table if exists ttl_00933_1; create table ttl_00933_1 (d DateTime, a Int, b Int) engine = MergeTree order by toDate(d) partition by tuple() ttl d + interval 1 second settings remove_empty_parts = 0; insert into ttl_00933_1 values (now(), 1, 2); insert into ttl_00933_1 values (now(), 3, 4); insert into ttl_00933_1 values (now() + 1000, 5, 6); select sleep(1.1) format Null; optimize table ttl_00933_1 final; -- check ttl merge for part with both expired and unexpired values select a, b from ttl_00933_1; drop table if exists ttl_00933_1; create table ttl_00933_1 (d DateTime, a Int ttl d + interval 1 DAY) engine = MergeTree order by tuple() partition by toDayOfMonth(d) settings min_bytes_for_wide_part = 0; insert into ttl_00933_1 values (toDateTime('2000-10-10 00:00:00'), 1); insert into ttl_00933_1 values (toDateTime('2000-10-10 00:00:00'), 2); insert into ttl_00933_1 values (toDateTime('2000-10-10 00:00:00'), 3); optimize table ttl_00933_1 final; select * from ttl_00933_1 order by d; drop table if exists ttl_00933_1; create table ttl_00933_1 (d DateTime, a Int) engine = MergeTree order by tuple() partition by tuple() ttl d + interval 1 day settings remove_empty_parts = 0; insert into ttl_00933_1 values (toDateTime('2000-10-10 00:00:00'), 1); insert into ttl_00933_1 values (toDateTime('2000-10-10 00:00:00'), 2); insert into ttl_00933_1 values (toDateTime('2100-10-10 00:00:00'), 3); optimize table ttl_00933_1 final; select * from ttl_00933_1 order by d; drop table if exists ttl_00933_1; create table ttl_00933_1 (d Date, a Int) engine = MergeTree order by a partition by toDayOfMonth(d) ttl d + interval 1 day settings remove_empty_parts = 0; insert into ttl_00933_1 values (toDate('2000-10-10'), 1); insert into ttl_00933_1 values (toDate('2100-10-10'), 2); optimize table ttl_00933_1 final; select * from ttl_00933_1 order by d; -- const DateTime TTL positive drop table if exists ttl_00933_1; create table ttl_00933_1 (b Int, a Int ttl '2000-10-10 00:00:00'::DateTime) engine = MergeTree order by tuple() partition by tuple() settings min_bytes_for_wide_part = 0; show create table ttl_00933_1; insert into ttl_00933_1 values (1, 1); optimize table ttl_00933_1 final; select * from ttl_00933_1; -- const DateTime TTL negative drop table if exists ttl_00933_1; create table ttl_00933_1 (b Int, a Int ttl '2100-10-10 00:00:00'::DateTime) engine = MergeTree order by tuple() partition by tuple() settings min_bytes_for_wide_part = 0; show create table ttl_00933_1; insert into ttl_00933_1 values (1, 1); optimize table ttl_00933_1 final; select * from ttl_00933_1; -- const Date TTL positive drop table if exists ttl_00933_1; create table ttl_00933_1 (b Int, a Int ttl '2000-10-10'::Date) engine = MergeTree order by tuple() partition by tuple() settings min_bytes_for_wide_part = 0; show create table ttl_00933_1; insert into ttl_00933_1 values (1, 1); optimize table ttl_00933_1 final; select * from ttl_00933_1; -- const Date TTL negative drop table if exists ttl_00933_1; create table ttl_00933_1 (b Int, a Int ttl '2100-10-10'::Date) engine = MergeTree order by tuple() partition by tuple() settings min_bytes_for_wide_part = 0; show create table ttl_00933_1; insert into ttl_00933_1 values (1, 1); optimize table ttl_00933_1 final; select * from ttl_00933_1; set send_logs_level = 'fatal'; drop table if exists ttl_00933_1; create table ttl_00933_1 (d DateTime ttl d) engine = MergeTree order by tuple() partition by toSecond(d); -- { serverError ILLEGAL_COLUMN} create table ttl_00933_1 (d DateTime, a Int ttl d) engine = MergeTree order by a partition by toSecond(d); -- { serverError ILLEGAL_COLUMN} create table ttl_00933_1 (d DateTime, a Int ttl 2 + 2) engine = MergeTree order by tuple() partition by toSecond(d); -- { serverError BAD_TTL_EXPRESSION } create table ttl_00933_1 (d DateTime, a Int ttl d - d) engine = MergeTree order by tuple() partition by toSecond(d); -- { serverError BAD_TTL_EXPRESSION } create table ttl_00933_1 (d DateTime, a Int ttl d + interval 1 day) engine = Log; -- { serverError BAD_ARGUMENTS } create table ttl_00933_1 (d DateTime, a Int) engine = Log ttl d + interval 1 day; -- { serverError BAD_ARGUMENTS } drop table if exists ttl_00933_1;