drop table if exists d; create table d (i int, j int) engine MergeTree partition by i % 2 order by tuple() settings index_granularity = 1; insert into d select number, number from numbers(10000); set max_rows_to_read = 2, allow_experimental_projection_optimization = 1; select min(i), max(i), count() from d; select min(i), max(i), count() from d group by _partition_id order by _partition_id; select min(i), max(i), count() from d where _partition_value.1 = 0 group by _partition_id order by _partition_id; select min(i), max(i), count() from d where moduloLegacy(i, 2) = 0 group by _partition_id order by _partition_id; select min(i), max(i), count() from d where _partition_value.1 = 10 group by _partition_id order by _partition_id; -- fuzz crash select min(i) from d where 1 = _partition_value.1; -- fuzz crash https://github.com/ClickHouse/ClickHouse/issues/37151 SELECT min(i), max(i), count() FROM d WHERE (_partition_value.1) = 0 GROUP BY ignore(bitTest(ignore(NULL), 65535), NULL, (_partition_value.1) = 7, '10.25', bitTest(NULL, -9223372036854775808), NULL, ignore(ignore(-2147483647, NULL)), 1024), _partition_id ORDER BY _partition_id ASC NULLS FIRST; drop table d; drop table if exists has_final_mark; drop table if exists mixed_final_mark; create table has_final_mark (i int, j int) engine MergeTree partition by i % 2 order by j settings index_granularity = 10, write_final_mark = 1; create table mixed_final_mark (i int, j int) engine MergeTree partition by i % 2 order by j settings index_granularity = 10; set max_rows_to_read = 100000; insert into has_final_mark select number, number from numbers(10000); alter table mixed_final_mark attach partition 1 from has_final_mark; set max_rows_to_read = 2; select min(j) from has_final_mark; select min(j) from mixed_final_mark; select min(j), max(j) from has_final_mark; set max_rows_to_read = 5001; -- one normal part 5000 + one minmax_count_projection part 1 select min(j), max(j) from mixed_final_mark; -- The first primary expr is the same of some partition column drop table if exists t; create table t (server_date Date, something String) engine MergeTree partition by (toYYYYMM(server_date), server_date) order by (server_date, something); insert into t values ('2019-01-01', 'test1'), ('2019-02-01', 'test2'), ('2019-03-01', 'test3'); select count() from t; drop table t; drop table if exists d; create table d (dt DateTime, j int) engine MergeTree partition by (toDate(dt), ceiling(j), toDate(dt), CEILING(j)) order by tuple(); insert into d values ('2021-10-24 10:00:00', 10), ('2021-10-25 10:00:00', 10), ('2021-10-26 10:00:00', 10), ('2021-10-27 10:00:00', 10); select min(dt), max(dt), count() from d where toDate(dt) >= '2021-10-25'; -- fuzz crash select min(dt), max(dt), count(toDate(dt) >= '2021-10-25') from d where toDate(dt) >= '2021-10-25'; select count() from d group by toDate(dt); -- fuzz crash SELECT min(dt), count(ignore(ignore(ignore(tupleElement(_partition_value, 'xxxx', NULL) = NULL), NULL, NULL, NULL), 0, '10485.76', NULL)), max(dt), count(toDate(dt) >= '2021-10-25') FROM d WHERE toDate(dt) >= '2021-10-25'; -- fuzz crash SELECT pointInEllipses(min(j), NULL), max(dt), count('0.0000000007') FROM d WHERE toDate(dt) >= '2021-10-25'; SELECT min(j) FROM d PREWHERE ceil(j) <= 0; SELECT min(dt) FROM d PREWHERE ((0.9998999834060669 AND 1023) AND 255) <= ceil(j); SELECT count('') AND NULL FROM d PREWHERE ceil(j) <= NULL; drop table d; -- count variant optimization drop table if exists test; create table test (id Int64, d Int64, projection dummy(select * order by id)) engine MergeTree order by id; insert into test select number, number from numbers(1e3); select count(if(d=4, d, 1)) from test settings force_optimize_projection = 1; select count(d/3) from test settings force_optimize_projection = 1; select count(if(d=4, Null, 1)) from test settings force_optimize_projection = 1; -- { serverError 584 } drop table test;