ClickHouse/tests/queries/0_stateless/01710_minmax_count_projection.sql
2021-10-16 18:13:41 +08:00

46 lines
1.9 KiB
SQL

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 _partition_value.1 = 10 group by _partition_id order by _partition_id;
-- fuzz crash
select min(i) from d where 1 = _partition_value.1;
drop table d;
drop table if exists no_final_mark;
drop table if exists has_final_mark;
drop table if exists mixed_final_mark;
create table no_final_mark (i int, j int) engine MergeTree partition by i % 2 order by j settings index_granularity = 10, write_final_mark = 0;
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 no_final_mark select number, number from numbers(10000);
insert into has_final_mark select number, number from numbers(10000);
alter table mixed_final_mark attach partition 0 from no_final_mark;
alter table mixed_final_mark attach partition 1 from has_final_mark;
set max_rows_to_read = 2;
select min(j) from no_final_mark;
select min(j) from has_final_mark;
select min(j) from mixed_final_mark;
select min(j), max(j) from no_final_mark; -- {serverError TOO_MANY_ROWS}
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;