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https://github.com/ClickHouse/ClickHouse.git
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77 lines
3.1 KiB
SQL
77 lines
3.1 KiB
SQL
set group_by_two_level_threshold = 100000;
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set enable_positional_arguments = 1;
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drop table if exists test;
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drop table if exists test2;
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create table test(x1 Int, x2 Int, x3 Int) engine=Memory();
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insert into test values (1, 10, 100), (10, 1, 10), (100, 100, 1);
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-- { echo }
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select x3, x2, x1 from test order by 1;
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select x3, x2, x1 from test order by x3;
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select x3, x2, x1 from test order by 1 desc;
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select x3, x2, x1 from test order by x3 desc;
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insert into test values (1, 10, 100), (10, 1, 10), (100, 100, 1);
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select x3, x2 from test group by x3, x2 order by x3;
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select x3, x2 from test group by 1, 2 order by x3;
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select x1, x2, x3 from test order by x3 limit 1 by x3;
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select x1, x2, x3 from test order by 3 limit 1 by 3;
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select x1, x2, x3 from test order by x3 limit 1 by x1;
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select x1, x2, x3 from test order by 3 limit 1 by 1;
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explain syntax select x3, x2, x1 from test order by 1;
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explain syntax select x3 + 1, x2, x1 from test order by 1;
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explain syntax select x3, x3 - x2, x2, x1 from test order by 2;
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explain syntax select x3, if(x3 > 10, x3, plus(x1, x2)), x1 + x2 from test order by 2;
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explain syntax select max(x1), x2 from test group by 2 order by 1, 2;
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explain syntax select 1 + greatest(x1, 1), x2 from test group by 1, 2;
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select max(x1), x2 from test group by 1, 2; -- { serverError 43 }
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select 1 + max(x1), x2 from test group by 1, 2; -- { serverError 43 }
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explain syntax select x1 + x3, x3 from test group by 1, 2;
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create table test2(x1 Int, x2 Int, x3 Int) engine=Memory;
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insert into test2 values (1, 10, 100), (10, 1, 10), (100, 100, 1);
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select x1, x1 * 2, max(x2), max(x3) from test2 group by 2, 1, x1 order by 1, 2, 4 desc, 3 asc;
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select a, b, c, d, e, f from (select 44 a, 88 b, 13 c, 14 d, 15 e, 16 f) t group by 1,2,3,4,5,6 order by a;
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explain syntax select plus(1, 1) as a group by a;
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select substr('aaaaaaaaaaaaaa', 8) as a group by a order by a;
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select substr('aaaaaaaaaaaaaa', 8) as a group by substr('aaaaaaaaaaaaaa', 8) order by a;
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select b from (select 5 as a, 'Hello' as b order by a);
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select b from (select 5 as a, 'Hello' as b group by a);
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select b from (select 5 as a, 'Hello' as b order by 1);
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drop table if exists tp2;
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create table tp2(first_col String, second_col Int32) engine = MergeTree() order by tuple();
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insert into tp2 select 'bbb', 1;
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insert into tp2 select 'aaa', 2;
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select count(*) from (select first_col, count(second_col) from tp2 group by 1);
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select total from (select first_col, count(second_col) as total from tp2 group by 1);
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select first_col from (select first_col, second_col as total from tp2 order by 1 desc);
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select first_col from (select first_col, second_col as total from tp2 order by 2 desc);
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select max from (select max(first_col) as max, second_col as total from tp2 group by 2) order by 1;
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with res as (select first_col from (select first_col, second_col as total from tp2 order by 2 desc) limit 1)
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select * from res;
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drop table if exists test;
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create table test
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(
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`id` UInt32,
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`time` UInt32,
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index `id` (`id`) type set(0) granularity 3,
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index `time` (`time`) type minmax granularity 3
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) engine = MergeTree()
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order by (`time`);
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select count(*) as `value`, 0 as `data` from test group by `data`;
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drop table test;
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