ClickHouse/dbms/tests/queries/0_stateless/00572_aggregation_by_empty_set.sql

24 lines
1.4 KiB
SQL

CREATE TEMPORARY TABLE t (x UInt8);
SET empty_result_for_aggregation_by_empty_set = 0;
SELECT count() FROM system.one WHERE 0;
SELECT count() FROM system.one WHERE rand() < 0;
SELECT count() FROM system.one WHERE 1;
SELECT count(), uniq(x), avg(x), avg(toNullable(x)), groupArray(x), groupUniqArray(x) FROM t;
SELECT count(), uniq(x), avg(x), avg(toNullable(x)), groupArray(x), groupUniqArray(x) FROM (SELECT * FROM t UNION ALL SELECT * FROM t);
SELECT count(), uniq(x), avg(x), avg(toNullable(x)), groupArray(x), groupUniqArray(x) FROM remote('127.0.0.{1..10}', system.one) WHERE (rand() AS x) < 0;
SELECT x, count(), uniq(x), avg(x), avg(toNullable(x)), groupArray(x), groupUniqArray(x) FROM t GROUP BY x;
SET empty_result_for_aggregation_by_empty_set = 1;
SELECT count() FROM system.one WHERE 0;
SELECT count() FROM system.one WHERE rand() < 0;
SELECT count() FROM system.one WHERE 1;
SELECT count(), uniq(x), avg(x), avg(toNullable(x)), groupArray(x), groupUniqArray(x) FROM t;
SELECT count(), uniq(x), avg(x), avg(toNullable(x)), groupArray(x), groupUniqArray(x) FROM (SELECT * FROM t UNION ALL SELECT * FROM t);
SELECT count(), uniq(x), avg(x), avg(toNullable(x)), groupArray(x), groupUniqArray(x) FROM remote('127.0.0.{1..10}', system.one) WHERE (rand() AS x) < 0;
SELECT x, count(), uniq(x), avg(x), avg(toNullable(x)), groupArray(x), groupUniqArray(x) FROM t GROUP BY x;