mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-25 00:52:02 +00:00
22 lines
1.1 KiB
SQL
22 lines
1.1 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 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 x, count(), uniq(x), avg(x), avg(toNullable(x)), groupArray(x), groupUniqArray(x) FROM t GROUP BY x;
|