mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-11 18:14:03 +00:00
12 lines
1.1 KiB
SQL
12 lines
1.1 KiB
SQL
-- We add 1, because function toString has special behaviour for zero datetime
|
|
WITH toDateTime(1 + rand() % 0xFFFFFFFF) AS t SELECT count() FROM numbers(1000000) WHERE formatDateTime(t, '%F %T') != toString(t);
|
|
WITH toDateTime(1 + rand() % 0xFFFFFFFF) AS t SELECT count() FROM numbers(1000000) WHERE formatDateTime(t, '%Y-%m-%d %H:%M:%S') != toString(t);
|
|
WITH toDateTime(1 + rand() % 0xFFFFFFFF) AS t SELECT count() FROM numbers(1000000) WHERE formatDateTime(t, '%Y-%m-%d %R:%S') != toString(t);
|
|
WITH toDateTime(1 + rand() % 0xFFFFFFFF) AS t SELECT count() FROM numbers(1000000) WHERE formatDateTime(t, '%F %R:%S') != toString(t);
|
|
|
|
WITH toDate(today() + rand() % 4096) AS t SELECT count() FROM numbers(1000000) WHERE formatDateTime(t, '%F') != toString(t);
|
|
|
|
-- Note: in some other timezones, daylight saving time change happens in midnight, so the first time of day is 01:00:00 instead of 00:00:00.
|
|
-- Stick to Moscow timezone to avoid this issue.
|
|
WITH toDate(today() + rand() % 4096) AS t SELECT count() FROM numbers(1000000) WHERE formatDateTime(t, '%F %T', 'Europe/Moscow') != toString(toDateTime(t, 'Europe/Moscow'));
|