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55 lines
3.2 KiB
SQL
55 lines
3.2 KiB
SQL
SET session_timezone = 'UTC';
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SELECT 'The reference time point is 2023-06-30 23:59:30';
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SELECT '───────────────────────────────────────────────';
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SELECT 'The argument is before the reference time point';
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SELECT '───────────────────────────────────────────────';
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WITH
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toDateTime('2023-06-30 23:59:30') AS dt_ref,
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now() AS dt_now,
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date_sub(DAY, 1, dt_now) as dt_before,
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dateDiff(SECOND, dt_ref, dt_now) AS time_shift,
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formatDateTime(dt_before, '%b %e %T') AS syslog_before
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SELECT
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formatDateTime(dt_before - time_shift, '%b %e %T') AS syslog_arg,
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parseDateTimeBestEffort(syslog_before) - time_shift AS res,
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parseDateTimeBestEffortOrNull(syslog_before) - time_shift AS res_null,
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parseDateTimeBestEffortOrZero(syslog_before) - time_shift AS res_zero,
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parseDateTimeBestEffortUS(syslog_before) - time_shift AS res_us,
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parseDateTimeBestEffortUSOrNull(syslog_before) - time_shift AS res_us_null,
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parseDateTimeBestEffortUSOrZero(syslog_before) - time_shift AS res_us_zero,
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parseDateTime64BestEffort(syslog_before) - time_shift AS res64,
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parseDateTime64BestEffortOrNull(syslog_before) - time_shift AS res64_null,
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parseDateTime64BestEffortOrZero(syslog_before) - time_shift AS res64_zero,
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parseDateTime64BestEffortUS(syslog_before) - time_shift AS res64_us,
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parseDateTime64BestEffortUSOrNull(syslog_before) - time_shift AS res64_us_null,
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parseDateTime64BestEffortUSOrZero(syslog_before) - time_shift AS res64_us_zero
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FORMAT Vertical;
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SELECT '──────────────────────────────────────────────';
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SELECT 'The argument is after the reference time point';
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SELECT '──────────────────────────────────────────────';
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WITH
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toDateTime('2023-06-30 23:59:30') AS dt_ref,
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now() AS dt_now,
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date_add(DAY, 1, dt_now) as dt_after,
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dateDiff(SECOND, dt_ref, dt_now) AS time_shift,
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formatDateTime(dt_after, '%b %e %T') AS syslog_after
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SELECT
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formatDateTime(dt_after - time_shift, '%b %e %T') AS syslog_arg,
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parseDateTimeBestEffort(syslog_after) - time_shift AS res,
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parseDateTimeBestEffortOrNull(syslog_after) - time_shift AS res_null,
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parseDateTimeBestEffortOrZero(syslog_after) - time_shift AS res_zero,
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parseDateTimeBestEffortUS(syslog_after) - time_shift AS res_us,
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parseDateTimeBestEffortUSOrNull(syslog_after) - time_shift AS res_us_null,
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parseDateTimeBestEffortUSOrZero(syslog_after) - time_shift AS res_us_zero,
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parseDateTime64BestEffort(syslog_after) - time_shift AS res64,
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parseDateTime64BestEffortOrNull(syslog_after) - time_shift AS res64_null,
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parseDateTime64BestEffortOrZero(syslog_after) - time_shift AS res64_zero,
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parseDateTime64BestEffortUS(syslog_after) - time_shift AS res64_us,
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parseDateTime64BestEffortUSOrNull(syslog_after) - time_shift AS res64_us_null,
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parseDateTime64BestEffortUSOrZero(syslog_after) - time_shift AS res64_us_zero
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FORMAT Vertical;
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