-- { echo } -- DateTime64 vs DateTime64 same scale SELECT age('second', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), toDateTime64('1927-01-01 00:00:10', 0, 'UTC')); 10 SELECT age('second', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), toDateTime64('1927-01-01 00:10:00', 0, 'UTC')); 600 SELECT age('second', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), toDateTime64('1927-01-01 01:00:00', 0, 'UTC')); 3600 SELECT age('second', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), toDateTime64('1927-01-01 01:10:10', 0, 'UTC')); 4210 SELECT age('minute', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), toDateTime64('1927-01-01 00:10:00', 0, 'UTC')); 10 SELECT age('minute', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), toDateTime64('1927-01-01 10:00:00', 0, 'UTC')); 600 SELECT age('hour', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), toDateTime64('1927-01-01 10:00:00', 0, 'UTC')); 10 SELECT age('day', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), toDateTime64('1927-01-02 00:00:00', 0, 'UTC')); 1 SELECT age('month', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), toDateTime64('1927-02-01 00:00:00', 0, 'UTC')); 1 SELECT age('year', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), toDateTime64('1928-01-01 00:00:00', 0, 'UTC')); 1 -- DateTime64 vs DateTime64 different scale SELECT age('second', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), toDateTime64('1927-01-01 00:00:10', 3, 'UTC')); 10 SELECT age('second', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), toDateTime64('1927-01-01 00:10:00', 3, 'UTC')); 600 SELECT age('second', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), toDateTime64('1927-01-01 01:00:00', 3, 'UTC')); 3600 SELECT age('second', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), toDateTime64('1927-01-01 01:10:10', 3, 'UTC')); 4210 SELECT age('minute', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), toDateTime64('1927-01-01 00:10:00', 3, 'UTC')); 10 SELECT age('minute', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), toDateTime64('1927-01-01 10:00:00', 3, 'UTC')); 600 SELECT age('hour', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), toDateTime64('1927-01-01 10:00:00', 3, 'UTC')); 10 SELECT age('day', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), toDateTime64('1927-01-02 00:00:00', 3, 'UTC')); 1 SELECT age('month', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), toDateTime64('1927-02-01 00:00:00', 3, 'UTC')); 1 SELECT age('year', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), toDateTime64('1928-01-01 00:00:00', 3, 'UTC')); 1 -- With DateTime -- DateTime64 vs DateTime SELECT age('second', toDateTime64('2015-08-18 00:00:00', 0, 'UTC'), toDateTime('2015-08-18 00:00:00', 'UTC')); 0 SELECT age('second', toDateTime64('2015-08-18 00:00:00', 0, 'UTC'), toDateTime('2015-08-18 00:00:10', 'UTC')); 10 SELECT age('second', toDateTime64('2015-08-18 00:00:00', 0, 'UTC'), toDateTime('2015-08-18 00:10:00', 'UTC')); 600 SELECT age('second', toDateTime64('2015-08-18 00:00:00', 0, 'UTC'), toDateTime('2015-08-18 01:00:00', 'UTC')); 3600 SELECT age('second', toDateTime64('2015-08-18 00:00:00', 0, 'UTC'), toDateTime('2015-08-18 01:10:10', 'UTC')); 4210 -- DateTime vs DateTime64 SELECT age('second', toDateTime('2015-08-18 00:00:00', 'UTC'), toDateTime64('2015-08-18 00:00:00', 3, 'UTC')); 0 SELECT age('second', toDateTime('2015-08-18 00:00:00', 'UTC'), toDateTime64('2015-08-18 00:00:10', 3, 'UTC')); 10 SELECT age('second', toDateTime('2015-08-18 00:00:00', 'UTC'), toDateTime64('2015-08-18 00:10:00', 3, 'UTC')); 600 SELECT age('second', toDateTime('2015-08-18 00:00:00', 'UTC'), toDateTime64('2015-08-18 01:00:00', 3, 'UTC')); 3600 SELECT age('second', toDateTime('2015-08-18 00:00:00', 'UTC'), toDateTime64('2015-08-18 01:10:10', 3, 'UTC')); 4210 -- With Date -- DateTime64 vs Date SELECT age('day', toDateTime64('2015-08-18 00:00:00', 0, 'UTC'), toDate('2015-08-19', 'UTC')); 1 -- Date vs DateTime64 SELECT age('day', toDate('2015-08-18', 'UTC'), toDateTime64('2015-08-19 00:00:00', 3, 'UTC')); 1 -- Same thing but const vs non-const columns SELECT age('second', toDateTime64('1927-01-01 00:00:00', 0, 'UTC'), materialize(toDateTime64('1927-01-01 00:00:10', 0, 'UTC'))); 10 SELECT age('second', toDateTime64('1927-01-01 00:00:00', 6, 'UTC'), materialize(toDateTime64('1927-01-01 00:00:10', 3, 'UTC'))); 10 SELECT age('second', toDateTime64('2015-08-18 00:00:00', 0, 'UTC'), materialize(toDateTime('2015-08-18 00:00:10', 'UTC'))); 10 SELECT age('second', toDateTime('2015-08-18 00:00:00', 'UTC'), materialize(toDateTime64('2015-08-18 00:00:10', 3, 'UTC'))); 10 SELECT age('day', toDateTime64('2015-08-18 00:00:00', 0, 'UTC'), materialize(toDate('2015-08-19', 'UTC'))); 1 SELECT age('day', toDate('2015-08-18', 'UTC'), materialize(toDateTime64('2015-08-19 00:00:00', 3, 'UTC'))); 1 -- Same thing but non-const vs const columns SELECT age('second', materialize(toDateTime64('1927-01-01 00:00:00', 0, 'UTC')), toDateTime64('1927-01-01 00:00:10', 0, 'UTC')); 10 SELECT age('second', materialize(toDateTime64('1927-01-01 00:00:00', 6, 'UTC')), toDateTime64('1927-01-01 00:00:10', 3, 'UTC')); 10 SELECT age('second', materialize(toDateTime64('2015-08-18 00:00:00', 0, 'UTC')), toDateTime('2015-08-18 00:00:10', 'UTC')); 10 SELECT age('second', materialize(toDateTime('2015-08-18 00:00:00', 'UTC')), toDateTime64('2015-08-18 00:00:10', 3, 'UTC')); 10 SELECT age('day', materialize(toDateTime64('2015-08-18 00:00:00', 0, 'UTC')), toDate('2015-08-19', 'UTC')); 1 SELECT age('day', materialize(toDate('2015-08-18', 'UTC')), toDateTime64('2015-08-19 00:00:00', 3, 'UTC')); 1 -- Same thing but non-const vs non-const columns SELECT age('second', materialize(toDateTime64('1927-01-01 00:00:00', 0, 'UTC')), materialize(toDateTime64('1927-01-01 00:00:10', 0, 'UTC'))); 10 SELECT age('second', materialize(toDateTime64('1927-01-01 00:00:00', 6, 'UTC')), materialize(toDateTime64('1927-01-01 00:00:10', 3, 'UTC'))); 10 SELECT age('second', materialize(toDateTime64('2015-08-18 00:00:00', 0, 'UTC')), materialize(toDateTime('2015-08-18 00:00:10', 'UTC'))); 10 SELECT age('second', materialize(toDateTime('2015-08-18 00:00:00', 'UTC')), materialize(toDateTime64('2015-08-18 00:00:10', 3, 'UTC'))); 10 SELECT age('day', materialize(toDateTime64('2015-08-18 00:00:00', 0, 'UTC')), materialize(toDate('2015-08-19', 'UTC'))); 1 SELECT age('day', materialize(toDate('2015-08-18', 'UTC')), materialize(toDateTime64('2015-08-19 00:00:00', 3, 'UTC'))); 1