Discard millisecond part from timestamp

Question

How can I discard/round the millisecond part, better if the second part is also removed from a timestamp w/o timezone ?

Answer 1

Discard milliseconds:

SELECT DATE_TRUNC('second', CURRENT_TIMESTAMP::timestamp);

2019-08-23 16:42:43

Discard seconds:

SELECT DATE_TRUNC('minute', CURRENT_TIMESTAMP::timestamp);

2019-08-23 16:42:00