timezone aware date_trunc function
问题 The following query SELECT the_date FROM date_trunc('day', timestamp with time zone '2001-01-1 00:00:00+0100') as the_date results to the_date 2000-12-31 00:00 Is there a way to tell date_trunc to do day/month/year conversions based on the timezone it is feeded with? The expected output would be: 2001-01-1 00:00+0100 回答1: You need to specify at which time zone you want it to show select date_trunc( 'day', timestamp with time zone '2001-01-1 00:00:00+0100' at time zone '-02' ) as the_date; the