Konstantinos Agouros <elwood@agouros.de> writes:
> what does the @ in the output of [intervals] mean?
AFAICT it's just noise, perhaps once meant to remind you that you're
looking at an interval rather than an absolute time. Thomas, any
recollections here?
The '@' doesn't appear in the ISO datestyle, btw, only Postgres
datestyle.
regards, tom lane