=?UTF-8?Q?Benjamin_Kr=C3=B6ger?= <benjamin(dot)kroeger(at)gmail(dot)com> writes:
> It might help to see the input values that led to the documented output
> values. If you look e.g. at the mixed interval output for style
> `postgres_verbose`, all dimensions are signed exactly opposite to the
> `iso_8601` style.
I believe all the entries in each column of that table represent the
same value. The reason for the sign difference in postgres_verbose
is that it uses "ago" to indicate an overall sign inversion.
regards, tom lane