Steve Crawford <[EMAIL PROTECTED]> writes:
> But PG doesn't follow the same rules in subtracting timestamptz values
> so operations involving timestamps and intervals are (sometimes) not
> reversible:

Yeah.  timestamp_mi is performing a justify_hours call, which it should
not, but removing that call changes a lot of the regression test
outputs.  So we've been afraid to change it.  You can find more about
that in the archives.

                        regards, tom lane

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