Mike Castle <dalgoda(at)ix(dot)netcom(dot)com> writes:
> Are these "supported" functions? Should I feel safe in using them and they
> won't go away in the future?
Thomas Lockhart would be the authority on this, but my impression is
that tinterval is deprecated and will eventually go away in favor of
the SQL-standard interval type. If you've found functions that exist
for tinterval and not for interval, then that's an item for the TODO
list --- please submit details.
regards, tom lane