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Re: Problem with CAST-ing - am I missing something?

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On 10/25/23 17:26, Christophe Pettus wrote:


On Oct 25, 2023, at 17:21, Pól Ua Laoínecháin <linehanp@xxxxxx> wrote:

SELECT (ts, te)::TSTZRANGE FROM test;

That syntax doesn't mean what you probably think it does.  (ts, te) defines a record type with two fields.  PostgreSQL constructs that, and then attempts to apply the cast.  There's no conversion path from that to TSTZRANGE, so the system complains.  It's imaginable, I guess, that such a path could be added, but the right way to do it is what you do here:

SELECT TSTZRANGE(ts, te) FROM test;


Or do something like:

 select '[2023-10-25 14:33:00, 2023-10-25 15:56:00)'::TSTZRANGE;
                       tstzrange
-------------------------------------------------------
 ["10/25/2023 14:33:00 PDT","10/25/2023 15:56:00 PDT")

per:

https://www.postgresql.org/docs/current/rangetypes.html#RANGETYPES-IO




--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx






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