Re: Casting Point to Text
От
Tom Lane
Тема
Re: Casting Point to Text
Дата
Msg-id
29593.1070981803@sss.pgh.pa.us
Ответ на
Casting Point to Text (Martin Hart)
Список
Дерево обсуждения
Casting Point to Text Martin Hart <martin@zsdfherg.com>
Re: Casting Point to Text Tom Lane <tgl@sss.pgh.pa.us>
Re: Casting Point to Text Martin Hart <martin@zsdfherg.com>
Re: Casting Point to Text Tom Lane <tgl@sss.pgh.pa.us>
Martin Hart writes:
> db=# select '(1,2)'::point::text;
> ERROR: cannot cast type point to text
> the only way i have been able to achieve it is to write a plpgsql function:
> while this appears to work fine - I am wondering if I am missing something
> fundamental - specifically whether or not there is an inbuilt way to do it
> (which I guess there must be for the plpgsql function to work)?
plpgsql is effectively doing
regression=# select textin(point_out('(1,2)'::point));
textin
--------
(1,2)
(1 row)
There is not a one-step cast function for this. (Not for any
fundamental reason, just a lack of round tuits.)
regards, tom lane
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