Re: when are the xxxin() functions called

From: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
To: Rui Hai Jiang <ruihaijiang(at)msn(dot)com>
Cc: PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: when are the xxxin() functions called
Date: 2015-05-08 01:19:32
Message-ID: CAB7nPqRQD=_=Dvi9EuUUSdwtiAf8H7eRa6RoGkspwwO1+Eh2Wg@mail.gmail.com
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On Thu, May 7, 2015 at 11:49 PM, Rui Hai Jiang <ruihaijiang(at)msn(dot)com> wrote:
> Does anyone know when are charin(),int2in() and int4in() called?

Those are input functions for respectively the types char, smallint
and int. Look at the docs here for more details:
http://www.postgresql.org/docs/devel/static/sql-createtype.html
"The input_function converts the type's external textual
representation to the internal representation used by the operators
and functions defined for the type."
Regards,
--
Michael

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