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From: Wojtek Bogusz <Wojtek.Bogusz@fuw.edu.pl>
To: dirk@luedi.tng.oche.de
Cc: postgres@postgres.Berkeley.EDU
Subject: Re: different questions
Date: Wed, 30 Aug 1995 16:51:33 +0200 (MET DST)
Message-ID: <Pine.SUN.3.91.950830164049.20918E-100000@ccmj> (raw)
In-Reply-To: <5smCBOGPJAB@luedi.tng.oche.de>


Hi,

> But what to do if the input data to circle_in has not the correct form

You can use function elog(type, format, var, ...). In order to do it  
#include "utils/log.h" in your C source. type can have a value (from 
log.h):

#define NOTICE  0       /* random info - no special action */
#define WARN    -1      /* Warning error - return to known state */
#define FATAL   1       /* Fatal error - abort process */

So WARN will stop inserting data to the DB and FATAL will also abort
postgres backend. Arguments "format, var, ..." are similar to printf
arguments.

> 2.) Isn't there another possibility to create complexe user types
>     except converting the abstract data to a string, sending it as a String 
>     to postgres, converting it to abstract data, and vice versa. 

I think it is the right and only way :-).

Regards and good luck,
Wojtek Bogusz
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