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CREATE TYPE with array

From: Wolfgang Drotschmann <drotschm(at)fgan(dot)de>
To: pgsql-novice(at)postgresql(dot)org
Subject: CREATE TYPE with array
Date: 2003-07-22 07:02:22
Message-ID: 3F1CE17E.E79DEA2F@fgan.de (view raw or flat)
Thread:
Lists: pgsql-novice
Hi folks,

I tried to create a new type with an array in it.  So I took an example
from (the german translation of) "PostgreSQL: Introduction and Concepts"
by Bruce Momjian.

This example says:

create type int4array (
       input=array_in,output=array_out,
       internallength=variable,element=int4
);


Now, psql complains:

ERROR:  TypeCreate: function array_out(int4array) does not exist

I'm using PostgreSQL 7.3.2 (came with SuSE Linux 8.1).
Have things changed, or did I overlook something?

If I ask psql

\df array

array_out (among others) appears in the list of functions.
Myfirst guess is that array_{in,out} is somehow predefined, so that I
have not to define functions by hand - or is this wrong?

Thanks!
	Wolfgang

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