Re: Postgresql 8.3X supports Arrays of Composite Types?

From: Robson Fidalgo <robson(dot)fidalgo(at)gmail(dot)com>
To: pgsql-docs(at)postgresql(dot)org, pgsql-general(at)postgresql(dot)org
Subject: Re: Postgresql 8.3X supports Arrays of Composite Types?
Date: 2009-04-19 21:08:18
Message-ID: 41534c40904191408t7f9b4db7lb48889ecb0abf312@mail.gmail.com
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>
> Hello,
> I am using postgresql 8.3X and I created a table (see example below) that
> has an attribute that is an Array of a Composite Type (ROW). However, I do
> not know how can I insert a record in this table.
>
> Well, I've searched the mailing lists and have found little said about the
> OR features. In postgres 8.3X on-line documentation (
> http://www.postgresql.org/docs/8.3/static/arrays.html) I found "Arrays of
> any built-in or user-defined base type, enum type, or composite type can be
> created", however there is no example that explains how can I do an insert
> into an attribute that is an Array of Composite Type. Considering the
> example below, "persons have N phones" I create (with success) the Person
> table with an array of phones, but I have not success with Insert values.
> There is some one that can help me?
>
> Thanks in advances,
>
> Robson
>
> Example:
>
> CREATE table phone (
> cod varchar,
> num varchar);
>
> CREATE TABLE person (
> name varchar,
> telephone phone[]);
>
> Until here is everything ok, but I have not success with insert values,
> then I tried:
>
> 1)insert into person values ('Joe', '{("1","1111"),("2","2222") }');
> 2)insert into person values ('Joe', array[('1','1111'),('2','2222')]);
> 3)insert into person values ('Joe',
> array[row('1','1111'),row('2','2222')]);
> 4)insert into person values ('Joe',
> _phone[phone('1','1111'),phone('2','2222')]);**
> ** considering _phone = name of array type (automatically created by
> postgres) and phone = name of composite type (also automatically created by
> postgres)
>

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