| From: | David Fetter <david(at)fetter(dot)org> | 
|---|---|
| To: | Robson Fidalgo <rdnf(at)cin(dot)ufpe(dot)br> | 
| Cc: | pgsql-docs(at)postgresql(dot)org, pgsql-general(at)postgresql(dot)org | 
| Subject: | Re: [GENERAL] Postgresql 8.3X supports Arrays of Composite Types? | 
| Date: | 2009-04-19 23:56:19 | 
| Message-ID: | 20090419235619.GB10700@fetter.org | 
| Views: | Whole Thread | Raw Message | Download mbox | Resend email | 
| Thread: | |
| Lists: | pgsql-docs pgsql-general | 
On Sun, Apr 19, 2009 at 06:03:26PM -0300, Robson Fidalgo wrote:
> 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.
You want a normalized table anyhow.  If you want something
denormalized, use a view.
> Example:
> 
> CREATE table phone (
>   cod varchar,
>   num varchar);
> 
> CREATE TABLE person (
>   name varchar,
>   telephone phone[]);
This is better as:
CREATE TABLE phone (
    cod VARCHAR,
    num VARCHAR,
    PRIMARY KEY(cod, num)
);
CREATE TABLE person (
    name varchar,
    PRIMARY KEY(name)
)
CREATE TABLE person_phone (
    name VARCHAR NOT NULL REFERENCES person(name),
    cod VARCHAR,
    num VARCHAR,
    FOREIGN KEY(cod, num) REFERENCES phone(cod, num),
    PRIMARY KEY(name, cod, num)
);
Cheers,
David.
-- 
David Fetter <david(at)fetter(dot)org> http://fetter.org/
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