Subject: SELECTing into usertype, how to do it?
From: Mario Splivalo <mario.splivalo@mobart.hr>
Reply-To: mario.splivalo@mobart.hr
To: pgsql-sql@postgresql.org
Content-Type: text/plain
Organization: Mob-Art
Date: Tue, 25 Apr 2006 14:03:07 +0200
Message-Id: <1145966587.8822.5.camel@localhost.localdomain>
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I have a type, declared like this:

CREATE TYPE type_a AS (
	member_a varchar,
	member_b bool
);

There is also a table:

CREATE TABLE table_a (
	col_a varchar,
	col_b bool,
	col_c int4
);

Now, in a function, I declared type_var variable of type type_a:

DECLARE	type_var type_a;

And then, when I want to fill in the type_var, i do this:

	type_var.member_a := col_a FROM table_a WHERE col_c = 5;
	type_var.member_b := col_b FROM table_a WHERE col_c = 5;

Is there a way to fill in the type_var, but from just one statement?
Here I have two 'selects' on table_a, and that seems as bit expensive
when iterated a lot of times.

I guess I could do:
	SELECT col_a, col_b INTO type_var.member_a, type_var.member_b FROM
table_A WHERE col_c = 5;

but that is a bit hard to read :)

Are there more options on doing what I'd like to do?

	Mario
-- 
Mario Splivalo
Mob-Art
mario.splivalo@mobart.hr

"I can do it quick, I can do it cheap, I can do it well. Pick any two."