Re: Subselect with no records results in final empty set

It works as you sugested, this is the syntax I used:
SELECT * FROM
(SELECT 1 AS t1, 2 AS t2) AS t1
LEFT JOIN (SELECT * FROM atc WHERE id = '1231222') AS t2 ON (null)

Thank you.

------ Original Message ------
From: "David G Johnston" <david.g.johnston@gmail.com>
To: pgsql-general@postgresql.org
Sent: 1/29/2015 10:03:38 PM
Subject: Re: [GENERAL] Subselect with no records results in final empty
set

>Sterpu Victor wrote
>>  Hello
>>
>>  I have this select where the last subselect will return a empty set
>>and
>>  because of this the whole select will be empty.
>>  How can I change this syntax so I will have a row result even if the
>>  last select is empty?
>>
>>  SELECT * FROM (SELECT 1 AS t1, 2 AS t2) as t, (SELECT 3 AS t3) as s,
>>  (SELECT * FROM atc WHERE id = '1231222' LIMIT 1 OFFSET 0) AS s3;
>
>Use explicit join syntax; and then pick the "LEFT [OUTER] JOIN"
>variant.
>
>SELECT
>FROM t
>LEFT JOIN s3 ON (TRUE)
>
>David J.
>
>
>
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