Select a field called "return" in postgreSQL - sql

Question

I'm having a problem with a query in postgres, the table cgporders_items has a field called return, I cannot get actual result of that field with this query, it returns me al ceros.
SELECT "Cgporder".id AS "Cgporder__id"
,"Sale".preorder_number AS "Sale__preorder_number"
,"Contact".id AS "Contact__id"
,"Contact".NAME AS "Contact__name"
,"Ptype".NAME AS "Ptype__name"
,(
SELECT code
FROM products
WHERE id = "CgporderItem".parent_id
) AS "Product__parent_code"
,"Product".id AS "Product__id"
,"Product".code AS "Product__code"
,"Product".NAME AS "Product__name"
,"CgporderItem".quantity AS "CgporderItem__quantity"
,"CgporderItem".return AS "CgporderItem__return"
,"CgporderItem".cep_id AS "CgporderItem__cep"
FROM cgporders AS "Cgporder"
INNER JOIN contacts AS "Contact" ON ("Contact".id = "Cgporder".contact_id)
INNER JOIN cgporders_items AS "CgporderItem" ON ("Cgporder".id = "CgporderItem".cgporder_id)
INNER JOIN products AS "Product" ON ("Product".id = "CgporderItem".product_id)
INNER JOIN ptypes AS "Ptype" ON ("Ptype".id = "Product".ptype_id)
LEFT JOIN cgporders_sales AS "CgporderSale" ON ("Cgporder".id = "CgporderSale".cgporder_id)
LEFT JOIN sales AS "Sale" ON ("Sale".id = "CgporderSale".sale_id)
WHERE "CgporderItem".parent_id != 0
AND "Cgporder"."issue_date" >= '2015-11-27'
AND "Cgporder"."issue_date" <= '2015-11-27'
AND "Cgporder"."status" = 'confirmed'
ORDER BY "Ptype".NAME
,"Product"."code";
There are actually a lots of rows that matches the select condition, but it return cero on "CgporderItem".return AS "CgporderItem__return"
If I make a simple query like select "return" from cgporders_items it works. But in this query it does not work.
Can you help me please?

Answer 1

"return" is a reserved word in SQL, but not in Postgres. See the list here. The following code works find in Postgres (SQL Fiddle is here):
create table dum (return int);
select dum.return from dum;
Your problem is something else. If I had to guess, the where clause is too restrictive (the condition on dates is a bit suspect).