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我在postgres中有一個查詢問題,表cgporders_items有一個名爲return的字段,我不能用這個查詢得到該字段的實際結果,它返回我al ceros 。在postgreSQL中選擇一個名爲「return」的字段
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";
實際上有大量的行符合選擇條件,但它的「CgporderItem」迴歸CERO .return AS「CgporderItem__return」
如果我做出這樣選擇「迴歸」一個簡單的查詢從cgporders_items它的工作原理。但在這個查詢中它不起作用。
你能幫助我嗎?
您是否試過''CgporderItem「。」return「AS」CgporderItem__return「'?返回是一個保留字,它必須被引用。 – fvu
是的,我已經嘗試過,但它也不起作用 – juanpscotto