使用执行查询在左连接子句中添加 =value

使用 grails 3.3.8 和 Mysql DB 5.5.x 版本。我已经完成了这个查询:


 String query = $/

            select new Map( i1.id as id,i1.name as name)

            from CustomerComposition as c1

            inner join c1.instrument as i1

            left join i1.analisys as a1,

            Instrument as i2

            left join i2.analisys as a2,

            Instrument as i3

            left join i3.analisys as a3

            where 

            i1.id=i2.id and i1.id=i3.id and

            c1.portfolio.id=:ptfId and a1.phase.id=:p1Id and a2.phase.id=:p2Id and a3.phase.id=:p3Id 

        /$


        List composition = CustomerComposition.executeQuery(query,

                [ptfId: ptfId, p1Id: phase[0], p2Id: phase[1], p3Id: phase[2]])

左连接不起作用。然后我意识到它不起作用,因为我在 WHERE 中放置了一个子句。我仔细检查了简单的 SQL 语句,一旦将条件移出 where,它确实可以工作。一个简单的截图只是为了澄清,之前它不起作用:


SELECT

instrument1_.id

FROM

    customer_ptf_composition customerpt0_

    INNER JOIN instrument instrument1_ ON customerpt0_.instrument_id = instrument1_.id

    LEFT JOIN analisys analisys4_ ON instrument1_.id = analisys4_.instrument_id


WHERE

customerpt0_.portfolio_id =1216 

    AND analisys4_.phase_id =111

之后,由于左/右连接的工作方式,它可以工作:


SELECT

instrument1_.id

FROM

    customer_ptf_composition customerpt0_

    INNER JOIN instrument instrument1_ ON customerpt0_.instrument_id = instrument1_.id

    LEFT JOIN analisys analisys4_ ON instrument1_.id = analisys4_.instrument_id AND analisys4_.phase_id =111 


WHERE

customerpt0_.portfolio_id =1216

现在我的问题是如何将“and field=value”放在 GORM 的左连接旁边?


幕布斯7119047
浏览 133回答 1
1回答

忽然笑

您可以使用 WITH 子句来实现这一点:left join i3.analisys a3 WITH a3.something = :someValue
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