Question

我需要使用JOOQ的SelectQuery编写带嵌套select和join的查询：

    SELECT *
    FROM (select * from 
    "public"."parent" 
    order by "public"."parent"."setup_time" 
    desc limit 10 offset 0) as "parent1" 
    join "public"."child" 
    on "public"."child"."parent_id" = "parent1"."id" 
    where "public"."child"."name" = 'test'

所以，我写过这样的话：

SelectQuery<ParentRecord> subSelectQuery = context.selectQuery(PARENT);
selectQuery.addJoinOnKey(CHILD, JoinType.JOIN, CHILD.PARENT_ID);

但它会生成类似

的sql代码

join "public"."child" on "public"."child"."parent_id" =  "public"."parent"."id

如何使用别名 parent1 而不是完整的表名＆＃34; public＆＃34;。＆＃34; child＆＃34;。＆＃34; parent_id＆＃34;

Answer 1

我找到了解决方案。

SelectQuery<ParentRecord> selectQuery = context.selectQuery(subSelectQuery.asTable(PARENT.getName()));
selectQuery.addJoin(CHILD, JoinType.JOIN, CHILD.PARENT_ID.eq(PARENT.as(PARENT.getName()).ID));

使用JOOQ的SelectQuery为JOIN使用别名

1 个答案: