Knex多重连接产生重复的结果

Question

我有3张桌子（更多，但现在已经3张了）

• project.project（id，..）
• project.like（id，project_id，member_id）
• project.comment（id，project_id，member_id，内容等）

我尝试通过以下方式加入这3条信息：

主要查询

    let query = knex
        .select(this.options.fields)
        .modify(addLikes3, this.options)
        .modify(addComment, this.options)
        .from("project.project")
        .groupBy("project.project.id")
        .debug()

添加喜欢

let addLikes3 = (queryBuilder, options) => {
    if (options.actions.includes("likes")){
        queryBuilder
            .select(
                knex.raw("CASE " +
                    "WHEN project.like.project_id IS NULL THEN NULL " +
                    "ELSE array_agg(json_build_object(" +
                    "'id', project.like.id," +
                    "'member_id', project.like.member_id" +
                    ")) " +
                    "END as likes"
                ))
    }
    if (options.actions.includes("count_likes")){
        queryBuilder
            .count("project.like.id as count_likes")
    }
    if (options.actions.includes("count_likes") || options.actions.includes("likes")){
        queryBuilder
            .leftJoin("project.like", "project.like.project_id", "project.project.id")
            .groupBy("project.like.project_id")
    }
};

添加评论

let addComment = (queryBuilder, options) => {
    logger.debug("Model : adding comments");
    if (options.actions.includes("comments")){
        queryBuilder.select(
            knex.raw("CASE " +
                "WHEN project.comment.project_id IS NULL THEN NULL " +
                "ELSE array_agg(json_build_object(" +
                "'id', project.comment.id," +
                "'content', project.comment.content," +
                "'member_id', project.comment.member_id," +
                "'created_at',project.comment.created_at" +
                ")) " +
                "END as comments"))
    }
    if (options.actions.includes("count_comments")){
        queryBuilder
            .count("project.comment.id as count_comments")
    }
    if (options.actions.includes("comments") ||
        options.actions.includes("count_comments")){
        console.log("JHSKHJD");
        queryBuilder
            .leftJoin("project.comment", "project.comment.project_id", "=", "project.project.id")
            .groupBy("project.comment.project_id")
    }
};

我的结果是这样重复的：

 {
            "id": 1,
            "likes": [
                {
                    "id": 1,
                    "member_id": 1
                },
                {
                    "id": 1,
                    "member_id": 1
                },
                {
                    "id": 2,
                    "member_id": 2
                },
                {
                    "id": 2,
                    "member_id": 2
                },
                {
                    "id": 3,
                    "member_id": 3
                },
                {
                    "id": 3,
                    "member_id": 3
                }
            ],
            "comments": [
                {
                    "id": 2
                },
                {
                    "id": 1
                },
                {
                    "id": 2
                },
                {
                    "id": 1
                },
                {
                    "id": 2
                },
                {
                    "id": 1
                }
            ],
            "count_comments": "6"
        },

我尝试了多种解决方案

选择喜欢的子查询。也许我做错了，但没有改变

let likeSubQuery = knex.select(knex.raw("DISTINCT project.like.id, project.like.project_id, project.like.member_id"))
    .from("project.like")
    .where({"project.like.project_id" : "project.project.id"})
    .groupBy("project.like.project_id", "project.like.id")
    .as("x");

WITH，但是我无法使其工作，因为它不喜欢我添加更多参数

 .with('with_alias', addLikes2 , this.options)