PL/PGSQL 查询仅返回第一行 (Supabase)

Question

我需要从 jobs table 查询数据并插入 clients table 到两个不同的列中。

首先我抓取客户名称放在 name 列，然后我抓取客户的 unpaid/partially 个付费工作列表作为对象数组放在 open_jobs 列。

下面的代码有效，但它只 returns 第一行。

do $$
  declare
    x varchar;
    y json;
  begin
    select distinct customer
    into x
    from jobs
    order by customer asc;

    select array_to_json(array_agg(row_to_json(t)))
    from (
      select job_location, job_total, paid, invoice_no
      into y
      from jobs
      where customer = x and paid < job_total
      order by invoice_no asc
    )t;

    insert into clients(name, open_jobs)
    values(x, y);
  end;
$$ language plpgsql;

我放了一张link查询结果的图片供参考

Query Result

Answer 1

详细说明我的评论（未测试）：

do $$
  declare
    x varchar;
    y json;
  begin
    FOR x IN select distinct customer from jobs
    order by customer asc LOOP

       select array_to_json(array_agg(row_to_json(t)))
       from (
        select job_location, job_total, paid, invoice_no
        into y
        from jobs
        where customer = x and paid < job_total
        order by invoice_no asc
      )t;

      insert into clients(name, open_jobs)
      values(x, y);
   END LOOP;
  end;
$$ language plpgsql;

您的原始函数只会select 客户查询返回的第一个值。通过使用 FOR x IN ... LOOP ... END LOOP 您可以遍历查询的所有结果。

PL/PGSQL 查询仅返回第一行 (Supabase)

PL/PGSQL query is returning only the first row (Supabase)

sql

postgresql

supabase