Question

我有一个PostgreSQL存储过程，其中包含以下代码：

IF something = TRUE THEN
    SELECT id INTO some_id FROM some_table WHERE some conditions LIMIT 1;
    RETURN QUERY SELECT * FROM some_table WHERE some conditions LIMIT 1;
ELSE
    SELECT id INTO some_id FROM some_table WHERE some OTHER conditions LIMIT 1;
    RETURN QUERY SELECT * FROM some_table WHERE some OTHER conditions LIMIT 1;
END IF;

DELETE FROM some_table where id = some_id;

有没有办法简化上面的代码？我想我们无能为力关于IF和ELSE中重复的代码，但有没有办法避免每次有2 SELECT个？是否可以在some_id中插入内容 RETURN QUERY？

Answer 1

如果该功能仅发布您发布的内容，则无需执行此操作：

delete from some_table
where 
    something and (some conditions)
    or
    something is not true and (some other conditions)
returning *

简化PostgreSQL功能

1 个答案: