PostgreSQL基于复杂子查询的内部联接删除行

Question

我正在尝试从两个复杂的子查询中删除匹配的行。我正在使用postgresql。这是示例代码：

DELETE FROM complex_subquery1 as a
USING   complex_subquery2 as b
WHERE a.column1 = b.column2

我在这里阅读：PostgreSQL: delete rows returned by subquery，这种方式实际上是不可能的。删除内部联接是否有快捷方式？

Answer 1

通常的方法是

DELETE FROM atable
USING complex_subquery1 as a,
      complex_subquery2 as b
WHERE a.column1 = b.column2
  AND a.column3 = atable.column4;