Postgres数组在where子句中查找多个值

Question

我有下表的数据

create table stud(key int, person text, subject_id int[]);

insert into stud select 1,'Alex',array[2,7,9];
insert into stud select 2,'Peter',array[4,9,12];
insert into stud select 3,'Tokaver',array[8];
insert into stud select 4,'Machel',array[11,15];

表格外观

我可以在类似的地方过滤单个subject_id

select * from stud where 9=any(subject_id)

我们如何在 where 子句中过滤多个 subject_id

select * from stud where (8,9) in any(subject_id)

Answer 1

demo:db<>fiddle

您可以对数组使用重叠运算符&&：

select * from stud 
where array[8,9] && subject_id