Search in integer array in Postgres

Question

Is there any other way to search for a certain value in an integer[] column in Postgres?

My currently installed Postgres version does not allow the

Answer 1

**Store Integer Array as Strings in Postgresql and Query the Array**    
Finally I could save the integer as string array in one column able to successfully convert into array and query the array using below example.

    CREATE TABLE test
    (
      year character varying,
      id serial NOT NULL,
      category_id character varying,
      CONSTRAINT test_pkey PRIMARY KEY (id)
    )

    Data
    "2005";1;"1,2,3,4"
    "2006";2;"2,3,5,6"
    "2006";3;"4,3,5,6"
    "2007";7;"1,2"


    select distinct(id) from test, (select id as cid, unnest(string_to_array(category_id ,  ',')::integer[]) as cat from test) c where c.cid=test.id and cat in (1,2,3);

    Result:
    2
    1
    3
    7

Answer 2

quickly search will be so, but you should use index gist or gin for intarray type Postgres intarray

 SELECT * FROM table WHERE values @> ARRAY[10];

Answer 3

For equality checks you can simply:

SELECT * FROM table WHERE 10 = ANY (values);

Read about ANY/SOME in the manual.