MySQL IN() for two value/array?

Question

I\'m having trouble finding a better way to search MySQL for a pair of values in a table. I have the value pairs in an array, and would like to duplicate the IN() function, but

Answer 1

Great answers from @Quassnoi and @KM !!!

Also, you can get pairs duplicates and select them for post-processing:

SELECT *
FROM `foo`
WHERE (`id_obj` , `Foo_obj`)
IN (
  SELECT `id_obj` , `Foo_obj`
  FROM `foo`
  GROUP BY `id_obj` , `Foo_obj`
  HAVING count(*) > 1
)

Answer 2

SELECT  *
FROM    foo
WHERE   (column1, column2) IN (('foo', 1), ('bar', 2))

This syntax may be confusing, and it may be more readable to replace it with:

SELECT  *
FROM    foo
WHERE   ROW(column1, column2) IN (ROW('foo', 1), ROW('bar', 2))

I'm used to the former one, though :)

Answer 3

If you can get your values into a temp table (you only need the two columns) easily and quickly, you can just INNER JOIN your way there. If not, you'll have to use @Quassnoi version.