How can I rewrite a multi-column IN clause to work on SQLite?

Question

I\'ve got a query that looks something like this:

SELECT
  *
FROM table
WHERE
  (col1, col2) in (
    (\'col1_val1\', \'col2_val1\'),
    (\'col1_val2\', \'c         


        

Answer 1

Here's an easy solution that works, but it might not perform well on large data sets because it can't use any of your indexes.

SELECT * FROM table
WHERE col1 || '-' || col2 in (
  'col1_val1-col2_val1',
  'col1_val2-col2_val2',
  'col1_val3-col2_val3'
)

Try it in sqlfiddle

Enjoy!