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

In sqlite try to add the VALUES keyword:

SELECT *
FROM table
WHERE
  (col1, col2) in ( VALUES     --> add this keyword and remove the last ,
    ('col1_val1', 'col2_val1'),
    ('col1_val2', 'col2_val2'),
    ('col1_val3', 'col2_val3')
  )

Basically in sqLite executing the query:

VALUES
('col1_val1', 'col2_val1'),
('col1_val2', 'col2_val2');

is the same as:

SELECT 'col1_val1' AS column1, 'col2_val1' AS column2
UNION 
SELECT 'col1_val2' AS column1, 'col2_val2' AS column2;

or combined:

SELECT 'col1_val1' AS column1, 'col2_val1' AS column2
UNION  VALUES  ('col1_val2', 'col2_val2');

So you could even write it like:

SELECT * 
  FROM table
  WHERE (col1, col2) IN ( 
      SELECT 'col1_val1', 'col2_val1'
      UNION 
      SELECT 'col1_val2', 'col2_val2'
  );

which is a simple subquery and works in all/most databases.