Return elements of Redshift JSON array on separate rows

Question

I have a Redshift table that looks like this:

 id | metadata
---------------------------------------------------------------------------
 1  | [{\"pet\":\"do         


        

Answer 1

There is generic version for CREATE VIEW seq_0_to_3. Let's call it CREATE VIEW seq_0_to_n. This can be generated by

CREATE VIEW seq_0_to_n AS (  
    SELECT row_number() over (
                          ORDER BY TRUE)::integer - 1 AS i
    FROM  LIMIT );

This helps in generating large sequences as a view.