Redshift. Convert comma delimited values into rows

Question

I am wondering how to convert comma-delimited values into rows in Redshift. I am afraid that my own solution isn\'t optimal. Please advise. I have table with one of the colu

Answer 1

Another idea is to transform your CSV string into JSON first, followed by JSON extract, along the following lines:

... '["' || replace( user_action, '.', '", "' ) || '"]' AS replaced

... JSON_EXTRACT_ARRAY_ELEMENT_TEXT(replaced, numbers.i) AS parsed_action

Where "numbers" is the table from the first answer. The advantage of this approach is the ability to use built-in JSON functionality.