title: Get even / odd / all numbers between two numbers
body: <p>I want to display all the numbers (even / odd / mixed) between two numbers (1-9; 2-10; 11-20) in one (or two) column.<br>
  Example initial data:</p>
  
  <pre><code>| rang  |              | r1 | r2 |
  --------               -----|-----
  | 1-9   |              | 1  | 9  |
  | 2-10  |              | 2  | 10 |
  | 11-20 |      or      | 11 | 20 |
  
  CREATE TABLE initialtableone(rang TEXT);
  INSERT INTO initialtableone(rang) VALUES
    ('1-9'),
    ('2-10'),
    ('11-20');
  
  CREATE TABLE initialtabletwo(r1 NUMERIC, r2 NUMERIC);
  INSERT INTO initialtabletwo(r1, r2) VALUES
    ('1', '9'),
    ('2', '10'),
    ('11', '20');
  </code></pre>
  
  <p>Result:</p>
  
  <pre><code>| output                         |
  ----------------------------------
  | 1,3,5,7,9                      |
  | 2,4,6,8,10                     |
  | 11,12,13,14,15,16,17,18,19,20  |
  </code></pre>