text: SELECT '';
  
  SELECT '''';
  
  SELECT '
  
  ';
  
  SELECT '''aaa''';
  
  SELECT '
  ''
  ';
  
  SELECT 'foo'
  'bar';
  
  SELECT 'foo'   'bar';
  
  SELECT 'foo'
  
  
  'bar';
  
  SELECT 'foo' -- some comment
  'bar';
  
  SELECT 'foo' /*  some comment */ 'bar';
  