SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function countMatchesCaseInsensitive (children 1)
     ExpressionList (children 2)
      Literal \'foOBarBAZfoobarbaz\'
      Literal \'foo(bar)(?:baz|)\'
