SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function positionUTF8 (children 1)
       ExpressionList (children 2)
        Function materialize (alias h) (children 1)
         ExpressionList (children 1)
          Literal \'абв\'
        Function lowerUTF8 (children 1)
         ExpressionList (children 1)
          Literal \'Бв\' (alias n)
      Function positionCaseInsensitiveUTF8 (children 1)
       ExpressionList (children 2)
        Identifier h
        Identifier n
