SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function toTime64 (children 1)
     ExpressionList (children 3)
      Literal Array_[\'12:34:56.789\', \'01:23:45.678\']
      Literal UInt64_3
      Literal \'UTC\'
