SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Literal \'-1E9-1E9-1E9-1E9\' (alias x)
    Function toDecimal32 (children 1)
     ExpressionList (children 2)
      Identifier x
      Literal UInt64_0
