SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Function CAST (alias cond1) (children 1)
     ExpressionList (children 2)
      Identifier id1
      Literal \'UInt16\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_02559
   Identifier cond1
   Literal UInt64_10
