SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier v
     Function CAST (children 1)
      ExpressionList (children 2)
       Function CAST (children 1)
        ExpressionList (children 2)
         Literal \'42\'
         Literal \'UInt64\'
       Literal \'Variant(String, UInt64)\'
