SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    QualifiedAsterisk (children 2)
     Identifier a
     ColumnsTransformerList (children 3)
      ColumnsApplyTransformer
      ColumnsReplaceTransformer (children 1)
       ColumnsReplaceTransformer::Replacement (children 1)
        Function plus (children 1)
         ExpressionList (children 2)
          Identifier i
          Literal UInt64_1
      ColumnsApplyTransformer
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier columns_transformers (alias a)