SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    ColumnsListMatcher (children 2)
     ExpressionList (children 3)
      Identifier i
      Identifier j
      Identifier k
     ColumnsTransformerList (children 1)
      ColumnsApplyTransformer
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier columns_transformers