SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 5)
    Identifier table
    Identifier column
    Identifier serialization_kind
    Identifier subcolumns.names
    Identifier subcolumns.serializations
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.parts_columns
   Function and (children 1)
    ExpressionList (children 4)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier database
       Function currentDatabase (children 1)
        ExpressionList
     Function in (children 1)
      ExpressionList (children 2)
       Identifier table
       Literal Tuple_(\'dst_sparse\', \'mytable_sparse\')
     Identifier active
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier column
       Literal \'budget\'
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier table
