The subject maintenance releases of DBIx::Chart and DBD::Chart are now (or soon should be) available on CPAN. These releases fix a problem with some DBD's/DBMS's that don't support multiple concurrent execute()'d, but un-fetch()'d, statement handles on a single connection (the specific instance was DBD::ODBC + MS SqlServer 2000, but undoubtedly others exist). The issue causes failure of composite chart queries containing subquery charts, as a result of a failure report by the underlying DBD or DBMS.
The fix causes each DBMS statement to be fully executed and fetched into its chart subquery before the next chart subquery is executed. One add'l small fix was applied to DBD::Chart to silence an occasional "uninitialized value" warning. Regards, Dean Arnold Presicient Corp.
