KnightOfBlueArmor wrote:Definitely something to push to the Support.
Also, I'm seeing a lot of this in the database logs. This seems to happen any time I touch that structured index; whether I alter the index to use the parameter, run a query that hits it, rebuild statistics, and so on:
Errors in file /u01/app/oracle/diag/rdbms/bkdev/bkdev/trace/bkdev_ora_30900.trc (incident=249418): ORA-00600: internal error code, arguments: [qmxtrtBuildFSTFromGrpDesc1], , , , , , , , , , ,  Use ADRCI or Support Workbench to package the incident. See Note 411.1 at My Oracle Support for error and packaging details.