9466 Concurrent change conflict on table -- try again.
During processing of a user's transaction, another concurrent session had changed the table.
Internal error, users won't see.
This error is similar to ERRTEQTABCHANGED, the difference in ERRTEQTABCHANGEDX is the info from DBC tables was obtained by dirty read and not reliable. So, instead of returning the error to users, the request is internally resubmitted.
Query will be automatically reparsed.