Oracle Error Message
ORA-18169: FTST0010 FTOrder not succeeding FTWindow or FTDistance operator
Reason for the Error
It is a static error if, during the static analysis phase, an expression is found to use an FTOrder operator that does not appear directly succeeding an FTWindow or an FTDistance operator and the implementation enforces this restriction.
Solution
Do not use the FTOrder succeeding FTWindow or FTDistance full-text query operator.