Diagnosis
If this option is selected, cache entries with query data that exceedthe predefined size limit when initially created are written to thecluster table (also known as index table). It is not beneficial to usecluster tables when transporting larger data volumes between thedatabase and application server because this requires multiple implicitSELECTS. However, it is possible to save in internal tables; this meansthat the data export can take place in an internal table instead of anXSTRING, which offers better performance under some circumstances.