Release 10.1A: OpenEdge Development:
ADM Reference

DataIsFetched

Flag indicating whether data has been fetched for the SmartDataObject (SDO). The SmartBrowserObjec (SBO) t sets this to TRUE in the SDO when it has fetched data for the SDO to prevent the SDO from using another server call to fetch the data it already has.

Data type: LOGICAL

Notes:

Read and Write.
This is checked in query.p dataAvailable and openQuery is skipped if its TRUE. It is immediately turned off after it is checked.