Release 10.1A: OpenEdge Reporting:
Query/Results for UNIX

Scratch files

Results creates various scratch files that it uses to temporarily store generated procedures and data. (All scratch files begin with the prefix _qbf. For example, _qbf2.p is an example of a scratch file.)

As you exit Results, it automatically deletes these files. But if your system crashes, they could remain on your disk. You automatically delete these scratch files by starting Results in that directory then exiting. Or, you can delete them manually.