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Personal opinion: This question may be way too specific to be valuable
to you in a forum. If we take a step back and ask about the purpose of
this there may be better options to have this all work properly. For
example, why are you doing this query? How are the returned data to be
consumed? What is the T_WF_BU table holding (presumably not data
synchronized with this driver natively)?

If we can get a better idea of what is happening, maybe with a full
trace of the operation (especially seeing how the SQL response appears)
a better solution may be possible.

Good luck.
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