remove CS_FLUSH from query regression
Fixes performance regression introduced by prior refactoring of pipe control code that unnecessarily added CS_FLUSH to query start and end. Issue was diagnosed by Ben L (thank you!)
Original regression: 6dc95685
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Fixes performance regression introduced by prior refactoring of pipe control code that unnecessarily added CS_FLUSH to query start and end. Issue was diagnosed by Ben L (thank you!)
Original regression: 6dc95685