125   SlotIndex Start, Stop;  in update()  local
126   std::tie(Start, Stop) = Indexes->getMBBRange(MBBNum);  in update()
162       if (StartI >= Stop)  in update()
175       if (StartI >= Stop)  in update()
184     SlotIndex Limit = BI->First.isValid() ? BI->First : Stop;  in update()
193     PrevPos = Stop;  in update()
204     std::tie(Start, Stop) = Indexes->getMBBRange(MBBNum);  in update()
210     if (!I.valid() || I.start() >= Stop)  in update()
212     I.advanceTo(Stop);  in update()
213     bool Backup = !I.valid() || I.start() >= Stop;  in update()
227     if (I == LR->end() || I->start >= Stop)  in update()
229     I = LR->advanceTo(I, Stop);  in update()
230     bool Backup = I == LR->end() || I->start >= Stop;  in update()