137   SlotIndex Start, Stop;  in update()  local
138   std::tie(Start, Stop) = Indexes->getMBBRange(MBBNum);  in update()
174       if (StartI >= Stop)  in update()
187       if (StartI >= Stop)  in update()
196     SlotIndex Limit = BI->First.isValid() ? BI->First : Stop;  in update()
205     PrevPos = Stop;  in update()
216     std::tie(Start, Stop) = Indexes->getMBBRange(MBBNum);  in update()
222     if (!I.valid() || I.start() >= Stop)  in update()
224     I.advanceTo(Stop);  in update()
225     bool Backup = !I.valid() || I.start() >= Stop;  in update()
239     if (I == LR->end() || I->start >= Stop)  in update()
241     I = LR->advanceTo(I, Stop);  in update()
242     bool Backup = I == LR->end() || I->start >= Stop;  in update()