132   SlotIndex Start, Stop;  in update()  local
133   std::tie(Start, Stop) = Indexes->getMBBRange(MBBNum);  in update()
169       if (StartI >= Stop)  in update()
182       if (StartI >= Stop)  in update()
191     SlotIndex Limit = BI->First.isValid() ? BI->First : Stop;  in update()
200     PrevPos = Stop;  in update()
211     std::tie(Start, Stop) = Indexes->getMBBRange(MBBNum);  in update()
217     if (!I.valid() || I.start() >= Stop)  in update()
219     I.advanceTo(Stop);  in update()
220     bool Backup = !I.valid() || I.start() >= Stop;  in update()
234     if (I == LR->end() || I->start >= Stop)  in update()
236     I = LR->advanceTo(I, Stop);  in update()
237     bool Backup = I == LR->end() || I->start >= Stop;  in update()