Page History

...

When users want to query results from IQ, they need to know the start time of the window to get results. For most users it will be target time - windowSize, since windows are defined backwards in SlidingWindows. For example, if there's an incident at 9:15am and they have a window size of 10 minutes, they're looking for a window with the start time of 89:1505. If they don't have the exact time, they can use a range query and traverse through the results to get the one they're looking for. After KIP-617, users will be able to traverse backwards through their range query, making accessing the latest window simpler. 

...