Package org.apache.iotdb.db.query.executor.groupby.impl

Class Summary

Class	Description
EmptyQueueSlidingWindowGroupByExecutor	When calculating MAX_TIME and LAST_VALUE (the MIN_TIME and FIRST_VALUE in descending order), the aggregation result always appears in the most recent pre-aggregation result.
LocalAlignedGroupByExecutor
LocalGroupByExecutor
MonotonicQueueSlidingWindowGroupByExecutor	When computing MAX_VALUE, MIN_VALUE, EXTREME, we only add pre-aggregation results that maintain monotonicity to queue.
NormalQueueSlidingWindowGroupByExecutor	When calculating MIN_TIME and FIRST_VALUE (MAX_TIME and LAST_VALUE in descending order), the aggregated result always appears at the head of the queue.
SmoothQueueSlidingWindowGroupByExecutor	The aggregation result is calculated from all pre-aggregation results in the currently maintained queue when calculating the COUNT, SUM, and AVG.