haimeiguo commented on a change in pull request #2029: URL: https://github.com/apache/iotdb/pull/2029#discussion_r524961880
########## File path: server/src/main/java/org/apache/iotdb/db/query/dataset/groupby/GroupByEngineDataSet.java ########## @@ -70,36 +77,69 @@ public GroupByEngineDataSet(QueryContext context, GroupByTimePlan groupByTimePla long intervalNum = (long) Math.ceil(queryRange / (double) slidingStep); curStartTime = slidingStep * (intervalNum - 1) + startTime; } - curEndTime = Math.min(curStartTime + interval, endTime); + + //if is group by months interval and sliding step are calculated in ms by * 30 * 86400_000L + //now converting them back to integer months + if (isIntervalByMonth) { + interval = interval / 30 / 86400_000L; + curEndTime = Math.min(curStartTime + calcIntervalByMonth(interval, curStartTime), endTime); Review comment: added. Thank you! ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org