jixuan1989 commented on a change in pull request #2571:
URL: https://github.com/apache/iotdb/pull/2571#discussion_r565873166
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File path: server/src/main/java/org/apache/iotdb/db/service/TSServiceImpl.java
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@@ -668,6 +666,23 @@ private TSExecuteStatementResp
internalExecuteQueryStatement(String statement, l
}
}
+ /*
+ calculate fetch size for group by time plan
+ */
+ private int getFetchSizeForGroupByTimePlan(GroupByTimePlan groupByTimePlan) {
+ int rows = (int) ((groupByTimePlan.getEndTime() -
groupByTimePlan.getStartTime()) / groupByTimePlan
+ .getInterval());
+ // edge case for group by months when starttime is in February
+ // ie. time range = [2020-02-02, 2020-03-02), interval = 1mo, rows will
get 0
Review comment:
The comments is not good as it may cause some misleading.
rows gets 0 is caused by: the end time - the start time < the time interval.
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