gianm commented on a change in pull request #10968:
URL: https://github.com/apache/druid/pull/10968#discussion_r590591364
##########
File path:
sql/src/main/java/org/apache/druid/sql/calcite/filtration/CombineAndSimplifyBounds.java
##########
@@ -130,15 +134,24 @@ private static DimFilter doSimplify(final List<DimFilter>
children, boolean disj
// Group Bound filters by dimension, extractionFn, and comparator and
compute a RangeSet for each one.
final Map<BoundRefKey, List<BoundDimFilter>> bounds = new HashMap<>();
+ boolean allFalse = true;
Review comment:
Will `children` ever be empty? If not, consider including a precondition
check. If it could be empty: then, if it is empty, this will return a
`Filtration.matchNothing()`. Is that OK?
##########
File path:
processing/src/main/java/org/apache/druid/query/groupby/GroupByQuery.java
##########
@@ -715,7 +716,11 @@ private DateTime computeUniversalTimestamp()
if (!timestampStringFromContext.isEmpty()) {
return DateTimes.utc(Long.parseLong(timestampStringFromContext));
} else if (Granularities.ALL.equals(granularity)) {
- final DateTime timeStart = getIntervals().get(0).getStart();
+ final List<Interval> intervals = getIntervals();
+ if (CollectionUtils.isNullOrEmpty(intervals)) {
+ return null;
Review comment:
Why is `null` correct instead of some specific timestamp? (Whatever the
answer is, IMO it'd be good as a comment.)
----------------------------------------------------------------
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:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
