DonnyZone commented on a change in pull request #1756: [CALCITE-1824] GROUP_ID
returns wrong result
URL: https://github.com/apache/calcite/pull/1756#discussion_r366407494
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File path:
core/src/main/java/org/apache/calcite/sql/validate/AggregatingSelectScope.java
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@@ -108,19 +108,20 @@ private Resolved resolve() {
groupExprProjection = groupAnalyzer.groupExprProjection;
}
- final Set<ImmutableBitSet> flatGroupSets =
- Sets.newTreeSet(ImmutableBitSet.COMPARATOR);
+ final TreeMap<ImmutableBitSet, Integer> flatGroupSetCount =
Review comment:
For the entries in map, we do not care about whether they are sorted. But
the flatten group sets (i.e.,the map's keyset) should be ordered when
constructing Resolved.
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