nonbinaryprogrammer commented on a change in pull request #6861:
URL: https://github.com/apache/geode/pull/6861#discussion_r717879843
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File path:
geode-apis-compatible-with-redis/src/main/java/org/apache/geode/redis/internal/data/RedisSortedSet.java
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@@ -607,6 +669,87 @@ private void addIfMatching(GlobPattern matchPattern,
List<byte[]> resultList, by
}
}
+ private void computeIntersection(List<RedisSortedSet> sets, ZAggregator
aggregator) {
+ RedisSortedSet retVal = new RedisSortedSet(Collections.emptyList(), new
double[] {});
+ RedisSortedSet smallestSet = sets.get(0);
+
+ for (RedisSortedSet set : sets) {
+ if (set.getSortedSetSize() < smallestSet.getSortedSetSize()) {
+ smallestSet = set;
+ }
+ }
+
+ for (byte[] member : smallestSet.members.keySet()) {
+ Double newScore;
+ if (aggregator.equals(ZAggregator.SUM)) {
+ newScore = getSumOfScoresForMember(sets, member);
+ } else if (aggregator.equals(ZAggregator.MAX)) {
+ newScore = getMaxScoreForMember(sets, member);
+ } else {
+ newScore = getMinScoreForMember(sets, member);
+ }
+
+ if (newScore != null) {
+ if (newScore.isNaN()) {
Review comment:
Yes, I believe it is now unnecessary because the ZAggregator function
that is applied doesn't ever return null.
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