wu-sheng commented on code in PR #10448:
URL: https://github.com/apache/skywalking/pull/10448#discussion_r1118928239
##########
oap-server/server-storage-plugin/storage-banyandb-plugin/src/main/java/org/apache/skywalking/oap/server/storage/plugin/banyandb/BanyanDBAggregationQueryDAO.java:
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@@ -85,24 +60,45 @@ protected void apply(MeasureQuery query) {
throw new IOException("field spec is not registered");
}
+ if (schema.getTopNSpec() == null) {
+ throw new IOException("TopN spec is registered");
+ }
+
+ TopNQueryResponse resp = null;
+ if (condition.getOrder() == Order.DES) {
+ resp = topN(schema, timestampRange, condition.getTopN(),
additionalConditions);
+ } else {
+ resp = bottomN(schema, timestampRange, condition.getTopN(),
additionalConditions);
+ }
Review Comment:
I mean there are two kinds of topN.
1. Where **service_id = xxx** and time_range in [start, end] Group by
entityID
2. Where and time_range in [start, end] Group by entityID
Check the query condition protocol.
https://github.com/apache/skywalking-query-protocol/blob/450328c6445d4dc50a868a0b797a14755f1d82cc/metrics-v2.graphqls#L74-L75
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