lujiajing1126 commented on code in PR #54:
URL: 
https://github.com/apache/skywalking-banyandb-java-client/pull/54#discussion_r1580313244


##########
src/main/java/org/apache/skywalking/banyandb/v1/client/BanyanDBClient.java:
##########
@@ -348,11 +348,18 @@ public StreamWrite createStreamWrite(String group, String 
name, final String ele
     public StreamQueryResponse query(StreamQuery streamQuery) throws 
BanyanDBException {
         checkState(this.streamServiceStub != null, "stream service is null");
 
-        final BanyandbStream.QueryResponse response = 
HandleExceptionsWith.callAndTranslateApiException(() ->
-                this.streamServiceBlockingStub
-                        .withDeadlineAfter(this.getOptions().getDeadline(), 
TimeUnit.SECONDS)
-                        
.query(streamQuery.build(this.metadataCache.findMetadata(streamQuery.group, 
streamQuery.name))));
-        return new StreamQueryResponse(response);
+        for (String group : streamQuery.groups) {
+            MetadataCache.EntityMetadata em = 
this.metadataCache.findMetadata(group, streamQuery.name);
+            if (em != null) {
+                final BanyandbStream.QueryResponse response = 
HandleExceptionsWith.callAndTranslateApiException(() ->
+                        this.streamServiceBlockingStub
+                                
.withDeadlineAfter(this.getOptions().getDeadline(), TimeUnit.SECONDS)
+                                .query(streamQuery.build(em)));
+                return new StreamQueryResponse(response);

Review Comment:
   It seems only the first group available is used



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