Yangsx-1 commented on code in PR #1870:
URL: https://github.com/apache/kvrocks/pull/1870#discussion_r1385877176


##########
src/types/redis_stream.cc:
##########
@@ -232,6 +241,34 @@ std::string 
Stream::encodeStreamConsumerMetadataValue(const StreamConsumerMetada
   return dst;
 }
 
+StreamConsumerMetadata Stream::decodeStreamConsumerMetadataValue(const 
std::string &value) {
+  StreamConsumerMetadata consumer_metadata;
+  rocksdb::Slice input(value);
+  GetFixed64(&input, &consumer_metadata.pending_number);
+  GetFixed64(&input, &consumer_metadata.last_idle);
+  GetFixed64(&input, &consumer_metadata.last_active);
+  return consumer_metadata;
+}
+
+StreamSubkeyType Stream::identifySubkeyType(const rocksdb::Slice &key) {
+  InternalKey ikey(key, storage_->IsSlotIdEncoded());
+  Slice subkey = ikey.GetSubKey();
+  if (subkey.size() <= 16) {  // id.ms(uint64) + id.seq(uint64)

Review Comment:
   Yes, i'll remove these comments in the code and add some const variables.



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