jt2594838 commented on a change in pull request #429: [IOTDB-205]Support
storage-group-level data ttl
URL: https://github.com/apache/incubator-iotdb/pull/429#discussion_r338368409
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File path: server/src/main/java/org/apache/iotdb/db/service/TSServiceImpl.java
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@@ -309,7 +310,7 @@ public TSFetchMetadataResp
fetchMetadata(TSFetchMetadataReq req) {
status = new TSStatus(getStatus(TSStatusCode.SUCCESS_STATUS));
break;
case "SHOW_STORAGE_GROUP":
- Set<String> storageGroups = getAllStorageGroups();
+ Set<String> storageGroups = new HashSet<>(getAllStorageGroups());
Review comment:
The data structure required by the upper interface is a `Set`, while the
lower interface returns a `List`, so I have to do the conversion.
But actually, it does not need to be a set, as we won't have duplicated SGs.
I will change the upper interface to receive a `List` later.
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