qiaojialin commented on a change in pull request #435: [IOTDB-174] Fix querying
timeseries interface cannot make a query by the specified path prefix
URL: https://github.com/apache/incubator-iotdb/pull/435#discussion_r337304254
##########
File path: server/src/main/java/org/apache/iotdb/db/metadata/MTree.java
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@@ -781,20 +777,56 @@ private void findStorageGroup(MNode node, String path,
HashSet<String> res) {
*
* @return a list contains all distinct devices
*/
- Set<String> getAllDevices() {
- return new HashSet<>(getNodesList(3));
+ Set<String> getAllDevices() throws SQLException {
+ List<String> res = new ArrayList<>();
Review comment:
```suggestion
List<String> devices = new ArrayList<>();
```
And, why not define a set directly
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