Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/891#discussion_r47457505
--- Diff:
tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/ExternalSortExec.java
---
@@ -333,8 +334,9 @@ private int calculateFanout(int remainInputChunks, int
inputNum, int outputNum,
private Scanner externalMergeAndSort(List<Chunk> chunks) throws
Exception {
int level = 0;
- final List<Chunk> inputFiles = TUtil.newList(chunks);
- final List<Chunk> outputFiles = TUtil.newList();
+ final List<Chunk> inputFiles = new ArrayList<>();
+ inputFiles.addAll(chunks);
--- End diff --
Can be rewritten with a single constructor call.
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