deniskuzZ commented on code in PR #3419:
URL: https://github.com/apache/hive/pull/3419#discussion_r920415485
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ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/CompactionQueryBuilder.java:
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@@ -419,15 +421,13 @@ private void defineColumns(StringBuilder query) {
}
List<FieldSchema> cols = sourceTab.getSd().getCols();
boolean isFirst = true;
+ List<String> columnDescs = new ArrayList<String>();
Review Comment:
no need to provide type in the diamond operator, from Java 1.7 adds type
inference
````
List<String> columnDescs = new ArrayList<>()
````
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