[
https://issues.apache.org/jira/browse/TAJO-1407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14374931#comment-14374931
]
ASF GitHub Bot commented on TAJO-1407:
--------------------------------------
Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/426#discussion_r26902968
--- Diff:
tajo-core/src/test/java/org/apache/tajo/engine/planner/physical/TestTupleSorter.java
---
@@ -0,0 +1,111 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.tajo.engine.planner.physical;
+
+import com.google.common.collect.Iterables;
--- End diff --
Please remove unused imports.
> Minor performance improvement of MemSortExec
> --------------------------------------------
>
> Key: TAJO-1407
> URL: https://issues.apache.org/jira/browse/TAJO-1407
> Project: Tajo
> Issue Type: Improvement
> Components: physical operator
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
>
> Currently, tajo uses Collections.sort() with TupleCompartor, which can incur
> some overheads on comparing.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
