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https://issues.apache.org/jira/browse/FLINK-3856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15270772#comment-15270772
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ASF GitHub Bot commented on FLINK-3856:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1959#discussion_r62054304
--- Diff:
flink-core/src/test/java/org/apache/flink/api/common/typeutils/base/SqlTimestampComparatorTest.java
---
@@ -0,0 +1,48 @@
+/*
+ * 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.flink.api.common.typeutils.base;
+
+import java.sql.Timestamp;
+import org.apache.flink.api.common.typeutils.ComparatorTestBase;
+import org.apache.flink.api.common.typeutils.TypeComparator;
+import org.apache.flink.api.common.typeutils.TypeSerializer;
+
+public class SqlTimestampComparatorTest extends
ComparatorTestBase<Timestamp> {
+
+ @SuppressWarnings("unchecked")
+ @Override
+ protected TypeComparator<Timestamp> createComparator(boolean ascending)
{
+ return (TypeComparator) new SqlTimestampComparator(ascending);
+ }
+
+ @Override
+ protected TypeSerializer<Timestamp> createSerializer() {
+ return new SqlTimestampSerializer();
+ }
+
+ @Override
+ protected Timestamp[] getSortedTestData() {
+ return new Timestamp[] {
+ Timestamp.valueOf("1970-01-01 00:00:00.000"),
--- End diff --
Add Timestamps that only differ in the nanos?
> Create types for java.sql.Date/Time/Timestamp
> ---------------------------------------------
>
> Key: FLINK-3856
> URL: https://issues.apache.org/jira/browse/FLINK-3856
> Project: Flink
> Issue Type: New Feature
> Components: Core
> Reporter: Timo Walther
> Assignee: Timo Walther
>
> At the moment there is only the {{Date}} type which is not sufficient for
> most use cases about time.
> The Table API would also benefit from having different types as output result.
> I would propose to add the three {{java.sql.}} types either as {{BasicTypes}}
> or in an additional class {{TimeTypes}}.
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