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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-6847) Add TIMESTAMPDIFF supported in TableAPI
Date Tue, 07 Aug 2018 10:00:01 GMT

    [ https://issues.apache.org/jira/browse/FLINK-6847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16571386#comment-16571386
] 

ASF GitHub Bot commented on FLINK-6847:
---------------------------------------

twalthr commented on a change in pull request #6282: [FLINK-6847][FLINK-6813] [table] TimestampDiff
table api and sql support
URL: https://github.com/apache/flink/pull/6282#discussion_r208164868
 
 

 ##########
 File path: flink-libraries/flink-table/src/test/scala/org/apache/flink/table/expressions/ScalarFunctionsTest.scala
 ##########
 @@ -1943,6 +1943,147 @@ class ScalarFunctionsTest extends ScalarTypesTestBase {
       "false")
   }
 
+  @Test
+  def testTimestampDiff(): Unit = {
+    testTableApi(
+      "2018-07-05 11:11:11".toTimestamp - "2018-07-03 11:11:11".toTimestamp,
+      "'2018-07-05 11:11:11'.toTimestamp - '2018-07-03 11:11:11'.toTimestamp",
+      "172800000"
+    )
+
+    testTableApi(
+      "2018-07-05 11:11:11".toTimestamp - "2018-07-03".toDate,
 
 Review comment:
   Do we really want to support subtracting a date from a timestamp? Is the result useful?
Shouldn't the result be another timestamp?

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> Add TIMESTAMPDIFF supported in TableAPI
> ---------------------------------------
>
>                 Key: FLINK-6847
>                 URL: https://issues.apache.org/jira/browse/FLINK-6847
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API &amp; SQL
>    Affects Versions: 1.4.0
>            Reporter: sunjincheng
>            Priority: Major
>              Labels: pull-request-available, starter
>
> see FLINK-6813



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