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https://issues.apache.org/jira/browse/FLINK-6847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16571386#comment-16571386
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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 & SQL
> Affects Versions: 1.4.0
> Reporter: sunjincheng
> Priority: Major
> Labels: pull-request-available, starter
>
> see FLINK-6813
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