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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=16571387#comment-16571387
] 

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_r208161286
 
 

 ##########
 File path: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/codegen/calls/ScalarOperators.scala
 ##########
 @@ -861,6 +865,35 @@ object ScalarOperators {
           (l, r) => s"${qualifyMethod(BuiltInMethod.ADD_MONTHS.method)}($l, $op($r))"
         }
 
+      case (l: SqlTimeTypeInfo[_], r: SqlTimeTypeInfo[_]) if !plus =>
+        generateOperatorIfNotNull(nullCheck, LONG_TYPE_INFO, left, right) {
 
 Review comment:
   Is always returning `LONG_TYPE_INFO` in sync with MySQL and Calcite? We need to make sure
that the type information is in sync with Calcite's Sql type. Otherwise we get a type mismatch
in a following operation.

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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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