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https://issues.apache.org/jira/browse/FLINK-6847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16571387#comment-16571387
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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_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 & SQL
> Affects Versions: 1.4.0
> Reporter: sunjincheng
> Priority: Major
> Labels: pull-request-available, starter
>
> see FLINK-6813
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