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https://issues.apache.org/jira/browse/FLINK-10994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rong Rong closed FLINK-10994.
-----------------------------
    Resolution: Duplicate

> The bug of timestampadd handles time
> ------------------------------------
>
>                 Key: FLINK-10994
>                 URL: https://issues.apache.org/jira/browse/FLINK-10994
>             Project: Flink
>          Issue Type: Bug
>          Components: API / Table SQL
>    Affects Versions: 1.6.2, 1.7.1
>            Reporter: Forward Xu
>            Assignee: Forward Xu
>            Priority: Major
>              Labels: pull-request-available
>
> The error occur when {{timestampadd(MINUTE, 1, time '01:00:00')}} is executed:
> java.lang.ClassCastException: java.lang.Integer cannot be cast to 
> java.lang.Long
> at org.apache.calcite.rex.RexBuilder.clean(RexBuilder.java:1520)
>  at org.apache.calcite.rex.RexBuilder.makeLiteral(RexBuilder.java:1318)
>  at 
> org.apache.flink.table.codegen.ExpressionReducer.reduce(ExpressionReducer.scala:135)
>  at 
> org.apache.calcite.rel.rules.ReduceExpressionsRule.reduceExpressionsInternal(ReduceExpressionsRule.java:620)
>  at 
> org.apache.calcite.rel.rules.ReduceExpressionsRule.reduceExpressions(ReduceExpressionsRule.java:540)
>  at 
> org.apache.calcite.rel.rules.ReduceExpressionsRule$ProjectReduceExpressionsRule.onMatch(ReduceExpressionsRule.java:288)
> I think it should meet the following conditions:
> ||expression||Expect the result||
> |timestampadd(MINUTE, -1, time '00:00:00')|23:59:00|
> |timestampadd(MINUTE, 1, time '00:00:00')|00:01:00|
> |timestampadd(MINUTE, 1, time '23:59:59')|00:00:59|
> |timestampadd(SECOND, 1, time '23:59:59')|00:00:00|
> |timestampadd(HOUR, 1, time '23:59:59')|00:59:59|
> This problem seems to be a bug in calcite. I have submitted isuse to calcite. 
> The following is the link.
>  CALCITE-2699



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