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https://issues.apache.org/jira/browse/FLINK-9482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shuyi Chen closed FLINK-9482.
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Resolution: Fixed
> Not applicable functions for TIME
> ---------------------------------
>
> Key: FLINK-9482
> URL: https://issues.apache.org/jira/browse/FLINK-9482
> Project: Flink
> Issue Type: Bug
> Components: Table API & SQL
> Reporter: Viktor Vlasov
> Assignee: Viktor Vlasov
> Priority: Minor
>
> Due to work on https://issues.apache.org/jira/browse/FLINK-9432 I have faced
> with question how to check DECADE function with tests in
> _org/apache/flink/table/expressions/validation/ScalarFunctionsValidationTest.scala._
>
> Because I have used CENTURY function as an example, first of all I have check
> it. During the test I figured out that when we use it with TIME it returns 0.
> I suppose arguments for such functions (also it works for YEAR, MONTH,
> MILLENNIUM, etc) need to be checked and throw some exception if type is not
> suitable.
> As an example, in Apache Calcite project (checked in sqlline shell), when I
> am trying to use CENTURY with TIME it throw:
> {code:java}
> java.lang.AssertionError: unexpected TIME
> {code}
> Need to determine, why such check is not exists and add it.
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