[jira] [Closed] (FLINK-7922) leastRestrictive in FlinkTypeFactory does not resolve composite type correctly

["Fabian Hueske (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-7922?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabian Hueske closed FLINK-7922.
--------------------------------
       Resolution: Fixed
    Fix Version/s: 1.5.0
                   1.3.3
                   1.4.0

Fixed for 1.3.3 with eb2995762ea441e5fdc0097263b9eaa5dc674aa1
Fixed for 1.4.0 with 8c60f97a43defc57bb1bfaabdd6081b329db53b8
Fixed for 1.5.0 with 949ae79dad149a97f4703daa7e58d7fbd0957dac

> leastRestrictive in FlinkTypeFactory does not resolve composite type correctly
> ------------------------------------------------------------------------------
>
>                 Key: FLINK-7922
>                 URL: https://issues.apache.org/jira/browse/FLINK-7922
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API & SQL
>    Affects Versions: 1.4.0
>            Reporter: Rong Rong
>            Assignee: Rong Rong
>             Fix For: 1.4.0, 1.3.3, 1.5.0
>
>
> FlinkTypeFactory does not override the following function correctly:
> {code:java}
> def leastRestrictive(types: util.List[RelDataType]): RelDataType = {
>   //... 
> }
> {code}
> dealing with SQL such as:
> {code:sql}
> CASE 
>   WHEN <CONDITION> THEN 
>     <COMPOSITE_TYPE> 
>   ELSE 
>     NULL 
> END
> {code}
> will trigger runtime exception. 
> See following test sample for more details:
> https://github.com/walterddr/flink/commit/a5f2affc9bbbd50f06200f099c90597e519e9170



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