[jira] [Commented] (FLINK-15092) Using sql-client excute sql(select sum(cast(null as int)) from t123;) has a TableException

["xiaojin.wy (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-15092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16989529#comment-16989529 ] 

xiaojin.wy commented on FLINK-15092:
------------------------------------

 [~ykt836] , could you please assign it to someone?

> Using sql-client excute sql(select sum(cast(null as int)) from t123;) has a TableException
> ------------------------------------------------------------------------------------------
>
>                 Key: FLINK-15092
>                 URL: https://issues.apache.org/jira/browse/FLINK-15092
>             Project: Flink
>          Issue Type: Bug
>          Components: Table SQL / Client
>    Affects Versions: 1.10.0
>         Environment: flink master's newest code.
>            Reporter: xiaojin.wy
>            Priority: Major
>
> CREATE TABLE `t123` (
>  x INT
> ) WITH (
>  'format.field-delimiter'='|',
>  'connector.type'='filesystem',
>  'format.derive-schema'='true',
>  'connector.path'='hdfs://zthdev/defender_test_data/daily/test_aggregates/sources/t123.csv',
>  'format.type'='csv'
> );
> select sum(cast(null as int)) from t123;
>  
> Excute the statement above , then you will see such exception:
>  
> [ERROR] Could not execute SQL statement. Reason:
> org.apache.flink.table.api.TableException: Failed to push project into table source! table source with pushdown capability must override and change explainSource() API to explain the pushdown applied!
>  
>  



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