[jira] [Resolved] (FLINK-3139) NULL values handling in Table API

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

     [ https://issues.apache.org/jira/browse/FLINK-3139?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabian Hueske resolved FLINK-3139.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.1.0

Support for null values was added during the redesign of the Table API.

> NULL values handling in Table API
> ---------------------------------
>
>                 Key: FLINK-3139
>                 URL: https://issues.apache.org/jira/browse/FLINK-3139
>             Project: Flink
>          Issue Type: Task
>          Components: Table API
>            Reporter: Chengxiang Li
>             Fix For: 1.1.0
>
>
> This is an umbrella task for NULL value handling in Table API. 
> As the logical API for queries, Table API should support handling NULL values, NULL value is quite a common case during logical query, for example:
> # Data source may miss column value in many cases("value missing", "value unknown", "value not applicable" .etc ).
> # Some operators generate Null values on their own, like Outer Join/Cube/Rollup/Grouping Set, and so on. Null values handling in Table API is the prerequisite of these features.



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