[jira] [Closed] (FLINK-5520) Disable outer joins with non-equality predicates

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

     [ https://issues.apache.org/jira/browse/FLINK-5520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabian Hueske closed FLINK-5520.
--------------------------------
       Resolution: Done
    Fix Version/s: 1.3.0

Fixed for 1.2.0 with 9073c53f902df7b3dbbdec2a30d86030e49fe27e
Fixed for 1.3.0 with d1301c82b85c00284d90e8f5bdac4fd86dc5b173

> Disable outer joins with non-equality predicates
> ------------------------------------------------
>
>                 Key: FLINK-5520
>                 URL: https://issues.apache.org/jira/browse/FLINK-5520
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API & SQL
>    Affects Versions: 1.2.0
>            Reporter: Fabian Hueske
>            Assignee: lincoln.lee
>            Priority: Blocker
>             Fix For: 1.2.0, 1.3.0
>
>
> Outer joins with non-equality predicates (and at least one equality predicate) compute incorrect results. 
> Since this is not a very common requirement, I propose to disable this feature for the 1.2.0 release and correctly implement it for a later version.
> The fix should add checks in the Table API validation phase (to get a good error message) and in the DataSetJoinRule to prevent translation of SQL queries with non-equality predicates on outer joins.



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