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Posted to issues@metamodel.apache.org by "Jakub Horcicka (JIRA)" <ji...@apache.org> on 2016/08/08 08:56:20 UTC

[jira] [Commented] (METAMODEL-1111) Empty string treatment in Oracle

    [ https://issues.apache.org/jira/browse/METAMODEL-1111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15411533#comment-15411533 ] 

Jakub Horcicka commented on METAMODEL-1111:
-------------------------------------------

Bug fix PR: https://github.com/apache/metamodel/pull/123

> Empty string treatment in Oracle
> --------------------------------
>
>                 Key: METAMODEL-1111
>                 URL: https://issues.apache.org/jira/browse/METAMODEL-1111
>             Project: Apache MetaModel
>          Issue Type: Bug
>            Reporter: Jakub Horcicka
>
> See https://github.com/datacleaner/DataCleaner/issues/1424
> In Oracle empty string is considered as null. That's why some SQL constructs do not work as expected after MM SQL optimization is made. 
> There is a problem when using NullCheckFilter and only its NOT_NULL branch together with Oracle datastore. This is related to the '' = null problem. 



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