[METAMODEL-1111] Empty string treatment in Oracle

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.5.5
• Assignee: Unassigned
• Reporter: Jakub Horcicka
• Created: 08/Aug/16 08:52
• Updated: 09/Aug/16 15:39
• Resolved: 09/Aug/16 15:39

Description

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.

Issue Links

• links to: GitHub Pull Request #123