Bug #61530 Can't delete user defined type.
Submitted: 15 Jun 2011 20:55 Modified: 23 Jul 2012 5:14
Reporter: Robert Cesaric Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Workbench: Modeling Severity:S2 (Serious)
Version:5.2.34 OS:MacOS (10.6.7)
Assigned to: CPU Architecture:Any
Tags: User Defined Type

[15 Jun 2011 20:55] Robert Cesaric 
Description:
You can't delete a custom User Defined Type even if you're not using it anywhere.  I was unable to delete it even in a blank WB project with no tables defined.

You get the error:

"Type '[usertype]' is used in a column and cannot be deleted."

How to repeat:
1. Create a new UDF (User Defined Type), click the "Apply" button and close the UDF window.
2. Open the UDF window back up and try to delete the new UDF.
[15 Jun 2011 23:05] MySQL Verification Team 
I couldn't repeat on Windows Vista 64-bit. Which OS version are you using?. Thanks.
[15 Jun 2011 23:11] Robert Cesaric 
Added Mac OSX.
[16 Jun 2011 3:29] Valeriy Kravchuk 
Thank you for the bug report. Verified on Mac OS X 10.5.x.
[23 Jul 2012 5:14] Philip Olson 
This has been fixed as of the soon-to-be-released Workbench 5.2.41, and 
here's the changelog entry:

User Defined Types (UDT) could not be deleted when they were not referenced
elsewhere.