MySQL Bugs: #34863: Unknown Exception 146 caught in Canvas.h when removing Foreign Key column

Bug #34863	Unknown Exception 146 caught in Canvas.h when removing Foreign Key column
Submitted:	26 Feb 2008 21:48	Modified:	1 Mar 2008 3:30
Reporter:	Rogier van der Hee	Email Updates:
Status:	Duplicate	Impact on me:	None
Category:	MySQL Workbench	Severity:	S2 (Serious)
Version:	5.0.14	OS:	Any
Assigned to:	Alfredo Kojima	CPU Architecture:	Any

Description:
Hi, 

I added a column which I then pointed to as being a foreign key column using the Foreign tab. I had the EER diagram open and added the two new tables, a line connected them showing the foreign key relation. 

When I removed the column that was the foreign key, I received an error message box "Unknown exception caught in "<path>/Canvas.h" at line 146. 

When I then clicked the Canvas, Workbench just crashed...

How to repeat:
When I tried to repeat it by restarting the app and re-adding the foreign key and deleting the column again, the error did not happen because there was no relationship line in the EER diagram, I think.

Shouldn't it automatically add the line when you define a foreign key via the table input form, BTW?

exception Message

Attachment: exception.PNG (image/png, text), 15.97 KiB.

Thank you for the bug report.

could not verify the crash, but the line isn't drawn when FK is created via table-editor

could not verify the crash, but the line isn't drawn when FK is created via table-editor

That is true, I added the FK also in the Table Editor, but then dragged the two tables into an empty EER diagram.

Then the line is drawn, and when you delete the FK, the Canvas crashes...

This seems a duplicate of bug #34816
which is already fixed in svn.