"Ranetbauer, Michael" <[EMAIL PROTECTED]> wrote:
> Hi Richard
> 
> At first, thank you for your answer.
> 
> I've tried your solution, but when I try to drop the PRIMARY KEY I get
> following error:
> 
> [localhost] ERROR 1025: Error on rename of '.\austro\#sql-280_110' to
> '.\austro\fluege' (errno: 150)
> 

$ perror 150
Error code 150:  Unknown error 150
150 = Foreign key constraint is incorrectly formed

You should create index on that column and then drop primary key.


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