Actually, the message says the table has a key greater than 767 bytes.

On Mon, Aug 18, 2014 at 9:01 AM, Diogo Munaro <[email protected]> wrote:
> You have a lot of indexes into one table
>
> Em segunda-feira, 23 de setembro de 2013 08h47min08s UTC-3, frasse escreveu:
>>
>> Hi All
>> I try to follow migration recommendation for mysql in web2py 2.6.4 .  as
>> follow
>>
>>  I am setting migrate_enabled=False
>>  everything is ok
>>  length=255 to string Fields
>>  everything is ok
>>  re-enable migrations with migrate_enabled=True
>>  application crash
>>
>> Here is Error
>>
>> Traceback (most recent call last):
>>   File "/var/web2py/gluon/restricted.py", line 217, in restricted
>>     exec ccode in environment
>>   File "/var/web2py/applications/myapp/models/db.py", line 72, in <module>
>>     auth.define_tables()
>>   File "/var/web2py/gluon/tools.py", line 1728, in define_tables
>>     format='%(first_name)s %(last_name)s (%(id)s)'))
>>   File "/var/web2py/gluon/dal.py", line 7895, in define_table
>>     table = self.lazy_define_table(tablename,*fields,**args)
>>   File "/var/web2py/gluon/dal.py", line 7932, in lazy_define_table
>>     polymodel=polymodel)
>>   File "/var/web2py/gluon/dal.py", line 1029, in create_table
>>     fake_migrate=fake_migrate)
>>   File "/var/web2py/gluon/dal.py", line 1136, in migrate_table
>>     self.execute(sub_query)
>>   File "/var/web2py/gluon/dal.py", line 1833, in execute
>>     return self.log_execute(*a, **b)
>>   File "/var/web2py/gluon/dal.py", line 1827, in log_execute
>>     ret = self.cursor.execute(command, *a[1:], **b)
>>   File "/var/web2py/gluon/contrib/pymysql/cursors.py", line 117, in
>> execute
>>     self.errorhandler(self, exc, value)
>>   File "/var/web2py/gluon/contrib/pymysql/connections.py", line 202, in
>> defaulterrorhandler
>>     raise errorclass, errorvalue
>> InternalError: (1071, u'Specified key was too long; max key length is 767
>> bytes')
>>
>>
>> any idea
>> Thanks
>> Frasse
>
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