the the migrate settings is about the define_table affect on the database 
side (migrate = True) and on the *.table files (fake_migrate=True). 
there will be a little performance impact, but in terms of efficincy code 
(because you only need to execute 1 time for create index). So let say 
about study case in here, imagine that you have to use the other database 
backend say mysql or postgresql, yet to create index is not support "IF NOT 
EXIST", yet you will be 'check mate' in the case you put the CREATE INDEX 
in the models. or put it simple just throw away IF NOT EXIST and keep it 
with your SQLITE, you will got an error said the the index already created.

best regards,
stifan

-- 
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
--- 
You received this message because you are subscribed to the Google Groups 
"web2py-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to web2py+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to