Hello what do you think.

we are a little confuse about parent and child. I have read that only
shold be use in transacction (ok), not split along server, write
neckbootle ok.  But in i/o 2009  video show that  is a good solution
split models in two class like:

a>message (db.model)
 from
 comments

b>messageindexes (db.model)
 to  liststringproperty()

when (a) i parent of (b)


 If in a doc say only use in transacction and etc. what happen if in
this enviroment exist million of records is a good or bad design.

many thanks

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