Hi,

I have a choice to store the data two ways. Which way is more
efficient when querying in BigTable?

First way:
class Page(db.Model):
    pagekey= db.StringProperty(required=True)
    usernames = db.StringListProperty(required=True)

So all the users who visits the page, will be added to the username
list


Second way:

class Page(db.Model):
    pagekey= db.StringProperty(required=True)
    username = db.StringProperty(required=True)
All the users who visits the page will have its own row


The query will be with both username and pagekey.
There can be a lot of users.
Is there a limit on the StringList size?
what are the advantages of each methods of  storing data?

Thanks
Jon

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