hash is enough for me. my site is not an e-bank. On 9月5日, 下午3时58分, Nick Johnson <[email protected]> wrote: > On Mon, Sep 5, 2011 at 4:42 PM, saintthor <[email protected]> wrote: > > the password was hashed. > > > i think to query name and password together may take less db ops if > > password is wrong. isn't it? > > The number of operations is the same; fewer entities would be returned. In > return, though, you're incurring an extra index entry for every record. You > _should_ be salting your passwords (and preferably using RCrypt, SCrypt or > PBKDF2), though, in which case you can't do an index lookup for the password > anyway. > > -Nick Johnson > > > > > > > > > > > > > On 9月5日, 下午1时43分, Nick Johnson <[email protected]> wrote: > > > Also, you don't need to index the password field - just fetch the user, > > then > > > check the password. I sincerely hope you're not storing the password in > > the > > > clear, though! > > > > -Nick > > > > On Mon, Sep 5, 2011 at 3:02 PM, Simon Knott <[email protected]> > > wrote: > > > > Hi, > > > > > You need to retrieve all objects that were written in this period out > > of > > > > the datastore and re-put them - single-property indexes are only > > written on > > > > putting the entity. If you can't work out which entities were written > > in > > > > this period, then you will need to retrieve all entities and re-put > > them. > > > > > It should be noted that query indexes, which use these single-property > > > > indexes in the background, are re-generated on deployment. > > > > > Cheers, > > > > Simon > > > > > -- > > > > You received this message because you are subscribed to the Google > > Groups > > > > "Google App Engine" group. > > > > To view this discussion on the web visit > > > >https://groups.google.com/d/msg/google-appengine/-/VYJDjjca21MJ. > > > > > To post to this group, send email to [email protected] > > . > > > > To unsubscribe from this group, send email to > > > > [email protected]. > > > > For more options, visit this group at > > > >http://groups.google.com/group/google-appengine?hl=en. > > > > -- > > > Nick Johnson, Developer Programs Engineer, App Engine > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google App Engine" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group at > >http://groups.google.com/group/google-appengine?hl=en. > > -- > Nick Johnson, Developer Programs Engineer, App Engine
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