even if a property is not indexed is needs to be written to the datastore so it costs 1 write instead of 2 (one to the datastore and one to the index). a list property adds 1 write per item for example + another one for each one if they are indexed.
vlad UNEXISTING props do not add any write cost ;) On Dec 23, 2012, at 2:45 PM, vlad <[email protected]> wrote: > My understanding is UNINDEXED properties add no write cost at all. See > https://developers.google.com/appengine/docs/python/datastore/entities#Understanding_Write_Costs > > > On Friday, December 21, 2012 1:29:26 PM UTC-8, Ryan Chazen wrote: > Hi - I find the following a bit confusing - is it correct? > > Using unindexed properties only: > > If I write 10 numbers in a list to the datastore, _ah/admin on the local dev > server shows 10 write operations. > If I write 10 numbers inside an embedded entity (or comma delimited), the > local dev server shows 1 write operation. > > Since billing is by write operations, is using the list 10x more expensive in > reality? If so, I need to make sure all of my unindexed properties get put > into an embedded entity first before writing as it will mean I only use 1 > write op for all unindexed properties... > > -- > 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/-/CGmpJvoIF_EJ. > 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. -- 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.
