We want to implement a \"News feed开发者_运维百科\" where a user can see messages broadcasted by her friends, sorted with newest message first. But the
I created an entity in the Google App Engine datastore. Ho开发者_如何学Pythonw can I remove this entity?You haven\'t specified which API you\'re using.
The latency for a datastore put is about 150ms - http://code.g开发者_StackOverflow中文版oogle.com/status/appengine/detail/datastore/2010/03/11#ae-trust-detail-datastore-put-latency.
I know how to create table in Google Bigtable. How much data can I store while staying within the free quot开发者_如何学Pythona?I\'m guessing you want the quotas for the App Engine datastore.
I have persistent object, with a string property that often is over 500 charachters.Google App Engine says I need to save it as a com.google.appengine.api.datastore.Text.
I am trying to load the full object graph for User, which contains a collection of decks, which then contains a collection of cards, as
I created one table in Google App Engine. I 开发者_运维问答stored and retrieved data from Google App Engine.
I\'m trying to test the efficiency of the Google App Engine Datastore database. I want to know how fast it will query over a large dataset. And by large, I mean like 5-10mil entities of the same kind.
Suppose I have class Foo(db.Model): bar = db.ReferenceProperty(Bar) foo = Foo.all().get() Is there a way for me to do foo.bar without a query being made to Datastore? The docs say that foo.bar wi
This query works: item = db.GqlQuery(\"SELECT * FROM Item WHERE CSIN = 13\")[0] although if there are no results returned, it blows up in my face. (How can I get around this? A for loop seems dubio
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