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    <p>The behavior of <a href="http://code.google.com/appengine/docs/python/datastore/queryclass.html#Query_count" rel="noreferrer"><code>Query.count()</code></a> is inconsistent with the documentation when no limit is explicitly specified - the documentation indicates that it will count "until it finishes counting or times out." GAE <a href="http://code.google.com/p/googleappengine/issues/detail?id=3671" rel="noreferrer">Issue 3671</a> reported this bug (about 3 weeks ago).</p> <p><strong>The workaround</strong>: explicitly specify a limit and then that value will be used (rather than the default of 1,000).</p> <p>Testing on <a href="http://shell.appspot.com/" rel="noreferrer">http://shell.appspot.com</a> demonstrates this:</p> <pre><code># insert 1500 TestModel entites ... # ... &gt;&gt;&gt; TestModel.all(keys_only=True).count() 1000L &gt;&gt;&gt; TestModel.all(keys_only=True).count(10000) 1500L </code></pre> <p>I also see the same behavior on the latest version of the development server (1.3.7) using this simple test app:</p> <pre><code>from google.appengine.ext import webapp, db from google.appengine.ext.webapp.util import run_wsgi_app class Blah(db.Model): pass class MainPage(webapp.RequestHandler): def get(self): for i in xrange(3): db.put([Blah() for i in xrange(500)]) # can only put 500 at a time ... c = Blah.all().count() c10k = Blah.all().count(10000) self.response.out.write('%d %d' % (c,c10k)) # prints "1000 1500" on its first run application = webapp.WSGIApplication([('/', MainPage)]) def main(): run_wsgi_app(application) if __name__ == '__main__': main() </code></pre>
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    1. POGoogle App Engine - getting count of records that match criteria over 1000
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    1. USDavid Underhill
    1. USDavid Underhill
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    1. POGoogle App Engine - getting count of records that match criteria over 1000
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    1. COI'll try your solution and see how far I get. The notion that you have to supply a limit to the count is patently absurd, but hopefully it will get resolved soon. Thank you kindly!
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    2. COIt's not absurd - counting costs O(n) time, and presumably there's an upper limit on how much time you are willing to spend counting?
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      1. USNick Johnson
    3. COthat's weird!? (p.s. Your second example can't work since put in batch is limited to 500)
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      1. USsystempuntoout
 

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