hello everyone,

i want to provide detailed reports in my app. those reports require
data aggregated across full tables. in the client i want to plot the
change of values over time. this then requires to select very huge
data sets. however, in the app engine there is the restriction to get
1000 items in one request. so what is the best approach to do queries
with big result sets?

i can imagine that the client could split the big request into 10
smaller ones to collect, merge and display the data. but i think this
is complex, error prone and slow. i would rather like to do this on
the server side. but do i have to split the requests to work around
the 1000 items limit or is there another pattern that developers
should use to handle huge datasets.

basically i want to know two things:
1) how can i retrieve huge amounts of data regarding the get 1000 items limit?
2) is the app engine performance good enough to allow showing reports
on the client side i.e. can app engine retrieve and analyse
(avg,min,max,grouping) huge amounts of data (10k - 1million rows) fast
enough?

kind regards,
ingo

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