Nice one. If you have any questions please use the Twig discussion
group:
http://groups.google.com/group/twig-persist
Im about like 24/7 at the moment!
On 16 Mar 2010, at 13:45, Max wrote:
Hi John,
Many thanks.
I will prepare large set of testing data and try to use Twig to model/
query them. Will get back to you soon.
Best regards,
Max
On Mar 16, 2:14 pm, John Patterson <jdpatter...@gmail.com> wrote:
Thats right unfortunately. Like Jeff said, that is what a RDBMS is
probably doing anyway but it does locally and returns only results
over the wire back to you.
But with Twigs parallel commands no matter how many queries you need
to run, they will not take extra time. You could query on 100
criteria and join them in your app code for not a significant
increase
in response time.
John
On 16 Mar 2010, at 13:08, Max wrote:
to query with n filters on one relation index entity
*should be*
to query with n filters on User with many UserSkill entity children
On Mar 16, 2:05 pm, Max <thebb...@gmail.com> wrote:
Hi John,
Thanks for your reply. To be honest I am quite disappointed that
GAE
can not perform such query directly.
According do your suggestion, to query with n filters on one
relation
index entity, we need to:
1, perform n separate queries to obtain n cursors of UserSkill
entities by some sorting order
2, use in-memory zig-zag method to obtain User keys match all query
3, use a batch get to obtain all User entities
Please correct me if my understanding is wrong.
Best regards,
Max
--
You received this message because you are subscribed to the Google
Groups "Google App Engine for Java" group.
To post to this group, send email to google-appengine-java@googlegroups.com
.
To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com
.
For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en
.
--
You received this message because you are subscribed to the Google Groups "Google
App Engine for Java" group.
To post to this group, send email to google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en.
