android - Join query in DataStore JPA java- App engine -


i want fetch data 2 different entites in jpa. using google datastore app engine store data on cloud storage. want fetch data 2 different entites making use of join query.as new app engine , datastore, don't know how that. referred this link , says datastore doesn't support joins properly. true? pleas eguide me solve problem. thank you.

the ample places stated gae/datastore not "join queries". such https://developers.google.com/appengine/docs/java/datastore/jdo/overview-dn2

if instead using google-cloud-sql (why tag question sql?) suggest update question state that


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