Personally I think you are taking the wrong approach.
Think about you data model as a set of objects/entities and their
relationships and not as relation tables.
Not knowing what you exactly trying to do means the following example
is probably wrong,
ie I don't know if you have a one to one relationship between business
and user
but if you do use references
ie user.business is a referenproperty pointing to a business
You can fetch the object in either direction, business.user_set() will
return all users that refer to the business
and user.business will return the business.
Have a think in those terms, then you don't have to do joins.
You may have to in some case create an intermediate entity that
references multiple entities .
T
On Mar 22, 8:16 pm, arnie parvez...@rediffmail.com wrote:
I have certain tables in datastore that are related to each other. say
user table is related to Business table. How can we use a single query
to fetch data from these tables at onece, say for a userid=2 we need
the record from user table as well as from Business table with
matching userid. I have seen that we cannot use sql like joins here in
gql.
So how can we construct a single query to get the desired records
Thanks
Arnie
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