Thanks for your advice, but it still cannot solve the problem. rpalache wrote: > > Can you please try the following property: > openjpa.jdbc.SubclassFetchMode: none > > The following will give more details: > > http://openjpa.apache.org/builds/latest/docs/manual/manual.html#openjpa.jdbc.SubclassFetchMode > and > http://openjpa.apache.org/builds/latest/docs/manual/manual.html#ref_guide_perfpack_eager > > > Regards, > Ravi. > > > > > Jeff Yin wrote: >> >> if i use a jpql query select a from A a >> all the instances of the subclasses of A will be returned, how can i >> disable this behavior? thanks. >> > >
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