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Performance and memory usage of queries

. What's all done in the execution of queries? Why is so much memory is required, although from the application point
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performance limit

index on atribute createdBy is used. Can you please give some explanation on this or point
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possible index required for improving query performance

separated by # (e.g. Point#1). A collection can be specified as a comma separated list of elements
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Problem with merging / persisitng objects with @Embeddable field

is wrong. I realized that some time after the post. Sorry for false alarm and thanks for pointing error in my model. lwalkowski
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Querying error - java.lang.ClassCastException: com.objectdb.o.STV

I'm getting the ClassCastException below when querying objects. As yet I haven't been able to track down the exact circumstance in which it occurs - saving and querying objects works fine on attempts to recreate - but presumably at some point an object gets saved which objectdb doesn't like. Any
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Question about roadmap

on roadmap Support for http://java.net/jira/browse/JPA_SPEC-28 So are those points on your roadmap
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Remove an entity which attributes were changed - OptimisticLockException

plugins and find the exact point of difference between these two modes. I have found the problem
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remove() and persist() in same transaction => Attempt to reuse an existing primary key value

(another table). On this point we get no conflicts. If we remove additional data for Entity (B
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Removing objects where ManyToMany relationships exist

go through all Entities in the database to check if there's a TreeSet where an entry points to an to-be-removed
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Repair broken references in entities

, and then references to the old entity should point to the new one (eliminating broken references). btc_es