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Performance issue in a query due to compareTo calls

Hello, we have a question again regarding query performance. The query: SELECT v FROM Values v WHERE v.step.stepNumber = ? is very slow in comparing to the query: SELECT v FROM Values v WHERE v.stepNumber = ? Can you explain why the first query needs so much time or do you have a hint

Change Sequcene Id

of an existing sequence. The purpose of the allocate(...) method is different (hint to improve

OutOfMemory in Server

. It went from 8G to 11G, then the error came. Can You give some hint, why this OOM happens? jakab

Web Framework Recommendation for leveraging JPA + ObjectDB

+ ObjectDB" couple successfully in conjunction with a contemporary Web Framework ? Any hints/recommendations

find() delay

on inverse fields and also this forum thread. support Support Thanks for you hints. I read

Memory consumption of empty Strings

which Strings should be loaded via the String.internal() function. Hint for this enhancement

Entity can be found by find() but not by query

it then this could be very helpful in understanding this situation. support Support It seems that the hint with the deactivated

ODB-FileWriter holds unecessary entity reference after transaction and entity manager are closed

Support Thank you very much for your hint. If we enhance all entities then it works. btc_es BTC

@FetchGroup in JPA similar to JDO

; (...) } then when running query you specify as a hint that this query should return Entities

Tracking changes to new collections (in enhancement mode) after flush

. We will check what can be done. support Support A further hint is also that the affected list in

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Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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