Question

In Hibernate, the default value of the property dynamic-update = false. But it seems, that this is not good for performance. Then why is this set to false by default?

Answer 1

The only drawback I can see here is that many different queries can increase a load on query parser or confuse query optimizer. Therefore Hibernate documentation recommends you to check performance impact in your particular case:

Although these settings can increase performance in some cases, they can actually decrease performance in others.