Add H2 specific SessionRepositoryCustomizer

[repolevedavaj]

This PR introduces a SessionRepositoryCustomizer for H2. The implementation is quite similar to the one for Oracle. The only difference is the needed datatype casts for the parameters.

[marcusdacoregio]

Hi, @repolevedavaj. Thanks for the PR.

Can you elaborate more why such customizer is needed? Does it also work if H2 compability mode is set to Postgres, for example?

[repolevedavaj]

Hi, @repolevedavaj. Thanks for the PR.

Can you elaborate more why such customizer is needed? Does it also work if H2 compability mode is set to Postgres, for example?

Hi @marcusdacoregio, I created the customizer as the existing ones were not working with a H2 database, even in compatibility mode. I am using the Postgres one in production and the H2 one while executing tests. I did not test it specifically if it works in Postgres compatibility mode.

[marcusdacoregio]

I think that there is uncertainty whether this customizer will work fine with any combination of H2's configurations and there is no easy way for us to test it, therefore I think it would be better to not add it now. If we receive more reports asking for an H2 customizer, we can combine the use-cases and provide one. Does that sound ok for you?

[repolevedavaj]

Hi @marcusdacoregio, I see your point. According to H2, the used syntax is not depending on a specific mode, but I don't know if it behaves differently with in specific modes. For me its fine to close the PR as suggested.