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kotlinlang

Hello guys.
Did anybody have a problem with `@GeneratedValue`?
I'm using Micronaut Data with R2DBC.
I have a class:
```data class Product(
    @Id
    @GeneratedValue
    var id: Long? = null,
    val publicId: UUID,
    val code: String,
    ...
)```
When I'm trying to save a new record (`id = null`) with `repository.save(product)` the exception has thrown...
```null value in column "id" of relation "products" violates not-null constraint```
I'm not sure what is wrong...

I don't use it, but remember when I tested it briefly that I sent in a random UUID into the entity, since I wanted to keep it not nullable. And when I called save, it returned with a new generated Id from the repo.

So when calling `save` it always generates a new UUID, but on `update` it uses it. But yeah, it's not a perfect match to always be forced to have a random value in it.

Disclaimer, I haven't tested any further than passing by.

It was my mistake. I had to use auto generated primary key column in definition of the table. :man-shrugging: