Rollback / down migrations

[heyarne]

Hi! I didn't find any information on how to undo migrations, am I missing something or is it currently unsupported? And if they are currently unsupported, are there any plans to change this?

[michael-simons]

That’s correct, it isn’t there yet.

I won’t go down a fully automated route (maybe apart from the the catalog based approach, there I know the opposite operations), but the same approach like Flyway (you’ll need to provide an undo migration with the reverse op) as cypher too and than we manage the rest.

I’ll keep this here as new feature request.

In general, thanks a lot for your interest!

[heyarne]

Thank you for the quick response! This tool has already been quite helpful to me as is. I'm using Cypher-migrations personally, and providing a $migration-name.down.cypher next to the original migration would 100% work for me.

[michael-simons]

Thank you for your kind words, much appreciated.

Current plan is repeatable migrations first, which is nearly done.

Unrelated to that, what is your Java env if I may ask? 8, 11, 17 or newer?

[heyarne]

It's java 11 at the moment, but I control the environments so I'm free to update whenever it makes sense.

[michael-simons]

Thanks! My plan is going to 17 for 2.0 by the end of the year. Aligned a bit with Spring Boot 3 and most likely Quarkus 3 as well.

I’ll will support 1.13.x or 1.14.x still, but rather not adding bigger things to them.

Don’t know yet how much of an effort undo migrations might be. Proper storing them in our internal subgraph might be the biggest part to do some thinking.

Again, thanks a lot for your input.