Missing fields in constraints model for manifest v12

[airibarne]

Hi @yu-iskw! Firstly, thank you for your contribution, excellent and very needed package within the DBT ecosystem 😄

We are building a tool in top of the dbt-artifacts-parser, and we've found the following: while node column constraints schema specification in the DBT Manifest v12 has to and to_columns fields, the current Pydantic parser interface for v12 does not have them, while has extra=forbid setting. This makes the parser to fail parsing v12 manifests obtained from projects having models with constraints.

Here the v12 schema specification: https://schemas.getdbt.com/dbt/manifest/v12/index.html#nodes_additionalProperties_anyOf_i0_columns_additionalProperties_constraints

Here the class representation: https://github.com/yu-iskw/dbt-artifacts-parser/blob/main/dbt_artifacts_parser/parsers/manifest/manifest_v12.py#L128-L136

Would be happy to make a PR after any discussion you might want to have.

[yu-iskw]

@airibarne thank you for raising the issue. I didn't catch up with the changes on manifest v12. It seems that the dbt version in manivest v12 is 1.9.0a1 at the time of writing this. According to my research, to and to_columns were added after changing the version in the JSON schema. I feel it might be good to wait until the stable version of dbt 1.9 is released for the reliability, though I don't think we will have degraded changes in the schema until then. What do you think?

https://github.com/dbt-labs/dbt-core/blob/98fddcf54ff985fc97e0aafccb357f3d93d3fdbd/schemas/dbt/manifest/v12.json#L16

[psygnoser]

I've already raised this month ago here https://github.com/yu-iskw/dbt-artifacts-parser/issues/99

[airibarne]

Hi there! Oh @psygnoser, sorry I did not find the issue at first glance. It is indeed the same I'm reporting here.

@yu-iskw, it's no blocker for us to wait until the release of stable 1.9, so we have no problem with that. However, we've encountered this issue trying to parse a manifest generated with 1.8, so there might be other users of this library encountering this error. Just let me know if there's anything we can do about it :smile:

[yu-iskw]

Thought the update doesn't solve this issue, I am updating manifest_v12.py with the JSON schema at dbt-core 1.8.6.

https://github.com/yu-iskw/dbt-artifacts-parser/pull/110

[pgoslatara]

@yu-iskw Any thoughts on a stable way forward on this? I just opened #112 because one of my scripts failed due to the presence of a new field. Feels like we should permit these new fields, otherwise we will experience failures due to the presence of fields we do not use.