Forward Lineage

[vishalag001]

Following up on the discussion: #1081
I created a new foxx service which gives the forward lineage for a given write event. I was able to visualise the forward lineage on the lineage overview page.

Attaching the screenshot of the same.

The PR is for the backend change for the forward lineage.

[sonarqubecloud]

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[dk1844]

Great work, @vishalag001, thank you for providing this!

I have actually been working on something similar and few days ago, I have started pushing this, too - in #1091.

I am sure, that we can learn from each other's codebases and finish the feature successfully, now, here or there! 🤝

[dk1844]

So have actually went through this PR and it is extremely similar to #1091 (mostly there is just difference in wording or file naming).

There is one important difference, though, it is how observedReadsByWrite are defined - not only we need to assess reads happening after the initial write, but also, we need to disregard read after a rewrite (since the lineage would get broken at that point)

@vishalag001, would you mind reviewing #1091, too?

[wajda]

I think we can close it in favour of #1091 if you guys don't mind.