Does anyone know why Flyte workflows always seem to have unnecessary connections between tasks? Like A -> B -> C, but also A -> C

can you elaborate? maybe a code example, i'm really not following. this is just the transitive property, if c depends on b and b depends on a then c will always execute after a right?

Yes, it is just a bit annoying to see that extra line in the DAG visualization... Would look much cleaner if the transitive dependency would not be shown

oh sure, my understanding is that the UI displays the exact task-level dependencies. for example:

@task
def task_a() -> (int, int):
    # ...

@task
def task_b(m: int) -> int:
    # ...

@task
def task_c(n: int, l: int) -> int:
    # ...

@workflow
def wf() -> int:
    x, y = task_a()
    z = task_b(m=x)
    return task_c(n=y, l=z)

would create exactly what you mentioned. is that not the case? or do you want to UI to automatically remove the a->c line because it's redundant?

yeah, would be nice if the UI would not show the redundant lines... not sure if they are needed in the backend...

Why is it redundant

IMO it would be more confusing to remove the line.

simple example where the extra lines are a bit confusing:

@Felix Ruess have I correctly labeled the 'extra' lines in your example?

yes

I will log this as an issue to track it, discuss it internally, and get back to you when I have a clearer understanding of the logic and rationale for the current implementation.