[GitHub] [airflow] ephraimbuddy commented on issue #17686: Xcomms with Taskflow API cause unwanted dependencies in UI

[GitBox <gi...@apache.org>]

ephraimbuddy commented on issue #17686:
URL: https://github.com/apache/airflow/issues/17686#issuecomment-931654295


   The issue is the way you are defining the relationship.
   This should work: 
   ```python 
       date = set_date()
       xcomm_task2(date)>>xcomm_task3(date)
   ```
   Because xcomm_task2 needs data from set_date same as xcomm_task3
   
   Anytime you call a task decorated function, you create a task. 
   The code below will create two different tasks from set_date:
   ```python 
       xcomm_task2(set_date())>>xcomm_task3(set_date())
   ```
   That's why you have to assign the call to `set_date()` to a variable and pass the data around so as to create the dependency that you want.


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