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How to define DLT table with cyclic reference

hadoan
New Contributor II

 

@Dlt.table
def table_A():
  return (
   dlt.read_stream(...)
  )

@dlt.table
def table_join_A_and_C():
  df_A = dlt.read_stream(table_A)
  df_C = dlt.read_stream(table_C)
  return (
   ....df_A.join(df_C)
  )

@dlt.table
def table_C():
  return (
   dlt.read_stream(table_join_A_and_C).....

  )

 

I got an error when defining DLT like above. Does DLT support cyclic reference?

Thanks in advance.

 

 

3 REPLIES 3

Kaniz_Fatma
Community Manager
Community Manager

Hi @hadoanIt appears that you’re encountering a cyclic reference issue when defining DLT tables. Unfortunately, DLT does not directly support cyclic references. However, you can work around this limitation by restructuring your code. One approach is to break the circular dependency by creating intermediate tables or using alternative logic. 

hadoan
New Contributor II

Thanks for your reply, I will rethink the approach. 

Rishabh_Tiwari
Community Manager
Community Manager

Hi @hadoan ,

Thank you for reaching out to our community! We're here to help you.

To ensure we provide you with the best support, could you please take a moment to review the response and choose the one that best answers your question? Your feedback not only helps us assist you better but also benefits other community members who may have similar questions in the future.If you found the answer helpful, consider giving it a kudo. If the response fully addresses your question, please mark it as the accepted solution. This will help us close the thread and ensure your question is resolved.

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Thanks,
Rishabh

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