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Are Python UDFs supported in Unity Catalog?

data_boy_2022
New Contributor III

I am trying to execute a UDF written in Python and receive the following error message:

Error message:

 [UC_COMMAND_NOT_SUPPORTED] UDF/UDAF functions are not supported in Unity Catalog.;

The limitation is not mentioned in the docs( https://docs.databricks.com/release-notes/unity-catalog/20220825.html#limitations ) so I assume UDFs are supported.

Is that correct? What else does the error message tell me?

2 REPLIES 2

-werners-
Esteemed Contributor III

Indeed it is not mentioned in the limitations.

This blog mentions python UDFs in UC, but in databricks SQL, not the classic DE workspace.

So it seems that it is not (yet) supported, as the docs only mention SQL functions.

That's unfortunate. UC is kinda useless if UDFs and streaming is not supported. Do you know when these features will be available?

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