goldmedal commented on issue #12144:
URL: https://github.com/apache/datafusion/issues/12144#issuecomment-2447197521

   > We are pretty close to completing the project to have the documentation 
programatically available
   > 
   > * [[EPIC] Automatically generate all function documentation from codeĀ 
#12740](https://github.com/apache/datafusion/issues/12740)
   >   I think this wuold be straightforward to add now
   
   I checked the documents. It's very good for human reading but I think it 
doesn't have the type information (parameters and return_type). They're 
important for the third-party tool to integrate with DataFusion-based 
applications.
   
   Following the `information_schema` way, I think we need 
[routines](https://www.postgresql.org/docs/current/infoschema-routines.html) 
and 
[parameters](https://www.postgresql.org/docs/current/infoschema-parameters.html)
 (They're the Postgres tables but I think we don't need to implement all the 
column of theirs). 
   
   @findepi are you still working on this?
   I would like to push this feature. If you don't have bandwidth, I could help 
to implement the information_schema parts.
   


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