alamb commented on issue #7845:
URL: 
https://github.com/apache/arrow-datafusion/issues/7845#issuecomment-2016956940

   I think we are now pretty close to being able to support JSON / JSONB via 
scalar functions
   
   The basic idea might be:
   1. Implement ScalarUDFs for the relevant JSON/BSON functioanlity
   2. Implement a rewrtier that rewrites whatever syntax you want on those 
columns into the corresponding function calls
   
   This is basically how Array function support is now implemented 
   
   Here is the library of array functions 
https://github.com/apache/arrow-datafusion/tree/main/datafusion/functions-array/src
   
   Here is the rewrite
   
   
https://github.com/apache/arrow-datafusion/blob/1e4ddb6d86328cb6596bb50da9ccc654f19a83ea/datafusion/functions-array/src/rewrite.rs#L40-L180


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