Rich-T-kid commented on issue #24111: URL: https://github.com/apache/datafusion/issues/24111#issuecomment-5417039428
This is a problem that came to mind but it shouldn't be an issue. This epic shouldn't be affect how existing kernels/operators interact with the dictionary data type. Aggregations now natively supporting `dict<_,v>`, so once a column is dictionary encoded it is never cast to its value type. > In general I think the pattern pattern for Dictionary types should be to apply the operation to the values array, and then apply via take and the indices. > For example to support hashing on a dictionary array, the values should be hashed and then when a key hash is needed, look up in the corresponding values hashes makes sense to me, will keep in mind -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
