alamb opened a new pull request #812: URL: https://github.com/apache/arrow-datafusion/pull/812
# Which issue does this PR close? Re https://github.com/apache/arrow-datafusion/issues/790 # Rationale for this change In order to implment the GroupBy approach described https://github.com/apache/arrow-datafusion/issues/790, hashing needs to support all types that the existing grouping operator does, including dictionary arrays, including `DictionaryArray`s. Also, support for hashing dictionaries is also necessary (but I don't think sufficient) to support joining on `DictionaryArray` columns # What changes are included in this PR? Implement hashing for `DictionaryArray` types by hashing the values in the dictionary # Are there any user-facing changes? No (not yet), and no API changes -- 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]
