alamb opened a new issue #87: URL: https://github.com/apache/arrow-datafusion/issues/87
*Note*: migrated from original JIRA: https://issues.apache.org/jira/browse/ARROW-8464 Usecases: Efficiently process large columns of low cardinality Strings * BatchIterator should accept both DictionaryBatch and RecordBatch * Type Coercion optimizer rule should inject expression for converting dictionary value types to index types (for equality expressions, and IN(values, ...) * Physical expression would lookup index for dictionary values referenced in the query so that at runtime, only indices are being compared per batch -- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
