Wes McKinney created ARROW-4083: ----------------------------------- Summary: [C++] Allowing ChunkedArrays to contain a mix of DictionaryArray and dense Array (of the dictionary type) Key: ARROW-4083 URL: https://issues.apache.org/jira/browse/ARROW-4083 Project: Apache Arrow Issue Type: Improvement Components: C++ Reporter: Wes McKinney Fix For: 0.13.0
In some applications we may receive a stream of some dictionary encoded data followed by some non-dictionary encoded data. For example this happens in Parquet files when the dictionary reaches a certain configurable size threshold. We should think about how we can model this in our in-memory data structures, and how it can flow through to relevant computational components (i.e. certain data flow observers -- like an Aggregation -- might need to be able to process either a dense or dictionary encoded version of a particular array in the same stream) -- This message was sent by Atlassian JIRA (v7.6.3#76005)