Weston Pace created ARROW-11883:
-----------------------------------
Summary: [C++] Add ConcatMap, MergeMap, and an async-reentrant
version of Map
Key: ARROW-11883
URL: https://issues.apache.org/jira/browse/ARROW-11883
Project: Apache Arrow
Issue Type: Sub-task
Components: C++
Reporter: Weston PaceThese are all needed for the current ARROW-7001 work. I'm breaking them out on their own so they can be reviewed in isolation. -- This message was sent by Atlassian Jira (v8.3.4#803005)
