[ARROW-8752] [Rust] Remove unused hashmap

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: Rust
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/17174
• Assignee: QP Hou
• Reporter: QP Hou
• Created: 09/May/20 23:49
• Updated: 11/Jan/23 08:02
• Resolved: 13/May/20 07:32

Description

both base_nodes and base_nodes_set doesn't seem to be used at all in build_array_reader.

Issue Links

• links to: GitHub Pull Request #7139