[ARROW-8434] [C++] Ipc RecordBatchFileReader deserializes the Schema multiple times

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.16.0
• Fix Version/s: 1.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/24614
• Assignee: Antoine Pitrou
• Reporter: Ben Kietzman
• Created: 13/Apr/20 22:06
• Updated: 11/Jan/23 08:00
• Resolved: 02/Jul/20 13:19

Description

This extra work is redundant and should be skipped

https://github.com/apache/arrow/blob/0c5296d3353e494bbf65c8cbc6b56525db6ae084/cpp/src/arrow/ipc/reader.cc#L800

Issue Links

• links to: GitHub Pull Request #7606