[ARROW-13387] [C++] [Dataset] The CSV file format currently always disables multithreading

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/29058
• Assignee: Unassigned
• Reporter: Weston Pace
• Created: 19/Jul/21 19:12
• Updated: 11/Jan/23 08:32

Description

Previously the streaming CSV reader was a no-op and so it was a non-issue.  However, now that there is a parallel CSV reader it should be re-enabled.

 

https://github.com/apache/arrow/blob/81ff679c47754692224f655dab32cc0936bb5f55/cpp/src/arrow/dataset/file_csv.cc#L118