[ARROW-8725] [Rust] redundant directory walk in rust parquet datasource code

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: Rust, Rust - DataFusion
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/24878
• Assignee: QP Hou
• Reporter: QP Hou
• Created: 06/May/20 23:48
• Updated: 11/Jan/23 08:02
• Resolved: 07/May/20 12:15

Description

In the rust code base, `common::build_file_list` is called within `ParquetExec::try_new`, so there is no need to build the file list before calling `try_new`.

Issue Links

• links to: GitHub Pull Request #7119