[ARROW-9519] [Rust] Improve error message when getting a field by name from schema

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: Rust
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25587
• Assignee: Jorge Leitão
• Reporter: Jorge Leitão
• Created: 18/Jul/20 06:20
• Updated: 11/Jan/23 08:07
• Resolved: 20/Jul/20 18:25

Description

Currently, when a name that does not exist on the Schema is passed to Schema::index_of, the error message is just the name itself. This makes it a bit difficult to debug.

 

I propose that we change the that error message to something like

Unable to get field named "nickname". Valid fields: ["first_name", "last_name", "address"]

to make it easier to understand.

Issue Links

• links to: GitHub Pull Request #7795