[THRIFT-5314] Enum forward compatibility

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.13.0, 0.14.0
• Fix Version/s: 0.15.0
• Component/s: Rust - Compiler, Rust - Library
• Assignee: Allen George
• Reporter: Rémi Dettai
• Created: 17/Nov/20 09:11
• Updated: 11/Sep/21 12:31
• Resolved: 01/Mar/21 19:48

Description

It seems that enums in the Rust implem are not forward compatible. As Thrift enums are mapped 1:1 to Rust enum, if a newer Thrift definition adds a case to an enum, an error will be returned when parsing the message.

Is this intended? Is there a workaround?

(We met this problem in the Rust parquet implem: https://issues.apache.org/jira/browse/ARROW-10553)

Issue Links

• is superceded by: THRIFT-5392 Thrift Enums should generate forward compatible enum like code
• relates to: THRIFT-4101 Make auto-generated Rust enums and unions more user-extensible
• links to: GitHub Pull Request #2337