[AVRO-3935] Support logical types in Rust Schema Compatibility checks

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.12.0, 1.11.4
• Component/s: rust
• Labels: pull-request-available rust

Language

Rust

• Assignee: Martin Tzvetanov Grigorov
• Reporter: Ralf Grubenmann
• Created: 09/Feb/24 15:51
• Updated: 27/Feb/24 07:45
• Resolved: 13/Feb/24 08:40

Description

The schema compatibility check does not support logical types in the schema.

 

E.g. even comparing

{  
  "name":"test",
  "type":{
    "type":"int",
    "logicalType":"date"
  }
}

with itself will fail compatibility check with an Inconclusive compatibility error.

 

It'd be great if logical types could be supported.

 

I have a fix that adds support for most logical types from the docs available here: https://github.com/Panaetius/avro/tree/add-rust-logical-type-compatibility

This does not support custom logical types.

This does not support Duration fixed type.

Note that this considers e.g. Int and Date to be compatible, the spec doesn't seem to define this properly but does mention that logical types are there to change a type without it being a breaking change, so I opted for making them compatible.

 

{{Linked PR: https://github.com/apache/avro/pull/2728 }}

 

Issue Links

• links to: GitHub Pull Request #2728