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https://issues.apache.org/jira/browse/AVRO-3216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Tzvetanov Grigorov resolved AVRO-3216.
---------------------------------------------
Fix Version/s: 1.12.0
Resolution: Fixed
> Rust: failure reading multiple use of named schemas in file
> -----------------------------------------------------------
>
> Key: AVRO-3216
> URL: https://issues.apache.org/jira/browse/AVRO-3216
> Project: Apache Avro
> Issue Type: Bug
> Reporter: Guðjón
> Assignee: Martin Tzvetanov Grigorov
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.12.0
>
> Attachments: weather-complex.avro
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> I have an avro file that contains records of a specific schema. The file is
> written using the java implementation, with the generated classes.
> The schema itself uses named schemas in a way where two or more fields use
> the same named schema. A good example of this could be this weather schema
> {code:json}
> {
> "doc": "A weather reading.",
> "name": "Weather",
> "namespace": "test",
> "type": "record",
> "fields": [
> {
> "name": "station",
> "type": "string"
> },
> {
> "name": "max_temp",
> "type": "Temp"
> },
> {
> "name": "min_temp",
> "type": "Temp"
> }
> ]
> }
> {code}
> with the named schema Temp being
> {code:json}
> {
> "doc": "A temperature reading.",
> "name": "Temp",
> "namespace": "test",
> "type": "record",
> "fields": [
> {
> "name": "temp",
> "type": "long"
> }
> ]
> }
> {code}
> The schema that is written in the file inlines the Temp schema in the case of
> the first field (max_temp) but references it by name in the second field
> (min_temp). In both java and python implementations it manages to read the
> file correctly but the avro-rs crate fails on the second field with a message:
> {noformat}
> panicked at 'Failure reading file: Unknown primitive type: Temp'
> {noformat}
> The attached file weather-complex.avro is a file written using the java
> library with generated classes and contains one record.
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