[jira] [Resolved] (AVRO-3625) [Rust] UnionSchema.is_nullable() should return true if any of the variants is Schema::Null

["Martin Tzvetanov Grigorov (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AVRO-3625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Tzvetanov Grigorov resolved AVRO-3625.
---------------------------------------------
    Fix Version/s: 1.12.0
                   1.11.2
       Resolution: Fixed

> [Rust] UnionSchema.is_nullable() should return true if any of the variants is Schema::Null
> ------------------------------------------------------------------------------------------
>
>                 Key: AVRO-3625
>                 URL: https://issues.apache.org/jira/browse/AVRO-3625
>             Project: Apache Avro
>          Issue Type: Bug
>          Components: rust
>    Affects Versions: 1.11.1
>            Reporter: Martin Tzvetanov Grigorov
>            Assignee: Martin Tzvetanov Grigorov
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 1.12.0, 1.11.2
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Currently UnionSchema::is_nullable() returns `true` if the first variant is `"null"`.
> The specification [says|https://avro.apache.org/docs/1.11.1/specification/#unions]: "Thus, for unions containing “null”, the “null” is usually listed first, since the default value of such unions is typically null."
> That is, the `null` is *usually* at the first position{*},{*} but this is not mandatory!



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