[jira] [Commented] (AVRO-3159) Error in AVRO specification

["Oscar Westra van Holthe - Kind (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AVRO-3159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17545793#comment-17545793 ] 

Oscar Westra van Holthe - Kind commented on AVRO-3159:
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I've added a PR to clarify this (by mentioning the index value in addition to how it's encoded). Please accept or drop as appropriate.

> Error in AVRO specification
> ---------------------------
>
>                 Key: AVRO-3159
>                 URL: https://issues.apache.org/jira/browse/AVRO-3159
>             Project: Apache Avro
>          Issue Type: Bug
>          Components: doc
>            Reporter: Dave Cole
>            Assignee: Ryan Skraba
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 1.11.1
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> On [http://avro.apache.org/docs/current/spec.html#binary_encode_primitive] the example given for encoding Unions appears to have an error:
> {quote}For example, the union schema ["null","string"] would encode:
> null as zero (the index of "null" in the union):
> 00
> the string "a" as one (the index of "string" in the union, encoded as hex 02), followed by the serialized string:
> 02 02 61
> {quote}
> Surely the "string" in the union is encoded as hex 01...  It is defined as "the zero-based position within the union of the schema".  The list has only two entries, so 02 is not a valid index.



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