avro-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (AVRO-601) Enhance schema parser to allow arbitrary properties to be defined on a record field
Date Tue, 27 Jul 2010 22:38:17 GMT

     [ https://issues.apache.org/jira/browse/AVRO-601?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Doug Cutting reassigned AVRO-601:
---------------------------------

    Assignee: Doug Cutting

> Enhance schema parser to allow arbitrary properties to be defined on a record field
> -----------------------------------------------------------------------------------
>
>                 Key: AVRO-601
>                 URL: https://issues.apache.org/jira/browse/AVRO-601
>             Project: Avro
>          Issue Type: Improvement
>          Components: java, spec
>         Environment: All
>            Reporter: David Rosenstrauch
>            Assignee: Doug Cutting
>            Priority: Minor
>
> It's currently not possible to add an arbitrary property on a record field.  e.g., in
the following example, although the schema parses fine, the "alias" property gets thrown away:
> {
>     "name": "KVPair",
>     "type": "record",
>     "fields" : [
>         {"name": "key", "type": "int", "alias": "EventTime"},
>         {"name": "values", "type": "bytes"}
>     ]
> }
> I had read the Avro spec and thought this was actually allowed ("Attributes not defined
in this document are permitted as metadata, but must not affect the format of serialized data.")
but it appears that such additional properties are only allowed at the schema level, not at
the field level too.
> This would be a really useful feature to have, as it would allow the user to define meta-data
on a field.  Currently the only other way to achieve the same behavior would be to do some
kind of hack using the field's "doc" attribute, which would be rather ugly. 

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message