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From "Ron Bodkin (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AVRO-739) Add Date/Time data types
Date Tue, 25 Jan 2011 22:41:45 GMT

    [ https://issues.apache.org/jira/browse/AVRO-739?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12986730#action_12986730
] 

Ron Bodkin commented on AVRO-739:
---------------------------------

Sorry I forgot to pate in Doug Cutting's design:
The way that I have imagined doing this is to specify a standard schema
for dates, then implementations can optionally map this to a native date
type.

The schema could be a record containing a long, e.g.:

{"type": "record", "name":"org.apache.avro.lib.Date", "fields" : [
   {"name": "time", "type": "long"}
  ]
}

Java could read this into a java.util.Date, Python to a datetime, etc.
Such conventions could be added to the Avro specification.

Does this sound like a reasonable approach?

And also this email thread -

On 01/18/2011 09:19 AM, Jeremy Custenborder wrote:
I agree with storing it as a long. How would you handle this in code
generation and serialization? Would you envision hooks during code
generation that would generate a member that is the native date time
for the language?

Yes.  Just as "bytes" is represented in Java by java.nio.ByteBuffer,
"org.apache.avro.lib.Date" could be represented by java.util.Date.

Does the serializer handle a date object that is
native to the language?

Yes, serializers and deserializers would need to implement this mapping.

Does this sound like a reasonable approach?

I really like the idea of having a standard
datetime as a supported type of avro. It's a problem that everyone has
to solve on their own.


> Add Date/Time data types
> ------------------------
>
>                 Key: AVRO-739
>                 URL: https://issues.apache.org/jira/browse/AVRO-739
>             Project: Avro
>          Issue Type: New Feature
>          Components: spec
>            Reporter: Jeff Hammerbacher
>


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