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From "Ismael Juma (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AVRO-49) Efficient positive varints
Date Tue, 23 Jun 2009 19:40:07 GMT

    [ https://issues.apache.org/jira/browse/AVRO-49?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12723264#action_12723264
] 

Ismael Juma commented on AVRO-49:
---------------------------------

Sorry, I have been meaning to reply to this, but have been a bit busy. The fact that some
languages don't distinguish between signed and unsigned types doesn't seem to be a deterrent
for protocol buffers, so I am not sure if that's a strong argument.

However, there is no question that adding more choice at this level introduces additional
complexity. I still think that id-like integers are common enough (in my experience, more
common than signed integers) that it's worth optimising them as much as possible, but I understand
the motivation for not doing so.

In summary, from my point of view, "won't fix" is not ideal, but acceptable. :)

> Efficient positive varints
> --------------------------
>
>                 Key: AVRO-49
>                 URL: https://issues.apache.org/jira/browse/AVRO-49
>             Project: Avro
>          Issue Type: Improvement
>          Components: spec
>            Reporter: Ismael Juma
>
> Hi,
> Avro looks like an interesting project, so I was looking at the specification. I noticed
that varints use zig-zag encoding which is a good signed representation. However, id-like
values are very common and they are often always positive. I think it would be nice to support
them as efficiently as possible too (like Protocol Buffers, for example). Would something
like this be considered at all?

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