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From "Robert Newson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COUCHDB-1410) Formally define number support
Date Wed, 15 Feb 2012 13:55:03 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-1410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13208478#comment-13208478
] 

Robert Newson commented on COUCHDB-1410:
----------------------------------------

I appreciate that the format is fully defined. Perhaps what I mean, instead, is the precision
with which those numbers can be manipulated in view servers? I've certainly been stung by
some crazy number rounding issues in the past, I don't think it's reasonable behavior for
a database.

It sounds like this ticket is really two issues, 1) numbers can roundtrip safely to and from
JSON, 2) numbers can be computed with within known (and consistent) bounds.

Issue 1 is something we need to resolve in ejson for the 1.2.0 release but sounds simple.
To fulfill this ticket, we have to commit to not breaking roundtrip safety in future versions.

Issue 2, I suspect, is contentious. Or, at least, I suspect I desire stronger numeric handling
than javascript typically delivers. I'll be happy here if we document, and preserve, some
minimal standard.

/ramble

                
> Formally define number support
> ------------------------------
>
>                 Key: COUCHDB-1410
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1410
>             Project: CouchDB
>          Issue Type: Improvement
>    Affects Versions: 1.2
>            Reporter: Robert Newson
>            Priority: Blocker
>             Fix For: 1.3
>
>
> The JSON spec has a very loose definition of Number. CouchDB, as a database, should have
well-defined and first class support for numbers (both integral and decimal). The precision
of number support should be formally specified as should the algorithm used to represent floating-point
values, especially where an approximation must be made in the conversion.

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