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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3186) DocValues type should be recored in FNX file to early fail if user specifies incompatible type
Date Thu, 09 Jun 2011 11:39:59 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13046479#comment-13046479
] 

Uwe Schindler commented on LUCENE-3186:
---------------------------------------

Hi Robert,

I am also not really happy with this trend. I just opened LUCENE-3187 to start a discussion.
In my opinion we should improve documentation instead.

> DocValues type should be recored in FNX file to early fail if user specifies incompatible
type
> ----------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-3186
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3186
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: core/index
>    Affects Versions: 4.0
>            Reporter: Simon Willnauer
>            Assignee: Simon Willnauer
>             Fix For: 4.0
>
>
> Currently segment merger fails if the docvalues type is not compatible across segments.
We already catch this problem if somebody changes the values type for a field within one segment
but not across segments. in order to do that we should record the type in the fnx fiel alone
with the field numbers.
> I marked this 4.0 since it should not block the landing on trunk

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