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From "Simon Willnauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-4087) Provide consistent IW behavior for illegal meta data changes
Date Tue, 29 May 2012 19:39:22 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-4087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Simon Willnauer updated LUCENE-4087:
------------------------------------

    Description: 
Currently IW fails late and inconsistent if field metadata like an already defined DocValues
type or "un"-omitting norms.


we can approach this similar to how we handle consistent field number and:
 
* throw exception if indexOptions conflict (e.g. omitTF=true versus
false) instead of silently dropping positions on merge
* same with omitNorms
* same with norms types and docvalues types
* still keeping field numbers consistent

this way we could eliminate all these traps and just give an
exception instead.
    
> Provide consistent IW behavior for illegal meta data changes
> ------------------------------------------------------------
>
>                 Key: LUCENE-4087
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4087
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: core/index
>    Affects Versions: 4.0
>            Reporter: Simon Willnauer
>             Fix For: 4.0, 4.1, 5.0
>
>
> Currently IW fails late and inconsistent if field metadata like an already defined DocValues
type or "un"-omitting norms.
> we can approach this similar to how we handle consistent field number and:
>  
> * throw exception if indexOptions conflict (e.g. omitTF=true versus
> false) instead of silently dropping positions on merge
> * same with omitNorms
> * same with norms types and docvalues types
> * still keeping field numbers consistent
> this way we could eliminate all these traps and just give an
> exception instead.

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