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Date: Thu, 21 May 2009 13:02:45 -0400
From: DM Smith <dmsmith555@gmail.com>
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To: java-dev@lucene.apache.org
Subject: Re: Lucene's default settings & back compatibility
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Michael McCandless wrote:
> On Thu, May 21, 2009 at 12:19 PM, Robert Muir <rcmuir@gmail.com> wrote:
>   
>> even as simple as changing default stopword list for some analyzer could be
>> an issue, if the user doesn't re-index in response to that change.
>>     
>
> OK, right.
>
> So say we forgot to include "the" in the default English stopwords
> list (yes, an extreme example...).
>   
"The" would be a bug fix. I think most users would expect that to be 
fixed. They might be willing, as I would be, to require all their 
indexes using that stopword list to be rebuilt.

How about a change that would be a bit more controversial, to which some 
would agree and others would not.

I wonder how many people are creating metadata about indexes so that 
they can track when an index could/should/must be rebuilt? Some kind of 
"versioned tool chain info" for the index. If analyzers and filters can 
change output then it needs to be tracked.

-- DM


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