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From Michael Busch <>
Subject Re: Flexible index format / Payloads Cont'd
Date Wed, 05 Jul 2006 11:23:44 GMT
Doug Cutting wrote:
> Marvin Humphrey wrote:
>> IMO, this should wait.  It's going to be freakishly difficult to get 
>> this stuff to work and maintain the commitments that Doug has laid 
>> out for backwards compatibility.
> Perhaps we can implement an all-new index format, in a new package.  
> An implementation of IndexReader can be provided to integrate with 
> existing search code.  And the ability to add an IndexReader to an 
> index can be provided to upgrade existing indexes to the new format.  
> So the new code would not need to be able to process an old index: the 
> old code can continue to do that.  Does that make sense?  Is that 
> "freakishly difficult"?  We'll need the ability to sniff a directory 
> and tell which version of index it contains, but that should not be 
> too hard.
> Doug
+1. I agree that this approach would make it much easier to develop a 
new index format without the commitment of being backward-compatible. I 
would like to help working on a new index format. Who else is going to 
work on it?

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