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From Shaya Potter <>
Subject Re: understanding the need to reindex a document
Date Mon, 22 Oct 2012 19:47:57 GMT
I can understand that (i.e. why in place wont work), but the Q would be, 
why one can't read in a document, add() or removeField() that document 
and then updateDocument() that document.

On 10/22/2012 03:43 PM, Apostolis Xekoukoulotakis wrote:
> I am not that familiar with Lucene, so my answer may be a bit off.
> Search on the internet about log structured storage. There you will find
> why rewriting an entry is better than updating an existing entry.
> Leveldb/cassandra/bigTable use it. maybe search these terms as well.
> 2012/10/22 Shaya Potter <>
>> so there are lots of Qs that are asked about wanting to modify a lucene
>> document (i.e. remove fields, add fields....) but are told that one needs
>> to reindex.
>> No one ever answers the technical Q of why this is, and I'm interested in
>> that.  presumambly because documents aren't stored as documents or even in
>> any form that could be reassembled into a document, but I'm interested in
>> what the actual answer is.
>> thanks.
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