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From Mike Klaas <>
Subject Re: [jira] Commented: (SOLR-139) Support updateable/modifiable documents
Date Sat, 14 Jul 2007 00:48:06 GMT

On 13-Jul-07, at 1:53 PM, Yonik Seeley (JIRA) wrote:

>>> ... ParallelReader, where some fields are in one sub-index ...
>> the processor would ask the updateHandler for the existing  
>> document - the updateHandler deals with
>> getting it to/from the right place.
> The big reason you would use ParallelReader is to avoid touching  
> the less-modified/bigger fields in one index when changing some of  
> the other fields in the other index.

I've pondered this a few times: it could be a huge win for  
highlighting apps, which can be stored-field-heavy.

However, I wonder if there is something that I am missing: PR  
requires perfect synchro of lucene doc ids, no?  If you update fields  
for a doc in one index, need not you (re-)store the fields in all  
other indices too, to keep the doc ids in sync?


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