On 6/8/06, Bob Arens <[EMAIL PROTECTED]> wrote:
I've been handed a legacy index containing Documents with two Fields;
one is a file ID, the other is contents of the file. The contents
field was added using UnStored. Now, we want to add fields. Oh, the
humanity!
My crazy idea - can we add new Documents to the index with the Fields
we wish to add, and duplicate file IDs? i.e. an entry for file ID Foo
would consist of two Documents,
Document X: fileID:<Foo>, contents:<unknown>
Document Y:fileID:<Foo>, title:<Bar>, url:<www.baz.com>, etc.
Bob, it sounds like ParallelIndexReader is exactly what you need.
Iterate through the old Index, and add a new Document to a new second
index for each docid. Then open a ParallelIndexReader over both, and
it looks like a unified index!
-Yonik
http://incubator.apache.org/solr Solr, the open-source Lucene search server
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