>>could you define duplicate?
That's your choice of field that you want to de-dup on.
That could be a field such as "DatabasePrimaryKey" or perhaps a field
containing an MD5 hash of document content.
The DuplicateFilter ensures only one document can exist in results for
each unique value for the choice of field.
Cheers
Mark
Erick Erickson wrote:
could you define duplicate? As far as I know, you don't
get the same (internal) doc id back more than once, so what
is a duplicate?
Best
Erick
On Mon, Jul 21, 2008 at 9:40 AM, Sebastin <[EMAIL PROTECTED]> wrote:
at the time search , while querying the data
markrmiller wrote:
Sebastin wrote:
Hi All,
Is there any possibility to avoid duplicate records in lucene 2.3.1?
I don't believe that there is a very high performance way to do this.
You are basically going to have to query the index for an id before
adding a new doc. The best way I can think of off the top of my head is
to batch - first check that ids in the batch are unique, then check all
ids in the batch against the IndexReader, then add the ones that are not
dupes. Of course all of your docs would have to be added through this
single choke point so that you knew other threads had not added that id
after the first thread had looked but before it added the doc.
I think Mark H has you covered if getting the dupes out after are okay.
- Mark
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