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From Michael McCandless <>
Subject Re: Lucene 2.9
Date Mon, 09 Mar 2009 10:32:55 GMT

Allahbaksh Mohammedali Asadullah wrote:

> When is Lucene 2.9 due? I am eagerly waiting for the new lucene to  
> come.

There have been some discussions on java-dev, but there's no clear  
consensus/date yet.  We do have quite a few Jira issues marked as 2.9  
at this point, which we need to make progress on or push out:

> As I compared Lucene with Minion I think Minion offers very rich  
> capabilities like easier range query etc.

Can you provide some detail on what's different about range queries,  
or any other differences?  Is it the lack of numeric operators (<, <=,  
 >, >=, !=) via QueryParser? Minion definitely looks like a neat  
search engine.

> Is there any plans to have simpler queries for Numbers and Data?

With the recent addition of TrieRangeQuery (in 2.9), I think Lucene's  
range querying is actually very strong, though you'd have to subclass  
QueryParser and override getRangeQuery to have it create TrieRangeQuery.


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