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From "Chong, Herb" <>
Subject RE: SQLDirectory
Date Fri, 06 Feb 2004 21:15:00 GMT
there are a couple of people who participated in TREC that used a relational database to directly
store the postings list for each term. from what i recall, search performance in terms of
elapsed time was reasonable, not particularly fast nor slow. i gather that each term's posting
list was an individual BLOB in the database. the term string was used as the index column.
i believe the group used stemming.


-----Original Message-----
From: Doug Cutting []
Sent: Friday, February 06, 2004 4:11 PM
To: Lucene Users List
Subject: Re: SQLDirectory

Also, in some environments, the only supported access to reliable, 
redundant, shared data might be through a database.  An SQLDirectory 
would enable one to deploy a Lucene-based application in such an 
environment without having to, e.g., get permission from operations to 
enable NFS.


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