Indexing multiple data sources

[Kelvin Chappell]

Has anyone any experience of merging indices of content both from a 
web-crawl and from a series of database queries?  This would mean using 
Nutch to index the web content and Lucene to index the database content and 
then merging the two.  The difficulty is that, as I understand it, the Nutch 
index holds references to segment indices rather than holding content 
itself.  Or is there some way in which Nutch could be used to index the 
results of database queries as well as a normal web crawl?

Any ideas or assistance gratefully received.
Kelvin
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