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If you don't care where in the text you're
searching (whether it's in the title or the excerpt), and you're never going to
be searching for the strings 'title' or 'excerpt', then you could just use
grep. XML databases and search engines aren't necessary, nor would they be
as fast, most likely, unless they indexed the documents in some way (Patricia
tree or inverted file) based on the text content. You'd be more likely to
find this in a text indexing system not specialized to XML.
Jeff
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