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Flexible indexing is one of the new features in Lucene's next major
release, 4.0. It includes big changes to a number of places in Lucene: a
new, higher performance postings iteration API; terms as arbitrary
opaque bytes (not chars); direct visibility and control of deleted
documents; a low-level, pluggable codec API giving applications full
control over the postings data. Several interesting codecs have already
been created, including the default "standard" codec, which enables
sizable RAM reduction for searchers, and a "pulsing" codec that inlines
postings data directly into the terms dictionary, which provides a solid
performance boost for primary key fields. In this talk Michael McCandless presents
an overview of all of these exciting changes, as well as several
concrete, real-world examples of how applications can tap into these new
Michael McCandless, IBM at Lucene Revolution: "Fun With Flex" from Lucene Revolution on Vimeo.
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