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From Dmitry Kan <>
Subject OOV queries
Date Thu, 05 Jun 2014 12:47:20 GMT

Solr is good at caching: even if first "cold" query takes longer time, the
subsequent one is much quicker, given that it shares the fq's of the first

This is more like an idea question:

what about the out-of-vocabulary (OOV) queries? According to my quick
measurements, they take same amount of time when repeated and return

Most of such queries are usually user typos, so I could imagine
implementing a round-trip to the server with an auto-corrected query, if
the first query returned 0 hits. This does not solve the underlining slow 0
hits query though.

Would it make sense to implement an OOV cache to speed things up? Does one
exist already in Lucene / Solr?

Dmitry Kan

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