Ted Mielczarek a écrit :
> There is a note in the source code that points to a test that David Humphrey
> did with respect to full text search; the current approach was an order of
> magnitude faster than glimpse (IIRC).
This is documented here:http://vocamus.net/dave/?p=138
Thanks, I follow Dave's blog, but apparently did not back in 2008.
However "the explanation is back there in some old blog post" is not a
great documentation format :-)
I'm not really satisfied with what he wrote in this blog, because I
would like to know *why* grep on a concatenated file performs better
than glimpse, in order to guess when it will stop being true.
And indeed in his test, 0.335s to find the matches was good but today
Lanedo gets 9.1s, not 0.335s, so either the good result was too easily
destroyed in a different setup, or he underestimated the future
consequences of source code size increase, which glimpse might have
handled better.
But in any case "glimpse has a bad licence, and glimpse performs
weirdly/badly in some cases" is a good enough reason to dump it in favor
of FTS inside sqllite.
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