Subject: Re: [htdig3-dev] Compression, latest snapshot
From: Gilles Detillieux (grdetil@scrc.umanitoba.ca)
Date: Wed Nov 15 2000 - 14:39:36 PST
According to Geoff Hutchison:
> At 10:21 AM +0100 11/14/00, J. op den Brouw wrote:
> >1. Is is possible to distill the compression factor from the database file
> > or do you need to know it in advance?
>
> I'm not sure what you mean. The word database compression is on by
> default (and has no "levels"), but the compression_factor attribute
> affects the compression used on excerpts. There is no easy way (at
> least right now) for this to be changed on an existing database--it
> would need to be rebuilt.
I think what he means is what happens if you change the compression_factor
without rebuilding the database. Will the decompression code be able to
make sense of the compressed data even though it was compressed using a
different factor than the one now selected. My understanding was that
this would work properly, as long as you didn't set it to 0, which would
turn off decompression altogether. I haven't tested this myself, though.
-- Gilles R. Detillieux E-mail: <grdetil@scrc.umanitoba.ca> Spinal Cord Research Centre WWW: http://www.scrc.umanitoba.ca/~grdetil Dept. Physiology, U. of Manitoba Phone: (204)789-3766 Winnipeg, MB R3E 3J7 (Canada) Fax: (204)789-3930------------------------------------ To unsubscribe from the htdig3-dev mailing list, send a message to htdig3-dev-unsubscribe@htdig.org You will receive a message to confirm this.
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