On Mon, 7 Feb 2005, Larry Rosenman wrote:
Oleg Bartunov wrote:Read http://www.sai.msu.su/~megera/postgres/gist/pg_trgm/README.pg_trgm
Oleg On Mon, 7 Feb 2005, Martijn van Oosterhout wrote:Would you have a suggestion to index the following query:
SELECT domain,message,'1' as truth FROM blacklist WHERE somedomain ~* '(?:.+\.|)' || domain || '\$')
The somedomain is actually a constant passed in from Exim (it's the sender's righthand Side of an E-Mail address).
I'm looking to see if the domain name is in my blacklist.
I may just be SOL, but I figured I'd ask.
Larry, I pointed you to pg_trgm module mostly following Martijn's suggestions. Now, I see you need another our module - ltree,
see http://www.sai.msu.su/~megera/postgres/gist/ltree/
for details.
Regards, Oleg _____________________________________________________________ Oleg Bartunov, sci.researcher, hostmaster of AstroNet, Sternberg Astronomical Institute, Moscow University (Russia) Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/ phone: +007(095)939-16-83, +007(095)939-23-83
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