postgresql/contrib/btree_gist/README.btree_gist

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This is B-Tree implementation using GiST for int2, int4, int8, float4, float8
timestamp types.
All work was done by Teodor Sigaev (teodor@stack.net) and Oleg Bartunov
(oleg@sai.msu.su). See http://www.sai.msu.su/~megera/postgres/gist
for additional information.
NEWS:
Feb 5, 2003 - btree_gist now support int2, int8, float4, float8 !
Thank Janko Richter <jankorichter@yahoo.de> for
contribution.
NOTICE:
This version will works only with postgresql version 7.3 and above
because of changes in interface of function calling and in system
tables.
INSTALLATION:
gmake
gmake install
-- load functions
psql <database> < btree_gist.sql
REGRESSION TEST:
gmake installcheck
EXAMPLE USAGE:
create table test (a int4);
-- create index
create index testidx on test using gist (a);
-- query
select * from test where a < 10;