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56 lines
1.6 KiB
Plaintext
56 lines
1.6 KiB
Plaintext
This is a B-Tree implementation using GiST that supports the int2, int4,
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int8, float4, float8 timestamp with/without time zone, time
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with/without time zone, date, interval, oid, money, macaddr, char,
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varchar/text, bytea, numeric, bit, varbit and inet/cidr types.
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All work was done by Teodor Sigaev (teodor@stack.net) , Oleg Bartunov
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(oleg@sai.msu.su), Janko Richter (jankorichter@yahoo.de).
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See http://www.sai.msu.su/~megera/postgres/gist for additional
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information.
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NEWS:
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Apr 17, 2004 - Performance optimizing
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Jan 21, 2004 - add support for bytea, numeric, bit, varbit, inet/cidr
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Jan 17, 2004 - Reorganizing code and add support for char, varchar/text
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Jan 10, 2004 - btree_gist now support oid , timestamp with time zone ,
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time with and without time zone, date , interval
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money, macaddr
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Feb 5, 2003 - btree_gist now support int2, int8, float4, float8
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NOTICE:
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This version will only work with PostgreSQL version 7.4 and above
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because of changes in the system catalogs and the function call
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interface.
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If you want to index varchar attributes, you have to index using
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the function text(<varchar>):
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Example:
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CREATE TABLE test ( a varchar(23) );
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CREATE INDEX testidx ON test USING GIST ( text(a) );
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INSTALLATION:
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gmake
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gmake install
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-- load functions
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psql <database> < btree_gist.sql
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REGRESSION TEST:
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gmake installcheck
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EXAMPLE USAGE:
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create table test (a int4);
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-- create index
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create index testidx on test using gist (a);
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-- query
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select * from test where a < 10;
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