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New contrib module for BTREE emulation in GiST.
From Oleg Bartunov and Teodor Sigaev.
This commit is contained in:
Tom Lane
263
contrib/btree_gist/btree_gist.sql.in
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263
contrib/btree_gist/btree_gist.sql.in
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begin transaction;
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-- create type of int4 key
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CREATE FUNCTION int4key_in(opaque)
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RETURNS opaque
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE FUNCTION int4key_out(opaque)
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RETURNS opaque
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE TYPE int4key (
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internallength = 8,
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input = int4key_in,
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output = int4key_out
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);
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--
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--
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--
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-- int4 ops
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--
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--
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--
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-- define the GiST support methods
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create function gint4_consistent(opaque,int4,int2) returns bool as 'MODULE_PATHNAME' language 'C';
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create function gint4_compress(opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
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create function btree_decompress(opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
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create function gint4_penalty(opaque,opaque,opaque) returns opaque as 'MODULE_PATHNAME' language 'C' with(isstrict);
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create function gint4_picksplit(opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
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create function gint4_union(bytea, opaque) returns int4 as 'MODULE_PATHNAME' language 'C';
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create function gint4_same(opaque, opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
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-- add a new opclass
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INSERT INTO pg_opclass (opcamid, opcname, opcintype, opckeytype, opcdefault)
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SELECT pg_am.oid, 'gist_int4_ops', pg_type.oid, pg_key.oid, true
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FROM pg_type, pg_am, pg_type pg_key
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WHERE pg_type.typname = 'int4' and
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pg_key.typname = 'int4key' and
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pg_am.amname='gist';
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SELECT o.oid AS opoid, o.oprname
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INTO TABLE int_ops_tmp
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FROM pg_operator o, pg_type t
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WHERE o.oprleft = t.oid and o.oprright = t.oid
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and t.typname = 'int4';
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-- get the comparators for int4es and store them in a tmp table
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INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
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SELECT opcl.oid, c.opoid, 1, 'f'
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FROM pg_opclass opcl, int_ops_tmp c
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WHERE opcname = 'gist_int4_ops'
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and c.oprname = '<';
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INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
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SELECT opcl.oid, c.opoid, 2, 'f'
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FROM pg_opclass opcl, int_ops_tmp c
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WHERE opcname = 'gist_int4_ops'
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and c.oprname = '<=';
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INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
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SELECT opcl.oid, c.opoid, 3, 'f'
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FROM pg_opclass opcl, int_ops_tmp c
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WHERE opcname = 'gist_int4_ops'
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and c.oprname = '=';
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INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
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SELECT opcl.oid, c.opoid, 4, 'f'
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FROM pg_opclass opcl, int_ops_tmp c
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WHERE opcname = 'gist_int4_ops'
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and c.oprname = '>=';
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INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
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SELECT opcl.oid, c.opoid, 5, 'f'
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FROM pg_opclass opcl, int_ops_tmp c
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WHERE opcname = 'gist_int4_ops'
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and c.oprname = '>';
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DROP table int_ops_tmp;
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-- add the entries to amproc for the support methods
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-- note the amprocnum numbers associated with each are specific!
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 1
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_int4_ops'
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and proname = 'gint4_consistent';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 2
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_int4_ops'
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and proname = 'gint4_union';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 3
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_int4_ops'
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and proname = 'gint4_compress';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 4
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_int4_ops'
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and proname = 'btree_decompress';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 5
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_int4_ops'
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and proname = 'gint4_penalty';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 6
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_int4_ops'
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and proname = 'gint4_picksplit';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 7
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_int4_ops'
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and proname = 'gint4_same';
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--
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--
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--
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-- timestamp ops
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--
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--
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--
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-- create type of timestamp key
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CREATE FUNCTION tskey_in(opaque)
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RETURNS opaque
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE FUNCTION tskey_out(opaque)
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RETURNS opaque
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE TYPE tskey (
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internallength = 16,
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input = tskey_in,
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output = tskey_out
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);
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create function gts_consistent(opaque,timestamp,int2) returns bool as 'MODULE_PATHNAME' language 'C';
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create function gts_compress(opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
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create function gts_penalty(opaque,opaque,opaque) returns opaque as 'MODULE_PATHNAME' language 'C' with(isstrict);
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create function gts_picksplit(opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
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create function gts_union(bytea, opaque) returns int4 as 'MODULE_PATHNAME' language 'C';
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create function gts_same(opaque, opaque, opaque) returns opaque as 'MODULE_PATHNAME' language 'C';
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INSERT INTO pg_opclass (opcamid, opcname, opcintype, opckeytype, opcdefault)
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SELECT pg_am.oid, 'gist_timestamp_ops', pg_type.oid, pg_key.oid, true
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FROM pg_type, pg_am, pg_type pg_key
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WHERE pg_type.typname = 'timestamp' and
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pg_key.typname = 'tskey' and
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pg_am.amname='gist';
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SELECT o.oid AS opoid, o.oprname
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INTO TABLE timestamp_ops_tmp
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FROM pg_operator o, pg_type t
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WHERE o.oprleft = t.oid and o.oprright = t.oid
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and t.typname = 'timestamp';
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INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
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SELECT opcl.oid, c.opoid, 1, 'f'
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FROM pg_opclass opcl, timestamp_ops_tmp c
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WHERE opcname = 'gist_timestamp_ops'
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and c.oprname = '<';
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INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
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SELECT opcl.oid, c.opoid, 2, 'f'
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FROM pg_opclass opcl, timestamp_ops_tmp c
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WHERE opcname = 'gist_timestamp_ops'
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and c.oprname = '<=';
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INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
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SELECT opcl.oid, c.opoid, 3, 'f'
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FROM pg_opclass opcl, timestamp_ops_tmp c
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WHERE opcname = 'gist_timestamp_ops'
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and c.oprname = '=';
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INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
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SELECT opcl.oid, c.opoid, 4, 'f'
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FROM pg_opclass opcl, timestamp_ops_tmp c
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WHERE opcname = 'gist_timestamp_ops'
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and c.oprname = '>=';
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INSERT INTO pg_amop (amopclaid, amopopr, amopstrategy, amopreqcheck)
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SELECT opcl.oid, c.opoid, 5, 'f'
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FROM pg_opclass opcl, timestamp_ops_tmp c
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WHERE opcname = 'gist_timestamp_ops'
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and c.oprname = '>';
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DROP table timestamp_ops_tmp;
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-- add the entries to amproc for the support methods
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-- note the amprocnum numbers associated with each are specific!
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 1
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_timestamp_ops'
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and proname = 'gts_consistent';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 2
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_timestamp_ops'
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and proname = 'gts_union';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 3
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_timestamp_ops'
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and proname = 'gts_compress';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 4
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_timestamp_ops'
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and proname = 'btree_decompress';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 5
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_timestamp_ops'
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and proname = 'gts_penalty';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 6
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_timestamp_ops'
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and proname = 'gts_picksplit';
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INSERT INTO pg_amproc (amopclaid, amproc, amprocnum)
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SELECT opcl.oid, pro.oid, 7
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FROM pg_opclass opcl, pg_proc pro
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WHERE opcname = 'gist_timestamp_ops'
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and proname = 'gts_same';
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end transaction;
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