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Implement CREATE/DROP OPERATOR CLASS. Work still remains: need more
documentation (xindex.sgml should be rewritten), need to teach pg_dump about it, need to update contrib modules that currently build pg_opclass entries by hand. Original patch by Bill Studenmund, grammar adjustments and general update for 7.3 by Tom Lane.
This commit is contained in:
Tom Lane
@ -2,6 +2,10 @@
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--
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BEGIN TRANSACTION;
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-- Adjust this setting to control where the operators, functions, and
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-- opclasses get created.
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SET search_path = public;
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-- Query type
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CREATE FUNCTION bqarr_in(opaque)
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RETURNS opaque
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@ -143,137 +147,22 @@ CREATE FUNCTION g_int_same(_int4, _int4, opaque) RETURNS opaque
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AS 'MODULE_PATHNAME' LANGUAGE 'c';
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-- register the default opclass for indexing
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INSERT INTO pg_opclass (opcamid, opcname, opcnamespace, opcowner, opcintype, opcdefault, opckeytype)
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VALUES (
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(SELECT oid FROM pg_am WHERE amname = 'gist'),
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'gist__int_ops',
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(SELECT oid FROM pg_namespace WHERE nspname = 'pg_catalog'),
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1, -- UID of superuser is hardwired to 1 as of PG 7.3
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(SELECT oid FROM pg_type WHERE typname = '_int4'),
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true,
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0);
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-- Create the operator class for indexing
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-- get the comparators for _intments and store them in a tmp table
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SELECT o.oid AS opoid, o.oprname
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INTO TEMP TABLE _int_ops_tmp
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FROM pg_operator o, pg_type t, pg_type tq
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WHERE o.oprleft = t.oid and ( o.oprright = t.oid or o.oprright=tq.oid )
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and t.typname = '_int4'
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and tq.typname='query_int';
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-- make sure we have the right operators
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-- SELECT * from _int_ops_tmp;
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-- using the tmp table, generate the amop entries
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-- _int_overlap
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INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
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SELECT opcl.oid, 3, false, c.opoid
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FROM pg_opclass opcl, _int_ops_tmp c
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and c.oprname = '&&';
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-- _int_same
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INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
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SELECT opcl.oid, 6, true, c.opoid
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FROM pg_opclass opcl, _int_ops_tmp c
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and c.oprname = '=';
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-- _int_contains
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INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
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SELECT opcl.oid, 7, false, c.opoid
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FROM pg_opclass opcl, _int_ops_tmp c
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and c.oprname = '@';
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-- _int_contained
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INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
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SELECT opcl.oid, 8, false, c.opoid
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FROM pg_opclass opcl, _int_ops_tmp c
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and c.oprname = '~';
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--boolean search
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INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
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SELECT opcl.oid, 20, false, c.opoid
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FROM pg_opclass opcl, _int_ops_tmp c
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_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, amprocnum, amproc)
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SELECT opcl.oid, 1, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and proname = 'g_int_consistent';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 2, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and proname = 'g_int_union';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 3, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and proname = 'g_int_compress';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 4, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and proname = 'g_int_decompress';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 5, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and proname = 'g_int_penalty';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 6, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and proname = 'g_int_picksplit';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 7, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__int_ops'
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and proname = 'g_int_same';
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CREATE OPERATOR CLASS gist__int_ops
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DEFAULT FOR TYPE _int4 USING gist AS
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OPERATOR 3 &&,
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OPERATOR 6 = RECHECK,
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OPERATOR 7 @,
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OPERATOR 8 ~,
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OPERATOR 20 @@ (_int4, query_int),
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FUNCTION 1 g_int_consistent (opaque, _int4, int4),
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FUNCTION 2 g_int_union (bytea, opaque),
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FUNCTION 3 g_int_compress (opaque),
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FUNCTION 4 g_int_decompress (opaque),
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FUNCTION 5 g_int_penalty (opaque, opaque, opaque),
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FUNCTION 6 g_int_picksplit (opaque, opaque),
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FUNCTION 7 g_int_same (_int4, _int4, opaque);
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---------------------------------------------
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@ -302,136 +191,20 @@ CREATE FUNCTION g_intbig_same(_int4, _int4, opaque) RETURNS opaque
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AS 'MODULE_PATHNAME' LANGUAGE 'c';
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-- register the opclass for indexing (not as default)
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INSERT INTO pg_opclass (opcamid, opcname, opcnamespace, opcowner, opcintype, opcdefault, opckeytype)
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VALUES (
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(SELECT oid FROM pg_am WHERE amname = 'gist'),
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'gist__intbig_ops',
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(SELECT oid FROM pg_namespace WHERE nspname = 'pg_catalog'),
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1, -- UID of superuser is hardwired to 1 as of PG 7.3
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(SELECT oid FROM pg_type WHERE typname = '_int4'),
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false,
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0);
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-- get the comparators for _intments and store them in a tmp table
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SELECT o.oid AS opoid, o.oprname
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INTO TEMP TABLE _int_ops_tmp
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FROM pg_operator o, pg_type t, pg_type tq
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WHERE o.oprleft = t.oid and ( o.oprright = t.oid or o.oprright=tq.oid )
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and t.typname = '_int4'
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and tq.typname='query_int';
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-- make sure we have the right operators
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-- SELECT * from _int_ops_tmp;
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-- using the tmp table, generate the amop entries
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-- note: these operators are all lossy
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-- _int_overlap
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INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
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SELECT opcl.oid, 3, true, c.opoid
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FROM pg_opclass opcl, _int_ops_tmp c
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and c.oprname = '&&';
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-- _int_contains
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INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
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SELECT opcl.oid, 7, true, c.opoid
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FROM pg_opclass opcl, _int_ops_tmp c
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and c.oprname = '@';
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-- _int_contained
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INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
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SELECT opcl.oid, 8, true, c.opoid
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FROM pg_opclass opcl, _int_ops_tmp c
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and c.oprname = '~';
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-- _int_same
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INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
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SELECT opcl.oid, 6, true, c.opoid
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FROM pg_opclass opcl, _int_ops_tmp c
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and c.oprname = '=';
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--boolean search
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INSERT INTO pg_amop (amopclaid, amopstrategy, amopreqcheck, amopopr)
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SELECT opcl.oid, 20, true, c.opoid
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FROM pg_opclass opcl, _int_ops_tmp c
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_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, amprocnum, amproc)
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SELECT opcl.oid, 1, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and proname = 'g_intbig_consistent';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 2, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and proname = 'g_intbig_union';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 3, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and proname = 'g_intbig_compress';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 4, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and proname = 'g_intbig_decompress';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 5, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and proname = 'g_intbig_penalty';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 6, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and proname = 'g_intbig_picksplit';
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INSERT INTO pg_amproc (amopclaid, amprocnum, amproc)
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SELECT opcl.oid, 7, pro.oid
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FROM pg_opclass opcl, pg_proc pro
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WHERE
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opcamid = (SELECT oid FROM pg_am WHERE amname = 'gist')
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and opcname = 'gist__intbig_ops'
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and proname = 'g_intbig_same';
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CREATE OPERATOR CLASS gist__intbig_ops
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FOR TYPE _int4 USING gist AS
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OPERATOR 3 && RECHECK,
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OPERATOR 6 = RECHECK,
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OPERATOR 7 @ RECHECK,
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OPERATOR 8 ~ RECHECK,
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OPERATOR 20 @@ (_int4, query_int) RECHECK,
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FUNCTION 1 g_intbig_consistent (opaque, _int4, int4),
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FUNCTION 2 g_intbig_union (bytea, opaque),
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FUNCTION 3 g_intbig_compress (opaque),
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FUNCTION 4 g_intbig_decompress (opaque),
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FUNCTION 5 g_intbig_penalty (opaque, opaque, opaque),
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FUNCTION 6 g_intbig_picksplit (opaque, opaque),
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FUNCTION 7 g_intbig_same (_int4, _int4, opaque);
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END TRANSACTION;
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