1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
-- Create the user-defined type for the 1-D frloating point indervals (_int4)
--
BEGIN TRANSACTION;
--
-- External C-functions for R-tree methods
--
-- Comparison methods
CREATE FUNCTION _int_contains(_int4, _int4) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c';
INSERT INTO pg_description (objoid, description)
SELECT oid, 'contains'::text
FROM pg_proc
WHERE proname = '_int_contains'::name;
CREATE FUNCTION _int_contained(_int4, _int4) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c';
INSERT INTO pg_description (objoid, description)
SELECT oid, 'contained in'::text
FROM pg_proc
WHERE proname = '_int_contained'::name;
CREATE FUNCTION _int_overlap(_int4, _int4) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c';
INSERT INTO pg_description (objoid, description)
SELECT oid, 'overlaps'::text
FROM pg_proc
WHERE proname = '_int_overlap'::name;
CREATE FUNCTION _int_same(_int4, _int4) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c';
INSERT INTO pg_description (objoid, description)
SELECT oid, 'same as'::text
FROM pg_proc
WHERE proname = '_int_same'::name;
CREATE FUNCTION _int_different(_int4, _int4) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c';
INSERT INTO pg_description (objoid, description)
SELECT oid, 'different'::text
FROM pg_proc
WHERE proname = '_int_different'::name;
-- support routines for indexing
CREATE FUNCTION _int_union(_int4, _int4) RETURNS _int4
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION _int_inter(_int4, _int4) RETURNS _int4
AS 'MODULE_PATHNAME' LANGUAGE 'c';
--
-- OPERATORS
--
CREATE OPERATOR && (
LEFTARG = _int4, RIGHTARG = _int4, PROCEDURE = _int_overlap,
COMMUTATOR = '&&',
RESTRICT = contsel, JOIN = contjoinsel
);
--CREATE OPERATOR = (
-- LEFTARG = _int4, RIGHTARG = _int4, PROCEDURE = _int_same,
-- COMMUTATOR = '=', NEGATOR = '<>',
-- RESTRICT = eqsel, JOIN = eqjoinsel,
-- SORT1 = '<', SORT2 = '<'
--);
CREATE OPERATOR <> (
LEFTARG = _int4, RIGHTARG = _int4, PROCEDURE = _int_different,
COMMUTATOR = '<>', NEGATOR = '=',
RESTRICT = neqsel, JOIN = neqjoinsel
);
CREATE OPERATOR @ (
LEFTARG = _int4, RIGHTARG = _int4, PROCEDURE = _int_contains,
COMMUTATOR = '~', RESTRICT = contsel, JOIN = contjoinsel
);
CREATE OPERATOR ~ (
LEFTARG = _int4, RIGHTARG = _int4, PROCEDURE = _int_contained,
COMMUTATOR = '@', RESTRICT = contsel, JOIN = contjoinsel
);
-- define the GiST support methods
CREATE FUNCTION g_int_consistent(opaque,_int4,int4) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION g_int_compress(opaque) RETURNS opaque
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION g_int_decompress(opaque) RETURNS opaque
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION g_int_penalty(opaque,opaque,opaque) RETURNS opaque
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION g_int_picksplit(opaque, opaque) RETURNS opaque
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION g_int_union(bytea, opaque) RETURNS _int4
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION g_int_same(_int4, _int4, opaque) RETURNS opaque
AS 'MODULE_PATHNAME' LANGUAGE 'c';
-- register the default opclass for indexing
INSERT INTO pg_opclass (opcname, opcdeftype)
SELECT 'gist__int_ops', oid
FROM pg_type
WHERE typname = '_int4';
-- get the comparators for _intments and store them in a tmp table
SELECT o.oid AS opoid, o.oprname
INTO TABLE _int_ops_tmp
FROM pg_operator o, pg_type t
WHERE o.oprleft = t.oid and o.oprright = t.oid
and t.typname = '_int4';
-- make sure we have the right operators
-- SELECT * from _int_ops_tmp;
-- using the tmp table, generate the amop entries
-- _int_overlap
INSERT INTO pg_amop (amopid, amopclaid, amopopr, amopstrategy)
SELECT am.oid, opcl.oid, c.opoid, 3
FROM pg_am am, pg_opclass opcl, _int_ops_tmp c
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and c.oprname = '&&';
-- _int_same
INSERT INTO pg_amop (amopid, amopclaid, amopopr, amopstrategy)
SELECT am.oid, opcl.oid, c.opoid, 6
FROM pg_am am, pg_opclass opcl, _int_ops_tmp c
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and c.oprname = '=';
-- _int_contains
INSERT INTO pg_amop (amopid, amopclaid, amopopr, amopstrategy)
SELECT am.oid, opcl.oid, c.opoid, 7
FROM pg_am am, pg_opclass opcl, _int_ops_tmp c
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and c.oprname = '@';
-- _int_contained
INSERT INTO pg_amop (amopid, amopclaid, amopopr, amopstrategy)
SELECT am.oid, opcl.oid, c.opoid, 8
FROM pg_am am, pg_opclass opcl, _int_ops_tmp c
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and c.oprname = '~';
DROP TABLE _int_ops_tmp;
-- add the entries to amproc for the support methods
-- note the amprocnum numbers associated with each are specific!
INSERT INTO pg_amproc (amid, amopclaid, amproc, amprocnum)
SELECT am.oid, opcl.oid, pro.oid, 1
FROM pg_am am, pg_opclass opcl, pg_proc pro
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and proname = 'g_int_consistent';
INSERT INTO pg_amproc (amid, amopclaid, amproc, amprocnum)
SELECT am.oid, opcl.oid, pro.oid, 2
FROM pg_am am, pg_opclass opcl, pg_proc pro
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and proname = 'g_int_union';
INSERT INTO pg_amproc (amid, amopclaid, amproc, amprocnum)
SELECT am.oid, opcl.oid, pro.oid, 3
FROM pg_am am, pg_opclass opcl, pg_proc pro
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and proname = 'g_int_compress';
INSERT INTO pg_amproc (amid, amopclaid, amproc, amprocnum)
SELECT am.oid, opcl.oid, pro.oid, 4
FROM pg_am am, pg_opclass opcl, pg_proc pro
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and proname = 'g_int_decompress';
INSERT INTO pg_amproc (amid, amopclaid, amproc, amprocnum)
SELECT am.oid, opcl.oid, pro.oid, 5
FROM pg_am am, pg_opclass opcl, pg_proc pro
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and proname = 'g_int_penalty';
INSERT INTO pg_amproc (amid, amopclaid, amproc, amprocnum)
SELECT am.oid, opcl.oid, pro.oid, 6
FROM pg_am am, pg_opclass opcl, pg_proc pro
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and proname = 'g_int_picksplit';
INSERT INTO pg_amproc (amid, amopclaid, amproc, amprocnum)
SELECT am.oid, opcl.oid, pro.oid, 7
FROM pg_am am, pg_opclass opcl, pg_proc pro
WHERE amname = 'gist' and opcname = 'gist__int_ops'
and proname = 'g_int_same';
END TRANSACTION;
|
