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|
BEGIN;
BEGIN
SET client_min_messages TO NOTICE;
SET
/* :file: This file is part of the pgRouting project.
:copyright: Copyright (c) 2017-2026 pgRouting developers
:license: Creative Commons Attribution-Share Alike 3.0 https://creativecommons.org/licenses/by-sa/3.0 */
UPDATE edges SET id = id * 100, source = 1000 * source, target = 1000 * target;
UPDATE 18
UPDATE vertices SET id = id * 1000;
UPDATE 17
SELECT id, source, target, cost, reverse_cost FROM edges;
id | source | target | cost | reverse_cost
------+--------+--------+------+--------------
600 | 1000 | 3000 | 1 | 1
700 | 3000 | 7000 | 1 | 1
400 | 6000 | 7000 | 1 | 1
500 | 10000 | 11000 | 1 | -1
800 | 7000 | 11000 | 1 | 1
1200 | 8000 | 12000 | 1 | -1
1100 | 11000 | 12000 | 1 | -1
1000 | 7000 | 8000 | 1 | 1
1700 | 2000 | 4000 | 1 | 1
1400 | 8000 | 9000 | 1 | 1
1800 | 13000 | 14000 | 1 | 1
1300 | 12000 | 17000 | 1 | -1
1500 | 16000 | 17000 | 1 | 1
1600 | 15000 | 16000 | 1 | 1
900 | 11000 | 16000 | 1 | 1
300 | 10000 | 15000 | -1 | 1
100 | 5000 | 6000 | 1 | 1
200 | 6000 | 10000 | -1 | 1
(18 rows)
SELECT id FROM vertices;
id
-------
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
11000
12000
13000
14000
15000
16000
17000
(17 rows)
SELECT * FROM pgr_lineGraphFull(
$$SELECT id, source, target, cost FROM edges WHERE id = 1$$
);
NOTICE: No edges found
HINT: SELECT id, source, target, cost FROM edges WHERE id = 1
seq | source | target | cost | edge
-----+--------+--------+------+------
(0 rows)
SELECT * FROM pgr_lineGraphFull(
$$SELECT id, source, target, cost, reverse_cost
FROM edges
WHERE id = 200$$
);
seq | source | target | cost | edge
-----+--------+--------+------+------
1 | 10000 | 6000 | 1 | -200
(1 row)
SELECT * FROM pgr_lineGraphFull(
$$SELECT id, source, target, cost, reverse_cost
FROM edges
WHERE id = 1100$$
);
seq | source | target | cost | edge
-----+--------+--------+------+------
1 | 11000 | 12000 | 1 | 1100
(1 row)
SELECT * FROM pgr_lineGraphFull(
$$SELECT id, source, target, cost, reverse_cost
FROM edges
WHERE id = 100$$
);
seq | source | target | cost | edge
-----+--------+--------+------+------
1 | -1 | 6000 | 1 | 100
2 | 5000 | -1 | 0 | 0
3 | -2 | 5000 | 1 | -100
4 | 6000 | -2 | 0 | 0
(4 rows)
SELECT * FROM pgr_lineGraphFull($$
SELECT id AS id, target, source, reverse_cost AS cost FROM edges WHERE id = 100
UNION
SELECT id, source, target, cost FROM edges WHERE id = 100
$$
);
seq | source | target | cost | edge
-----+--------+--------+------+------
1 | 6000 | 6000 | 1 | 100
2 | 6000 | 5000 | 1 | 100
3 | 5000 | 6000 | 1 | 100
4 | 5000 | 5000 | 1 | 100
(4 rows)
SELECT * FROM pgr_lineGraphFull($$
SELECT id, target, source, reverse_cost AS cost FROM edges WHERE id = 100
UNION
SELECT -id AS id, source, target, cost FROM edges WHERE id = 100
$$
);
seq | source | target | cost | edge
-----+--------+--------+------+------
1 | -1 | 5000 | 1 | -100
2 | 6000 | -1 | 0 | 0
3 | -2 | 6000 | 1 | 100
4 | 5000 | -2 | 0 | 0
(4 rows)
SELECT * FROM pgr_lineGraphFull(
$$SELECT id, source, target, cost, reverse_cost
FROM edges
WHERE id IN (200, 300)$$
);
seq | source | target | cost | edge
-----+--------+--------+------+------
1 | -1 | 6000 | 1 | -200
2 | 10000 | -1 | 0 | 0
3 | 15000 | 10000 | 1 | -300
(3 rows)
SELECT * FROM pgr_lineGraphFull(
$$SELECT id * 100 AS id, source * 1000 AS source, target * 1000 AS target,
cost, reverse_cost
FROM edges
WHERE id in (600, 700)$$
);
seq | source | target | cost | edge
-----+---------+---------+------+--------
1 | -1 | 3000000 | 1 | 60000
2 | 1000000 | -1 | 0 | 0
3 | -2 | 1000000 | 1 | -60000
4 | -3 | 7000000 | 1 | 70000
5 | 3000000 | -2 | 0 | 0
6 | 3000000 | -3 | 0 | 0
7 | -4 | -2 | 0 | 0
8 | -4 | -3 | 0 | 0
9 | -5 | -4 | 1 | -70000
10 | 7000000 | -5 | 0 | 0
(10 rows)
SELECT * FROM pgr_lineGraphFull(
$$SELECT id * 100 AS id, source * 1000 AS source, target * 1000 AS target,
cost, reverse_cost
FROM edges
where id in (500, 900, 1100)$$
);
seq | source | target | cost | edge
-----+----------+----------+------+--------
1 | 10000000 | 11000000 | 1 | 50000
2 | -1 | 12000000 | 1 | 110000
3 | -2 | 16000000 | 1 | 90000
4 | 11000000 | -1 | 0 | 0
5 | 11000000 | -2 | 0 | 0
6 | -3 | -1 | 0 | 0
7 | -3 | -2 | 0 | 0
8 | -4 | -3 | 1 | -90000
9 | 16000000 | -4 | 0 | 0
(9 rows)
ROLLBACK;
ROLLBACK
|
