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|
BEGIN;
BEGIN
SET client_min_messages TO NOTICE;
SET
/* -- q1 */
SELECT * FROM pgr_binaryBreadthFirstSearch(
'SELECT id, source, target, cost, reverse_cost from edges',
6, 10, true);
seq | path_seq | node | edge | cost | agg_cost
-----+----------+------+------+------+----------
1 | 1 | 6 | 4 | 1 | 0
2 | 2 | 7 | 8 | 1 | 1
3 | 3 | 11 | 9 | 1 | 2
4 | 4 | 16 | 16 | 1 | 3
5 | 5 | 15 | 3 | 1 | 4
6 | 6 | 10 | -1 | 0 | 5
(6 rows)
/* -- q2 */
SELECT * FROM pgr_binaryBreadthFirstSearch(
'SELECT id, source, target, cost, reverse_cost from edges',
6, ARRAY[10, 17]);
seq | path_seq | end_vid | node | edge | cost | agg_cost
-----+----------+---------+------+------+------+----------
1 | 1 | 10 | 6 | 4 | 1 | 0
2 | 2 | 10 | 7 | 8 | 1 | 1
3 | 3 | 10 | 11 | 9 | 1 | 2
4 | 4 | 10 | 16 | 16 | 1 | 3
5 | 5 | 10 | 15 | 3 | 1 | 4
6 | 6 | 10 | 10 | -1 | 0 | 5
7 | 1 | 17 | 6 | 4 | 1 | 0
8 | 2 | 17 | 7 | 8 | 1 | 1
9 | 3 | 17 | 11 | 11 | 1 | 2
10 | 4 | 17 | 12 | 13 | 1 | 3
11 | 5 | 17 | 17 | -1 | 0 | 4
(11 rows)
/* -- q3 */
SELECT * FROM pgr_binaryBreadthFirstSearch(
'SELECT id, source, target, cost, reverse_cost from edges',
ARRAY[6, 1], 17);
seq | path_seq | start_vid | node | edge | cost | agg_cost
-----+----------+-----------+------+------+------+----------
1 | 1 | 1 | 1 | 6 | 1 | 0
2 | 2 | 1 | 3 | 7 | 1 | 1
3 | 3 | 1 | 7 | 8 | 1 | 2
4 | 4 | 1 | 11 | 11 | 1 | 3
5 | 5 | 1 | 12 | 13 | 1 | 4
6 | 6 | 1 | 17 | -1 | 0 | 5
7 | 1 | 6 | 6 | 4 | 1 | 0
8 | 2 | 6 | 7 | 8 | 1 | 1
9 | 3 | 6 | 11 | 11 | 1 | 2
10 | 4 | 6 | 12 | 13 | 1 | 3
11 | 5 | 6 | 17 | -1 | 0 | 4
(11 rows)
/* -- q4 */
SELECT * FROM pgr_binaryBreadthFirstSearch(
'SELECT id, source, target, cost, reverse_cost from edges',
ARRAY[6, 1], ARRAY[10, 17],
directed => false);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 1 | 10 | 1 | 6 | 1 | 0
2 | 2 | 1 | 10 | 3 | 7 | 1 | 1
3 | 3 | 1 | 10 | 7 | 4 | 1 | 2
4 | 4 | 1 | 10 | 6 | 2 | 1 | 3
5 | 5 | 1 | 10 | 10 | -1 | 0 | 4
6 | 1 | 1 | 17 | 1 | 6 | 1 | 0
7 | 2 | 1 | 17 | 3 | 7 | 1 | 1
8 | 3 | 1 | 17 | 7 | 8 | 1 | 2
9 | 4 | 1 | 17 | 11 | 11 | 1 | 3
10 | 5 | 1 | 17 | 12 | 13 | 1 | 4
11 | 6 | 1 | 17 | 17 | -1 | 0 | 5
12 | 1 | 6 | 10 | 6 | 2 | 1 | 0
13 | 2 | 6 | 10 | 10 | -1 | 0 | 1
14 | 1 | 6 | 17 | 6 | 4 | 1 | 0
15 | 2 | 6 | 17 | 7 | 8 | 1 | 1
16 | 3 | 6 | 17 | 11 | 11 | 1 | 2
17 | 4 | 6 | 17 | 12 | 13 | 1 | 3
18 | 5 | 6 | 17 | 17 | -1 | 0 | 4
(18 rows)
/* -- q5 */
SELECT source, target FROM combinations;
source | target
--------+--------
5 | 6
5 | 10
6 | 5
6 | 15
6 | 14
(5 rows)
/* -- q51 */
SELECT * FROM pgr_binaryBreadthFirstSearch(
'SELECT id, source, target, cost, reverse_cost FROM edges',
'SELECT source, target FROM combinations',
false);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 5 | 6 | 5 | 1 | 1 | 0
2 | 2 | 5 | 6 | 6 | -1 | 0 | 1
3 | 1 | 5 | 10 | 5 | 1 | 1 | 0
4 | 2 | 5 | 10 | 6 | 2 | 1 | 1
5 | 3 | 5 | 10 | 10 | -1 | 0 | 2
6 | 1 | 6 | 5 | 6 | 1 | 1 | 0
7 | 2 | 6 | 5 | 5 | -1 | 0 | 1
8 | 1 | 6 | 15 | 6 | 2 | 1 | 0
9 | 2 | 6 | 15 | 10 | 3 | 1 | 1
10 | 3 | 6 | 15 | 15 | -1 | 0 | 2
(10 rows)
/* -- q6 */
SELECT * FROM pgr_binaryBreadthFirstSearch(
'SELECT id, source, target, cost, reverse_cost FROM edges',
'SELECT * FROM (VALUES (6, 10), (6, 7), (12, 10)) AS combinations (source, target)');
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 6 | 7 | 6 | 4 | 1 | 0
2 | 2 | 6 | 7 | 7 | -1 | 0 | 1
3 | 1 | 6 | 10 | 6 | 4 | 1 | 0
4 | 2 | 6 | 10 | 7 | 8 | 1 | 1
5 | 3 | 6 | 10 | 11 | 9 | 1 | 2
6 | 4 | 6 | 10 | 16 | 16 | 1 | 3
7 | 5 | 6 | 10 | 15 | 3 | 1 | 4
8 | 6 | 6 | 10 | 10 | -1 | 0 | 5
9 | 1 | 12 | 10 | 12 | 13 | 1 | 0
10 | 2 | 12 | 10 | 17 | 15 | 1 | 1
11 | 3 | 12 | 10 | 16 | 16 | 1 | 2
12 | 4 | 12 | 10 | 15 | 3 | 1 | 3
13 | 5 | 12 | 10 | 10 | -1 | 0 | 4
(13 rows)
/* -- q7 */
ROLLBACK;
ROLLBACK
|
