pgr_vrpOneDepot - Experimental

Warning

Possible server crash

  • These functions might create a server crash

Warning

Experimental functions

  • They are not officially of the current release.

  • They likely will not be officially be part of the next release:

    • The functions might not make use of ANY-INTEGER and ANY-NUMERICAL

    • Name might change.

    • Signature might change.

    • Functionality might change.

    • pgTap tests might be missing.

    • Might need c/c++ coding.

    • May lack documentation.

    • Documentation if any might need to be rewritten.

    • Documentation examples might need to be automatically generated.

    • Might need a lot of feedback from the comunity.

    • Might depend on a proposed function of pgRouting

    • Might depend on a deprecated function of pgRouting

No documentation available

Availability

  • Version 2.1.0

    • New experimental function

  • TBD

Description

  • TBD

Signatures

  • TBD

Parameters

  • TBD

Inner Queries

  • TBD

Result columns

  • TBD

Additional Example:

BEGIN;
BEGIN
SET client_min_messages TO NOTICE;
SET
SELECT * FROM pgr_vrpOneDepot(
    'SELECT * FROM solomon_100_RC_101',
    'SELECT * FROM vrp_vehicles',
    'SELECT * FROM vrp_distance',
    1);
 oid | opos | vid | tarrival | tdepart
-----+------+-----+----------+---------
  -1 |    1 |   1 |        0 |       0
   7 |    2 |   1 |        0 |       0
   9 |    3 |   1 |        0 |       0
   8 |    4 |   1 |        0 |       0
   6 |    5 |   1 |        0 |       0
   5 |    6 |   1 |        0 |       0
   4 |    7 |   1 |        0 |       0
   2 |    8 |   1 |        0 |       0
   6 |    9 |   1 |       40 |      51
   8 |   10 |   1 |       62 |      89
   9 |   11 |   1 |       94 |     104
   7 |   12 |   1 |      110 |     120
   4 |   13 |   1 |      131 |     141
   2 |   14 |   1 |      144 |     155
   5 |   15 |   1 |      162 |     172
  -1 |   16 |   1 |      208 |     208
  -1 |    1 |   2 |        0 |       0
  10 |    2 |   2 |        0 |       0
  11 |    3 |   2 |        0 |       0
  10 |    4 |   2 |       34 |     101
  11 |    5 |   2 |      106 |     129
  -1 |    6 |   2 |      161 |     161
  -1 |    1 |   3 |        0 |       0
   3 |    2 |   3 |        0 |       0
   3 |    3 |   3 |       31 |      60
  -1 |    4 |   3 |       91 |      91
  -1 |    0 |   0 |       -1 |     460
(27 rows)

ROLLBACK;
ROLLBACK

Data


DROP TABLE IF EXISTS solomon_100_RC_101 cascade;
CREATE TABLE solomon_100_RC_101 (
    id integer NOT NULL PRIMARY KEY,
    order_unit integer,
    open_time integer,
    close_time integer,
    service_time integer,
    x float8,
    y float8
);

INSERT INTO solomon_100_RC_101 (id, x, y, order_unit, open_time, close_time, service_time) VALUES
(1, 40.000000, 50.000000, 0, 0, 240, 0),
(2, 25.000000, 85.000000, 20, 145, 175, 10),
(3, 22.000000, 75.000000, 30, 50, 80, 10),
(4, 22.000000, 85.000000, 10, 109, 139, 10),
(5, 20.000000, 80.000000, 40, 141, 171, 10),
(6, 20.000000, 85.000000, 20, 41, 71, 10),
(7, 18.000000, 75.000000, 20, 95, 125, 10),
(8, 15.000000, 75.000000, 20, 79, 109, 10),
(9, 15.000000, 80.000000, 10, 91, 121, 10),
(10, 10.000000, 35.000000, 20, 91, 121, 10),
(11, 10.000000, 40.000000, 30, 119, 149, 10);

DROP TABLE IF EXISTS vrp_vehicles cascade;
CREATE TABLE vrp_vehicles (
    vehicle_id integer not null primary key,
    capacity integer,
    case_no integer
);

INSERT INTO vrp_vehicles (vehicle_id, capacity, case_no) VALUES
(1, 200, 5),
(2, 200, 5),
(3, 200, 5);

DROP TABLE IF EXISTS vrp_distance cascade;
WITH
the_matrix_info AS (
    SELECT A.id AS src_id, B.id AS dest_id, sqrt( (a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y)) AS cost
    FROM solomon_100_rc_101 AS A, solomon_100_rc_101 AS B WHERE A.id != B.id
)
SELECT src_id, dest_id, cost, cost AS distance, cost AS traveltime
INTO vrp_distance
FROM the_matrix_info;

See Also

Indices and tables