迁移指南¶
多个函数的签名发生了变化，和/或已被新函数取代。
结果可能会因变化而不同。
Warning
所有已弃用的函数将在下一个主要版本 4.0.0 中被移除
函数迁移¶
pgr_aStar 迁移¶
开始从 v3.6.0
要迁移的签名：
pgr_aStar(一对一)pgr_aStar(一对多)pgr_aStar(多对一)
- 迁移前:
输出列是
(seq, path_seq, [start_vid], [end_vid], node, edge, cost, agg_cost)根据所使用的重载，
start_vid和``end_vid`` 列可能会丢失：pgr_aStar(一对一)没有start_vid和end_vid。pgr_aStar(一对多) 没有start_vid。pgr_aStar(多对一)没有end_vid。
- 迁移:
Be aware of the existence of the additional columns.
在
pgr_aStar(一对一)中start_vid包含 起始 vid 参数值。end_vid包含 结束 vid 参数值。
SELECT * FROM pgr_aStar(
$$SELECT id, source, target, cost, reverse_cost, x1, y1, x2, y2 FROM edges$$,
6, 10);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 6 | 10 | 6 | 4 | 1 | 0
2 | 2 | 6 | 10 | 7 | 8 | 1 | 1
3 | 3 | 6 | 10 | 11 | 9 | 1 | 2
4 | 4 | 6 | 10 | 16 | 16 | 1 | 3
5 | 5 | 6 | 10 | 15 | 3 | 1 | 4
6 | 6 | 6 | 10 | 10 | -1 | 0 | 5
(6 rows)
在
pgr_aStar(一对多)中start_vid包含 起始 vid 参数值。
SELECT * FROM pgr_aStar(
$$SELECT id, source, target, cost, reverse_cost, x1, y1, x2, y2 FROM edges$$,
6, ARRAY[3, 10]);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 6 | 3 | 6 | 4 | 1 | 0
2 | 2 | 6 | 3 | 7 | 7 | 1 | 1
3 | 3 | 6 | 3 | 3 | -1 | 0 | 2
4 | 1 | 6 | 10 | 6 | 4 | 1 | 0
5 | 2 | 6 | 10 | 7 | 8 | 1 | 1
6 | 3 | 6 | 10 | 11 | 9 | 1 | 2
7 | 4 | 6 | 10 | 16 | 16 | 1 | 3
8 | 5 | 6 | 10 | 15 | 3 | 1 | 4
9 | 6 | 6 | 10 | 10 | -1 | 0 | 5
(9 rows)
在
pgr_aStar(多对一)中end_vid包含 结束 vid 参数值。
SELECT * FROM pgr_aStar(
$$SELECT id, source, target, cost, reverse_cost, x1, y1, x2, y2 FROM edges$$,
ARRAY[3, 6], 10);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 3 | 10 | 3 | 7 | 1 | 0
2 | 2 | 3 | 10 | 7 | 8 | 1 | 1
3 | 3 | 3 | 10 | 11 | 9 | 1 | 2
4 | 4 | 3 | 10 | 16 | 16 | 1 | 3
5 | 5 | 3 | 10 | 15 | 3 | 1 | 4
6 | 6 | 3 | 10 | 10 | -1 | 0 | 5
7 | 1 | 6 | 10 | 6 | 4 | 1 | 0
8 | 2 | 6 | 10 | 7 | 8 | 1 | 1
9 | 3 | 6 | 10 | 11 | 9 | 1 | 2
10 | 4 | 6 | 10 | 16 | 16 | 1 | 3
11 | 5 | 6 | 10 | 15 | 3 | 1 | 4
12 | 6 | 6 | 10 | 10 | -1 | 0 | 5
(12 rows)
如果需要，过滤掉添加的列，例如：
SELECT seq, path_seq, node, edge, cost, agg_cost FROM pgr_aStar(
$$SELECT id, source, target, cost, reverse_cost, x1, y1, x2, y2 FROM edges$$,
6, 10);
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)
如果需要添加新列，类似于以下使用
pgr_dijkstra的示例，并且必须修改该函数才能返回新列：在`v3.0 <https://docs.pgrouting.org/3.0/en/contraction-family.html#case-1-both-source-and-target-belong-to-the-contracted-graph>`__ 中，函数``my_dijkstra`` 使用
pgr_dijkstra。从 v3.5 开始，函数
my_dijkstra返回pgr_dijkstra的新附加列。
迁移 pgr_bdAstar¶
开始从 v3.6.0
要迁移的签名：
pgr_bdAstar(一对一)pgr_bdAstar(一对多)pgr_bdAstar(多对一)
- 迁移前:
输出列是
(seq, path_seq, [start_vid], [end_vid], node, edge, cost, agg_cost)根据所使用的重载，
start_vid和``end_vid`` 列可能会丢失：pgr_bdAstar(一对一)没有start_vid和end_vid。pgr_bdAstar(一对多) 没有start_vid。pgr_bdAstar(多对一) 没有end_vid。
- 迁移:
Be aware of the existence of the additional columns.
在
pgr_bdAstar(一对一)中start_vid包含 起始 vid 参数值。end_vid包含 结束 vid 参数值。
SELECT * FROM pgr_bdAstar(
$$SELECT id, source, target, cost, reverse_cost, x1, y1, x2, y2 FROM edges$$,
6, 10);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 6 | 10 | 6 | 4 | 1 | 0
2 | 2 | 6 | 10 | 7 | 8 | 1 | 1
3 | 3 | 6 | 10 | 11 | 9 | 1 | 2
4 | 4 | 6 | 10 | 16 | 16 | 1 | 3
5 | 5 | 6 | 10 | 15 | 3 | 1 | 4
6 | 6 | 6 | 10 | 10 | -1 | 0 | 5
(6 rows)
在
pgr_bdAstar(一对多)中start_vid包含 起始 vid 参数值。
SELECT * FROM pgr_bdAstar(
$$SELECT id, source, target, cost, reverse_cost, x1, y1, x2, y2 FROM edges$$,
6, ARRAY[3, 10]);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 6 | 3 | 6 | 4 | 1 | 0
2 | 2 | 6 | 3 | 7 | 7 | 1 | 1
3 | 3 | 6 | 3 | 3 | -1 | 0 | 2
4 | 1 | 6 | 10 | 6 | 4 | 1 | 0
5 | 2 | 6 | 10 | 7 | 8 | 1 | 1
6 | 3 | 6 | 10 | 11 | 9 | 1 | 2
7 | 4 | 6 | 10 | 16 | 16 | 1 | 3
8 | 5 | 6 | 10 | 15 | 3 | 1 | 4
9 | 6 | 6 | 10 | 10 | -1 | 0 | 5
(9 rows)
在
pgr_bdAstar(多对一)中end_vid包含 结束 vid 参数值。
SELECT * FROM pgr_bdAstar(
$$SELECT id, source, target, cost, reverse_cost, x1, y1, x2, y2 FROM edges$$,
ARRAY[3, 6], 10);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 3 | 10 | 3 | 7 | 1 | 0
2 | 2 | 3 | 10 | 7 | 8 | 1 | 1
3 | 3 | 3 | 10 | 11 | 9 | 1 | 2
4 | 4 | 3 | 10 | 16 | 16 | 1 | 3
5 | 5 | 3 | 10 | 15 | 3 | 1 | 4
6 | 6 | 3 | 10 | 10 | -1 | 0 | 5
7 | 1 | 6 | 10 | 6 | 4 | 1 | 0
8 | 2 | 6 | 10 | 7 | 8 | 1 | 1
9 | 3 | 6 | 10 | 11 | 9 | 1 | 2
10 | 4 | 6 | 10 | 16 | 16 | 1 | 3
11 | 5 | 6 | 10 | 15 | 3 | 1 | 4
12 | 6 | 6 | 10 | 10 | -1 | 0 | 5
(12 rows)
如果需要，过滤掉添加的列，例如：
SELECT seq, path_seq, node, edge, cost, agg_cost FROM pgr_bdAstar(
$$SELECT id, source, target, cost, reverse_cost, x1, y1, x2, y2 FROM edges$$,
6, 10);
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)
如果需要添加新列，类似于以下使用
pgr_dijkstra的示例，并且必须修改该函数才能返回新列：在`v3.0 <https://docs.pgrouting.org/3.0/en/contraction-family.html#case-1-both-source-and-target-belong-to-the-contracted-graph>`__ 中，函数``my_dijkstra`` 使用
pgr_dijkstra。从 v3.5 开始，函数
my_dijkstra返回pgr_dijkstra的新附加列。
迁移 pgr_dijkstra¶
从`v3.5.0 <https://docs.pgrouting.org/3.5/en/migration.html>`__ 版本开始
要迁移的签名：
pgr_dijkstra(一对一)pgr_dijkstra(一对多)pgr_dijkstra(多对一)
- 迁移前:
输出列是
(seq, path_seq, [start_vid], [end_vid], node, edge, cost, agg_cost)根据所使用的重载，
start_vid和``end_vid`` 列可能会丢失：pgr_dijkstra(一对一)没有start_vid和end_vid。pgr_dijkstra(一对多) 没有start_vid。pgr_dijkstra(多对一) 没有end_vid。
- 迁移:
Be aware of the existence of the additional columns.
在
pgr_dijkstra(一对一)中start_vid包含 起始 vid 参数值。end_vid包含 结束 vid 参数值。
SELECT * FROM pgr_dijkstra(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
6, 10);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 6 | 10 | 6 | 4 | 1 | 0
2 | 2 | 6 | 10 | 7 | 8 | 1 | 1
3 | 3 | 6 | 10 | 11 | 9 | 1 | 2
4 | 4 | 6 | 10 | 16 | 16 | 1 | 3
5 | 5 | 6 | 10 | 15 | 3 | 1 | 4
6 | 6 | 6 | 10 | 10 | -1 | 0 | 5
(6 rows)
在
pgr_dijkstra(一对多)中start_vid包含 起始 vid 参数值。
SELECT * FROM pgr_dijkstra(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
6, ARRAY[3, 10]);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 6 | 3 | 6 | 4 | 1 | 0
2 | 2 | 6 | 3 | 7 | 7 | 1 | 1
3 | 3 | 6 | 3 | 3 | -1 | 0 | 2
4 | 1 | 6 | 10 | 6 | 4 | 1 | 0
5 | 2 | 6 | 10 | 7 | 8 | 1 | 1
6 | 3 | 6 | 10 | 11 | 9 | 1 | 2
7 | 4 | 6 | 10 | 16 | 16 | 1 | 3
8 | 5 | 6 | 10 | 15 | 3 | 1 | 4
9 | 6 | 6 | 10 | 10 | -1 | 0 | 5
(9 rows)
在
pgr_dijkstra(多对一)中end_vid包含 结束 vid 参数值。
SELECT * FROM pgr_dijkstra(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
ARRAY[3, 6], 10);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 3 | 10 | 3 | 7 | 1 | 0
2 | 2 | 3 | 10 | 7 | 8 | 1 | 1
3 | 3 | 3 | 10 | 11 | 9 | 1 | 2
4 | 4 | 3 | 10 | 16 | 16 | 1 | 3
5 | 5 | 3 | 10 | 15 | 3 | 1 | 4
6 | 6 | 3 | 10 | 10 | -1 | 0 | 5
7 | 1 | 6 | 10 | 6 | 4 | 1 | 0
8 | 2 | 6 | 10 | 7 | 8 | 1 | 1
9 | 3 | 6 | 10 | 11 | 9 | 1 | 2
10 | 4 | 6 | 10 | 16 | 16 | 1 | 3
11 | 5 | 6 | 10 | 15 | 3 | 1 | 4
12 | 6 | 6 | 10 | 10 | -1 | 0 | 5
(12 rows)
如果需要，过滤掉添加的列，例如：
SELECT seq, path_seq, node, edge, cost, agg_cost FROM pgr_dijkstra(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
6, 10);
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)
如果需要，过滤掉添加的列，例如：
在`v3.0 <https://docs.pgrouting.org/3.0/en/contraction-family.html#case-1-both-source-and-target-belong-to-the-contracted-graph>`__ 中，函数``my_dijkstra`` 使用
pgr_dijkstra。从 v3.5 开始，函数
my_dijkstra返回pgr_dijkstra的新附加列。
迁移 pgr_drivingdistance¶
- 从:
(seq, [from_v,] node, edge, cost, agg_cost)- 到:
(seq, depth, start_vid, pred, node, edge, cost, agg_cost)
要迁移的签名：
pgr_drivingdistance(单个顶点)pgr_drivingdistance(多个顶点)
- 迁移前:
输出列是 (seq, [from_v,] node, edge, cost, agg_cost)
pgr_drivingdistance(单个顶点)没有
start_vid和depth结果列。
pgr_drivingdistance(多个顶点)有
from_v而不是start_vid结果列。没有
depth结果列。
- 迁移:
Be aware of the existence and name change of the result columns.
pgr_drivingdistance (单个顶点)¶
使用`这个 <https://docs.pgrouting.org/3.5/en/pgr_drivingDistance.html#single-vertex>`__ 示例。
start_vid包含 起始 vid 参数值。depth包含node的深度。pred包含node的前驱。SELECT * FROM pgr_drivingDistance( $$SELECT id, source, target, cost, reverse_cost FROM edges$$, 11, 3.0); seq | depth | start_vid | pred | node | edge | cost | agg_cost -----+-------+-----------+------+------+------+------+---------- 1 | 0 | 11 | 11 | 11 | -1 | 0 | 0 2 | 1 | 11 | 11 | 7 | 8 | 1 | 1 3 | 1 | 11 | 11 | 12 | 11 | 1 | 1 4 | 1 | 11 | 11 | 16 | 9 | 1 | 1 5 | 2 | 11 | 7 | 3 | 7 | 1 | 2 6 | 2 | 11 | 7 | 6 | 4 | 1 | 2 7 | 2 | 11 | 7 | 8 | 10 | 1 | 2 8 | 2 | 11 | 16 | 15 | 16 | 1 | 2 9 | 2 | 11 | 16 | 17 | 15 | 1 | 2 10 | 3 | 11 | 3 | 1 | 6 | 1 | 3 11 | 3 | 11 | 6 | 5 | 1 | 1 | 3 12 | 3 | 11 | 8 | 9 | 14 | 1 | 3 13 | 3 | 11 | 15 | 10 | 3 | 1 | 3 (13 rows)
如果需要，过滤掉添加的列，例如返回原始列
SELECT seq, node, edge, cost, agg_cost
FROM pgr_drivingDistance(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
11, 3.0);
seq | node | edge | cost | agg_cost
-----+------+------+------+----------
1 | 11 | -1 | 0 | 0
2 | 7 | 8 | 1 | 1
3 | 12 | 11 | 1 | 1
4 | 16 | 9 | 1 | 1
5 | 3 | 7 | 1 | 2
6 | 6 | 4 | 1 | 2
7 | 8 | 10 | 1 | 2
8 | 15 | 16 | 1 | 2
9 | 17 | 15 | 1 | 2
10 | 1 | 6 | 1 | 3
11 | 5 | 1 | 1 | 3
12 | 9 | 14 | 1 | 3
13 | 10 | 3 | 1 | 3
(13 rows)
pgr_drivingdistance (多个顶点)¶
使用 这个 示例。
from_v`结果列名称更改为 ``start_vid。depth包含node的深度。pred包含node的前驱。SELECT * FROM pgr_drivingDistance( $$SELECT id, source, target, cost, reverse_cost FROM edges$$, ARRAY[11, 16], 3.0, equicost => true); seq | depth | start_vid | pred | node | edge | cost | agg_cost -----+-------+-----------+------+------+------+------+---------- 1 | 0 | 11 | 11 | 11 | -1 | 0 | 0 2 | 1 | 11 | 11 | 7 | 8 | 1 | 1 3 | 1 | 11 | 11 | 12 | 11 | 1 | 1 4 | 2 | 11 | 7 | 3 | 7 | 1 | 2 5 | 2 | 11 | 7 | 6 | 4 | 1 | 2 6 | 2 | 11 | 7 | 8 | 10 | 1 | 2 7 | 3 | 11 | 3 | 1 | 6 | 1 | 3 8 | 3 | 11 | 6 | 5 | 1 | 1 | 3 9 | 3 | 11 | 8 | 9 | 14 | 1 | 3 10 | 0 | 16 | 16 | 16 | -1 | 0 | 0 11 | 1 | 16 | 16 | 15 | 16 | 1 | 1 12 | 1 | 16 | 16 | 17 | 15 | 1 | 1 13 | 2 | 16 | 15 | 10 | 3 | 1 | 2 (13 rows)
If needed filter out and rename columns, for example, to return the original columns:
SELECT seq, start_vid AS from_v, node, edge, cost, agg_cost
FROM pgr_drivingDistance(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
ARRAY[11, 16], 3.0, equicost => true);
seq | from_v | node | edge | cost | agg_cost
-----+--------+------+------+------+----------
1 | 11 | 11 | -1 | 0 | 0
2 | 11 | 7 | 8 | 1 | 1
3 | 11 | 12 | 11 | 1 | 1
4 | 11 | 3 | 7 | 1 | 2
5 | 11 | 6 | 4 | 1 | 2
6 | 11 | 8 | 10 | 1 | 2
7 | 11 | 1 | 6 | 1 | 3
8 | 11 | 5 | 1 | 1 | 3
9 | 11 | 9 | 14 | 1 | 3
10 | 16 | 16 | -1 | 0 | 0
11 | 16 | 15 | 16 | 1 | 1
12 | 16 | 17 | 15 | 1 | 1
13 | 16 | 10 | 3 | 1 | 2
(13 rows)
Migration of pgr_kruskalDD / pgr_kruskalBFS / pgr_kruskalDFS¶
Starting from v3.7.0 pgr_kruskalDD, pgr_kruskalBFS and pgr_kruskalDFS result columns are being standardized.
- 从:
(seq, depth, start_vid, node, edge, cost, agg_cost)- 到:
(seq, depth, start_vid, pred, node, edge, cost, agg_cost)
pgr_kruskalDD单顶点
多个顶点
pgr_kruskalDFS单顶点
多个顶点
pgr_kruskalBFS单顶点
多个顶点
- 迁移前:
Output columns were (seq, depth, start_vid, node, edge, cost, agg_cost)
Single vertex and Multiple vertices
Do not have
predresult column.
- 迁移:
Be aware of the existence of pred result columns.
If needed filter out the added columns
Kruskal single vertex¶
Using pgr_KruskalDD as example.
Migration is similar to al the affected functions.
Comparing with this example.
Now column pred exists and contains the predecessor of the node.
SELECT * FROM pgr_kruskalDD(
'SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id',
6, 3.5);
seq | depth | start_vid | pred | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+------+----------
1 | 0 | 6 | 6 | 6 | -1 | 0 | 0
2 | 1 | 6 | 6 | 5 | 1 | 1 | 1
3 | 1 | 6 | 6 | 10 | 2 | 1 | 1
4 | 2 | 6 | 10 | 15 | 3 | 1 | 2
5 | 3 | 6 | 15 | 16 | 16 | 1 | 3
(5 rows)
如果需要，过滤掉添加的列，例如返回原始列
SELECT seq, depth, start_vid, node, edge, cost, agg_cost
FROM pgr_kruskalDD(
'SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id',
6, 3.5);
seq | depth | start_vid | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+----------
1 | 0 | 6 | 6 | -1 | 0 | 0
2 | 1 | 6 | 5 | 1 | 1 | 1
3 | 1 | 6 | 10 | 2 | 1 | 1
4 | 2 | 6 | 15 | 3 | 1 | 2
5 | 3 | 6 | 16 | 16 | 1 | 3
(5 rows)
Kruskal multiple vertices¶
Using pgr_KruskalDD as example.
Migration is similar to al the affected functions.
Comparing with this example.
Now column pred exists and contains the predecessor of the node.
SELECT * FROM pgr_kruskalDD(
'SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id',
ARRAY[9, 6], 3.5);
seq | depth | start_vid | pred | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+------+----------
1 | 0 | 6 | 6 | 6 | -1 | 0 | 0
2 | 1 | 6 | 6 | 5 | 1 | 1 | 1
3 | 1 | 6 | 6 | 10 | 2 | 1 | 1
4 | 2 | 6 | 10 | 15 | 3 | 1 | 2
5 | 3 | 6 | 15 | 16 | 16 | 1 | 3
6 | 0 | 9 | 9 | 9 | -1 | 0 | 0
7 | 1 | 9 | 9 | 8 | 14 | 1 | 1
8 | 2 | 9 | 8 | 7 | 10 | 1 | 2
9 | 3 | 9 | 7 | 3 | 7 | 1 | 3
10 | 2 | 9 | 8 | 12 | 12 | 1 | 2
11 | 3 | 9 | 12 | 11 | 11 | 1 | 3
12 | 3 | 9 | 12 | 17 | 13 | 1 | 3
(12 rows)
如果需要，过滤掉添加的列，例如返回原始列
SELECT seq, depth, start_vid, node, edge, cost, agg_cost
FROM pgr_kruskalDD(
'SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id',
ARRAY[9, 6], 3.5);
seq | depth | start_vid | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+----------
1 | 0 | 6 | 6 | -1 | 0 | 0
2 | 1 | 6 | 5 | 1 | 1 | 1
3 | 1 | 6 | 10 | 2 | 1 | 1
4 | 2 | 6 | 15 | 3 | 1 | 2
5 | 3 | 6 | 16 | 16 | 1 | 3
6 | 0 | 9 | 9 | -1 | 0 | 0
7 | 1 | 9 | 8 | 14 | 1 | 1
8 | 2 | 9 | 7 | 10 | 1 | 2
9 | 3 | 9 | 3 | 7 | 1 | 3
10 | 2 | 9 | 12 | 12 | 1 | 2
11 | 3 | 9 | 11 | 11 | 1 | 3
12 | 3 | 9 | 17 | 13 | 1 | 3
(12 rows)
迁移 pgr_KSP¶
Starting from v3.6.0 pgr_KSP result columns are being standardized.
- 从:
(seq, path_id, path_seq, node, edge, cost, agg_cost)- 从:
(seq, path_id, path_seq, start_vid, end_vid, node, edge, cost, agg_cost)
要迁移的签名：
pgr_KSP(一对一)
- 迁移前:
输出列是
(seq, path_id, path_seq, node, edge, cost, agg_cost)start_vid和end_vid列不存在。pgr_KSP(一对一) 没有start_vid和``end_vid``。
- 迁移:
Be aware of the existence of the additional columns.
pgr_KSP (一对一)¶
Using this example.
start_vid包含 起始 vid 参数值。end_vid包含 结束 vid 参数值。
SELECT * FROM pgr_KSP(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
6, 17, 2);
seq | path_id | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+---------+----------+-----------+---------+------+------+------+----------
1 | 1 | 1 | 6 | 17 | 6 | 4 | 1 | 0
2 | 1 | 2 | 6 | 17 | 7 | 10 | 1 | 1
3 | 1 | 3 | 6 | 17 | 8 | 12 | 1 | 2
4 | 1 | 4 | 6 | 17 | 12 | 13 | 1 | 3
5 | 1 | 5 | 6 | 17 | 17 | -1 | 0 | 4
6 | 2 | 1 | 6 | 17 | 6 | 4 | 1 | 0
7 | 2 | 2 | 6 | 17 | 7 | 8 | 1 | 1
8 | 2 | 3 | 6 | 17 | 11 | 9 | 1 | 2
9 | 2 | 4 | 6 | 17 | 16 | 15 | 1 | 3
10 | 2 | 5 | 6 | 17 | 17 | -1 | 0 | 4
(10 rows)
如果需要，过滤掉添加的列，例如，返回原始列：
SELECT seq, path_id, path_seq, node, edge, cost, agg_cost FROM pgr_KSP(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
6, 17, 2);
seq | path_id | path_seq | node | edge | cost | agg_cost
-----+---------+----------+------+------+------+----------
1 | 1 | 1 | 6 | 4 | 1 | 0
2 | 1 | 2 | 7 | 10 | 1 | 1
3 | 1 | 3 | 8 | 12 | 1 | 2
4 | 1 | 4 | 12 | 13 | 1 | 3
5 | 1 | 5 | 17 | -1 | 0 | 4
6 | 2 | 1 | 6 | 4 | 1 | 0
7 | 2 | 2 | 7 | 8 | 1 | 1
8 | 2 | 3 | 11 | 9 | 1 | 2
9 | 2 | 4 | 16 | 15 | 1 | 3
10 | 2 | 5 | 17 | -1 | 0 | 4
(10 rows)
迁移 pgr_maxCardinalityMatch¶
pgr_maxCardinalityMatch 仅适用于无向图，因此 有向 标志已被删除。
从`v3.4.0 <https://docs.pgrouting.org/3.4/en/migration.html>`__ 开始
待迁移签名：
pgr_maxCardinalityMatch(Edges SQL, [directed])
RETURNS SETOF (seq, edge, source, target)
需要迁移，因为：
在内部查询上使用
cost和reverse_cost结果已排序
适用于无向图。
新签名
pgr_maxCardinalityMatch(text)仅仅返回``边`` 列.可选的
directed标志被删除。
- 迁移前:
SELECT * FROM pgr_maxCardinalityMatch(
$$SELECT id, source, target, cost AS going, reverse_cost AS coming FROM edges$$,
directed => true
);
WARNING: pgr_maxCardinalityMatch(text,boolean) deprecated signature on v3.4.0
seq | edge | source | target
-----+------+--------+--------
1 | 1 | 5 | 6
2 | 5 | 10 | 11
3 | 6 | 1 | 3
4 | 13 | 12 | 17
5 | 14 | 8 | 9
6 | 16 | 15 | 16
7 | 17 | 2 | 4
8 | 18 | 13 | 14
(8 rows)
所使用的列是
going和coming，用于表示边的存在。directed标志用于指示是 有向 图还是 无向 图。directed标志被忽略。无论它的值如何，它都会给出将图视为 无向 的结果。
- 迁移:
使用
cost和reverse_cost列来表示边的存在。不要使用
directed标志。查询中仅返回
边列。
SELECT * FROM pgr_maxCardinalityMatch(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$
);
edge
------
1
5
6
13
14
16
17
18
(8 rows)
Migration of pgr_primDD / pgr_primBFS / pgr_primDFS¶
Starting from v3.7.0 pgr_primDD, pgr_primBFS and pgr_primDFS result columns are being standardized.
- 从:
(seq, depth, start_vid, node, edge, cost, agg_cost)- 到:
(seq, depth, start_vid, pred, node, edge, cost, agg_cost)
pgr_primDD单顶点
多个顶点
pgr_primDFS单顶点
多个顶点
pgr_primBFS单顶点
多个顶点
- 迁移前:
Output columns were (seq, depth, start_vid, node, edge, cost, agg_cost)
Single vertex and Multiple vertices
Do not have
predresult column.
- 迁移:
Be aware of the existence of pred result columns.
If needed filter out the added columns
Prim single vertex¶
Using pgr_primDD as example.
Migration is similar to al the affected functions.
Comparing with this example.
Now column pred exists and contains the predecessor of the node.
SELECT * FROM pgr_primDD(
'SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id',
6, 3.5);
seq | depth | start_vid | pred | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+------+----------
1 | 0 | 6 | 6 | 6 | -1 | 0 | 0
2 | 1 | 6 | 6 | 5 | 1 | 1 | 1
3 | 1 | 6 | 6 | 10 | 2 | 1 | 1
4 | 2 | 6 | 10 | 15 | 3 | 1 | 2
5 | 2 | 6 | 10 | 11 | 5 | 1 | 2
6 | 3 | 6 | 11 | 16 | 9 | 1 | 3
7 | 3 | 6 | 11 | 12 | 11 | 1 | 3
8 | 1 | 6 | 6 | 7 | 4 | 1 | 1
9 | 2 | 6 | 7 | 3 | 7 | 1 | 2
10 | 3 | 6 | 3 | 1 | 6 | 1 | 3
11 | 2 | 6 | 7 | 8 | 10 | 1 | 2
12 | 3 | 6 | 8 | 9 | 14 | 1 | 3
(12 rows)
如果需要，过滤掉添加的列，例如返回原始列
SELECT seq, depth, start_vid, node, edge, cost, agg_cost
FROM pgr_primDD(
'SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id',
6, 3.5);
seq | depth | start_vid | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+----------
1 | 0 | 6 | 6 | -1 | 0 | 0
2 | 1 | 6 | 5 | 1 | 1 | 1
3 | 1 | 6 | 10 | 2 | 1 | 1
4 | 2 | 6 | 15 | 3 | 1 | 2
5 | 2 | 6 | 11 | 5 | 1 | 2
6 | 3 | 6 | 16 | 9 | 1 | 3
7 | 3 | 6 | 12 | 11 | 1 | 3
8 | 1 | 6 | 7 | 4 | 1 | 1
9 | 2 | 6 | 3 | 7 | 1 | 2
10 | 3 | 6 | 1 | 6 | 1 | 3
11 | 2 | 6 | 8 | 10 | 1 | 2
12 | 3 | 6 | 9 | 14 | 1 | 3
(12 rows)
Prim multiple vertices¶
Using pgr_primDD as example.
Migration is similar to al the affected functions.
Comparing with this example.
Now column pred exists and contains the predecessor of the node.
SELECT * FROM pgr_primDD(
'SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id',
ARRAY[9, 6], 3.5);
seq | depth | start_vid | pred | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+------+----------
1 | 0 | 6 | 6 | 6 | -1 | 0 | 0
2 | 1 | 6 | 6 | 5 | 1 | 1 | 1
3 | 1 | 6 | 6 | 10 | 2 | 1 | 1
4 | 2 | 6 | 10 | 15 | 3 | 1 | 2
5 | 2 | 6 | 10 | 11 | 5 | 1 | 2
6 | 3 | 6 | 11 | 16 | 9 | 1 | 3
7 | 3 | 6 | 11 | 12 | 11 | 1 | 3
8 | 1 | 6 | 6 | 7 | 4 | 1 | 1
9 | 2 | 6 | 7 | 3 | 7 | 1 | 2
10 | 3 | 6 | 3 | 1 | 6 | 1 | 3
11 | 2 | 6 | 7 | 8 | 10 | 1 | 2
12 | 3 | 6 | 8 | 9 | 14 | 1 | 3
13 | 0 | 9 | 9 | 9 | -1 | 0 | 0
14 | 1 | 9 | 9 | 8 | 14 | 1 | 1
15 | 2 | 9 | 8 | 7 | 10 | 1 | 2
16 | 3 | 9 | 7 | 6 | 4 | 1 | 3
17 | 3 | 9 | 7 | 3 | 7 | 1 | 3
(17 rows)
如果需要，过滤掉添加的列，例如返回原始列
SELECT seq, depth, start_vid, node, edge, cost, agg_cost
FROM pgr_primDD(
'SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id',
ARRAY[9, 6], 3.5);
seq | depth | start_vid | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+----------
1 | 0 | 6 | 6 | -1 | 0 | 0
2 | 1 | 6 | 5 | 1 | 1 | 1
3 | 1 | 6 | 10 | 2 | 1 | 1
4 | 2 | 6 | 15 | 3 | 1 | 2
5 | 2 | 6 | 11 | 5 | 1 | 2
6 | 3 | 6 | 16 | 9 | 1 | 3
7 | 3 | 6 | 12 | 11 | 1 | 3
8 | 1 | 6 | 7 | 4 | 1 | 1
9 | 2 | 6 | 3 | 7 | 1 | 2
10 | 3 | 6 | 1 | 6 | 1 | 3
11 | 2 | 6 | 8 | 10 | 1 | 2
12 | 3 | 6 | 9 | 14 | 1 | 3
13 | 0 | 9 | 9 | -1 | 0 | 0
14 | 1 | 9 | 8 | 14 | 1 | 1
15 | 2 | 9 | 7 | 10 | 1 | 2
16 | 3 | 9 | 6 | 4 | 1 | 3
17 | 3 | 9 | 3 | 7 | 1 | 3
(17 rows)
迁移 pgr_withPointsDD¶
Starting from v3.6.0 pgr_withPointsDD - 拟议 result columns are being standardized.
- 从:
(seq, [start_vid], node, edge, cost, agg_cost)- 到:
(seq, depth, start_vid, pred, node, edge, cost, agg_cost)
并且 driving_side 参数从命名可选变为未命名强制 driving side ，其有效性对于有向图和无向图是不同的。
要迁移的签名：
pgr_withPointsDD(单个顶点)pgr_withPointsDD(多个顶点)
- 迁移前:
pgr_withPointsDD(单个顶点)输出列为
(seq, node, edge, cost, agg_cost)没有
start_vid，pred和``depth`` 结果列。driving_sideparameter was named optional now it is compulsory unnamed.
pgr_withPointsDD(多个顶点)输出列为
(seq, start_vid, node, edge, cost, agg_cost)没有
depth和``pred`` 结果列。driving_sideparameter was named optional now it is compulsory unnamed.
驾驶侧是可选的
此查询的默认值为：
- directed:
true
- driving_side:
'b'
- details:
false
SELECT * FROM pgr_withPointsDD(
$$SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id$$,
$$SELECT pid, edge_id, fraction, side from pointsOfInterest$$,
-1, 3.3);
WARNING: pgr_withpointsdd(text,text,bigint,double precision,boolean,character,boolean) deprecated signature on 3.6.0
seq | node | edge | cost | agg_cost
-----+------+------+------+----------
1 | -1 | -1 | 0 | 0
2 | 5 | 1 | 0.4 | 0.4
3 | 6 | 1 | 0.6 | 0.6
4 | 7 | 4 | 1 | 1.6
5 | 3 | 7 | 1 | 2.6
6 | 8 | 10 | 1 | 2.6
7 | 11 | 8 | 1 | 2.6
8 | -3 | 12 | 0.6 | 3.2
9 | -4 | 6 | 0.7 | 3.3
(9 rows)
驾驶侧被命名为可选
此查询的默认值为：
- directed:
true
- details:
false
SELECT * FROM pgr_withPointsDD(
$$SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id$$,
$$SELECT pid, edge_id, fraction, side from pointsOfInterest$$,
-1, 3.3, driving_side => 'r');
WARNING: pgr_withpointsdd(text,text,bigint,double precision,boolean,character,boolean) deprecated signature on 3.6.0
seq | node | edge | cost | agg_cost
-----+------+------+------+----------
1 | -1 | -1 | 0 | 0
2 | 5 | 1 | 0.4 | 0.4
3 | 6 | 1 | 1 | 1.4
4 | 7 | 4 | 1 | 2.4
(4 rows)
在有向图上 b 可以用作 行驶方向
此查询的默认值为：
- details:
false
SELECT * FROM pgr_withPointsDD(
$$SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id$$,
$$SELECT pid, edge_id, fraction, side from pointsOfInterest$$,
-1, 3.3, directed => true, driving_side => 'b');
WARNING: pgr_withpointsdd(text,text,bigint,double precision,boolean,character,boolean) deprecated signature on 3.6.0
seq | node | edge | cost | agg_cost
-----+------+------+------+----------
1 | -1 | -1 | 0 | 0
2 | 5 | 1 | 0.4 | 0.4
3 | 6 | 1 | 0.6 | 0.6
4 | 7 | 4 | 1 | 1.6
5 | 3 | 7 | 1 | 2.6
6 | 8 | 10 | 1 | 2.6
7 | 11 | 8 | 1 | 2.6
8 | -3 | 12 | 0.6 | 3.2
9 | -4 | 6 | 0.7 | 3.3
(9 rows)
在无向图上 r 可以用作 行驶方向
此外， l 也可用作 驾驶侧
SELECT * FROM pgr_withPointsDD(
$$SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id$$,
$$SELECT pid, edge_id, fraction, side from pointsOfInterest$$,
-1, 3.3, 'r', directed => true);
seq | depth | start_vid | pred | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+------+----------
1 | 0 | -1 | -1 | -1 | -1 | 0 | 0
2 | 1 | -1 | -1 | 5 | 1 | 0.4 | 0.4
3 | 2 | -1 | 5 | 6 | 1 | 1 | 1.4
4 | 3 | -1 | -6 | 7 | 4 | 1 | 2.4
(4 rows)
- 迁移后:
Be aware of the existence of the additional result Columns.
新的输出列是
(seq, depth, start_vid, pred, node, edge, cost, agg_cost)driving side 参数是未命名的强制参数，有向图和无向图的有效值不同。
没有默认值。
在有向图中：有效值为 [
r,R,l,L]在无向图中：有效值为 [
b,B]使用无效值会引发
ERROR。
pgr_withPointsDD (单个顶点)¶
使用`这个 <https://docs.pgrouting.org/3.5/en/pgr_withPointsDD.html#single-vertex>`__ 示例。
(seq, depth, start_vid, pred, node, edge, cost, agg_cost)start_vid包含 起始 vid 参数值。depth包含从start_vid顶点到node的 深度。pred包含node的前驱。
要进行迁移，请在 distance 参数之后使用一个未命名的有效值作为 行驶方向：
SELECT * FROM pgr_withPointsDD(
$$SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id$$,
$$SELECT pid, edge_id, fraction, side from pointsOfInterest$$,
-1, 3.3, 'r', directed => true);
seq | depth | start_vid | pred | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+------+----------
1 | 0 | -1 | -1 | -1 | -1 | 0 | 0
2 | 1 | -1 | -1 | 5 | 1 | 0.4 | 0.4
3 | 2 | -1 | 5 | 6 | 1 | 1 | 1.4
4 | 3 | -1 | -6 | 7 | 4 | 1 | 2.4
(4 rows)
要获取以前版本的结果：
过滤掉额外的列，例如；
当设置
details => false以移除点时，请使用WHERE node >= 0 OR cost = 0
SELECT seq, node, edge, cost, agg_cost FROM pgr_withPointsDD(
$$SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id$$,
$$SELECT pid, edge_id, fraction, side from pointsOfInterest$$,
-1, 3.3, 'r', details => true);
seq | node | edge | cost | agg_cost
-----+------+------+------+----------
1 | -1 | -1 | 0 | 0
2 | 5 | 1 | 0.4 | 0.4
3 | 6 | 1 | 1 | 1.4
4 | -6 | 4 | 0.7 | 2.1
5 | 7 | 4 | 0.3 | 2.4
(5 rows)
pgr_withPointsDD (多个顶点)¶
使用`这个 <https://docs.pgrouting.org/3.5/en/pgr_withPointsDD.html#multiple-vertices>`__ 示例。
(seq, depth, start_vid, pred, node, edge, cost, agg_cost)depth包含从start_vid顶点到node的 深度。pred包含node的前驱。
SELECT * FROM pgr_withPointsDD(
$$SELECT * FROM edges ORDER BY id$$,
$$SELECT pid, edge_id, fraction, side from pointsOfInterest$$,
ARRAY[-1, 16], 3.3, 'l', equicost => true);
seq | depth | start_vid | pred | node | edge | cost | agg_cost
-----+-------+-----------+------+------+------+------+----------
1 | 0 | -1 | -1 | -1 | -1 | 0 | 0
2 | 1 | -1 | -1 | 6 | 1 | 0.6 | 0.6
3 | 2 | -1 | 6 | 7 | 4 | 1 | 1.6
4 | 2 | -1 | 6 | 5 | 1 | 1 | 1.6
5 | 3 | -1 | 7 | 3 | 7 | 1 | 2.6
6 | 3 | -1 | 7 | 8 | 10 | 1 | 2.6
7 | 4 | -1 | 8 | -3 | 12 | 0.6 | 3.2
8 | 4 | -1 | 3 | -4 | 6 | 0.7 | 3.3
9 | 0 | 16 | 16 | 16 | -1 | 0 | 0
10 | 1 | 16 | 16 | 11 | 9 | 1 | 1
11 | 1 | 16 | 16 | 15 | 16 | 1 | 1
12 | 1 | 16 | 16 | 17 | 15 | 1 | 1
13 | 2 | 16 | 15 | 10 | 3 | 1 | 2
14 | 2 | 16 | 11 | 12 | 11 | 1 | 2
(14 rows)
要获取以前版本的结果：
过滤掉额外的列
当设置
details => false以移除点时，请使用WHERE node >= 0 OR cost = 0
SELECT seq, start_vid, node, edge, cost, agg_cost FROM pgr_withPointsDD(
$$SELECT id, source, target, cost, reverse_cost FROM edges ORDER BY id$$,
$$SELECT pid, edge_id, fraction, side from pointsOfInterest$$,
ARRAY[-1, 16], 3.3, 'l', equicost => true) WHERE node >= 0 OR cost = 0;
seq | start_vid | node | edge | cost | agg_cost
-----+-----------+------+------+------+----------
1 | -1 | -1 | -1 | 0 | 0
2 | -1 | 6 | 1 | 0.6 | 0.6
3 | -1 | 7 | 4 | 1 | 1.6
4 | -1 | 5 | 1 | 1 | 1.6
5 | -1 | 3 | 7 | 1 | 2.6
6 | -1 | 8 | 10 | 1 | 2.6
9 | 16 | 16 | -1 | 0 | 0
10 | 16 | 11 | 9 | 1 | 1
11 | 16 | 15 | 16 | 1 | 1
12 | 16 | 17 | 15 | 1 | 1
13 | 16 | 10 | 3 | 1 | 2
14 | 16 | 12 | 11 | 1 | 2
(12 rows)
迁移 pgr_withPointsKSP¶
Starting from v3.6.0 pgr_withPointsKSP -拟议 result columns are being standardized.
- 从:
(seq, path_id, path_seq, node, edge, cost, agg_cost)- 从:
(seq, path_id, path_seq, start_vid, end_vid, node, edge, cost, agg_cost)
而且 driving side 参数从命名的可选参数变为未命名的必选参数 行驶方向，其有效性对于有向图和无向图有所不同。
要迁移的签名：
pgr_withPointsKSP(一对一)
- 迁移前:
输出列是
(seq, path_seq, [start_pid], [end_pid], node, edge, cost, agg_cost)start_vid和end_vid列不存在。
- 迁移:
Be aware of the existence of the additional result Columns.
新的输出列是
(seq, path_id, path_seq, start_vid, end_vid, node, edge, cost, agg_cost)driving side 参数是未命名的强制参数，有向图和无向图的有效值不同。
没有默认值。
在有向图中：有效值为 [
r,R,l,L]在无向图中：有效值为 [
b,B]使用无效值会引发
ERROR。
pgr_withPointsKSP (一对一)¶
使用 这个 示例。
start_vid包含 起始 vid 参数值。end_vid包含 结束 vid 参数值。
SELECT * FROM pgr_withPointsKSP(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT pid, edge_id, fraction, side from pointsOfInterest$$,
-1, -2, 2, 'l');
seq | path_id | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+---------+----------+-----------+---------+------+------+------+----------
1 | 1 | 1 | -1 | -2 | -1 | 1 | 0.6 | 0
2 | 1 | 2 | -1 | -2 | 6 | 4 | 1 | 0.6
3 | 1 | 3 | -1 | -2 | 7 | 8 | 1 | 1.6
4 | 1 | 4 | -1 | -2 | 11 | 11 | 1 | 2.6
5 | 1 | 5 | -1 | -2 | 12 | 13 | 1 | 3.6
6 | 1 | 6 | -1 | -2 | 17 | 15 | 0.6 | 4.6
7 | 1 | 7 | -1 | -2 | -2 | -1 | 0 | 5.2
8 | 2 | 1 | -1 | -2 | -1 | 1 | 0.6 | 0
9 | 2 | 2 | -1 | -2 | 6 | 4 | 1 | 0.6
10 | 2 | 3 | -1 | -2 | 7 | 8 | 1 | 1.6
11 | 2 | 4 | -1 | -2 | 11 | 9 | 1 | 2.6
12 | 2 | 5 | -1 | -2 | 16 | 15 | 1.6 | 3.6
13 | 2 | 6 | -1 | -2 | -2 | -1 | 0 | 5.2
(13 rows)
如果需要，过滤掉附加列，例如，返回原始列：
SELECT seq, path_id, path_seq, node, edge, cost, agg_cost FROM pgr_withPointsKSP(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT pid, edge_id, fraction, side from pointsOfInterest$$,
-1, -2, 2, 'l');
seq | path_id | path_seq | node | edge | cost | agg_cost
-----+---------+----------+------+------+------+----------
1 | 1 | 1 | -1 | 1 | 0.6 | 0
2 | 1 | 2 | 6 | 4 | 1 | 0.6
3 | 1 | 3 | 7 | 8 | 1 | 1.6
4 | 1 | 4 | 11 | 11 | 1 | 2.6
5 | 1 | 5 | 12 | 13 | 1 | 3.6
6 | 1 | 6 | 17 | 15 | 0.6 | 4.6
7 | 1 | 7 | -2 | -1 | 0 | 5.2
8 | 2 | 1 | -1 | 1 | 0.6 | 0
9 | 2 | 2 | 6 | 4 | 1 | 0.6
10 | 2 | 3 | 7 | 8 | 1 | 1.6
11 | 2 | 4 | 11 | 9 | 1 | 2.6
12 | 2 | 5 | 16 | 15 | 1.6 | 3.6
13 | 2 | 6 | -2 | -1 | 0 | 5.2
(13 rows)
转弯限制的迁移¶
限制迁移¶
从`v3.4.0 <https://docs.pgrouting.org/3.4/en/migration.html>`__ 开始
限制的结构发生了变化：
旧的限制结构¶
关于已弃用的签名：
列
rid被忽略via_path必须是相反的顺序。
属于
TEXT类型。当多个过孔边必须用
,分隔时。
target_id是禁止路径的最后一条边。
类型为
INTEGER。
to_cost类型为
FLOAT。
创建旧限制表
CREATE TABLE old_restrictions (
rid BIGINT NOT NULL,
to_cost FLOAT,
target_id BIGINT,
via_path TEXT
);
CREATE TABLE
旧限制已满
INSERT INTO old_restrictions (rid, to_cost, target_id, via_path) VALUES
(1, 100, 7, '4'),
(1, 100, 11, '8'),
(1, 100, 10, '7'),
(2, 4, 9, '5, 3'),
(3, 100, 9, '16');
INSERT 0 5
旧限制内容¶
SELECT * FROM old_restrictions;
rid | to_cost | target_id | via_path
-----+---------+-----------+----------
1 | 100 | 7 | 4
1 | 100 | 11 | 8
1 | 100 | 10 | 7
2 | 4 | 9 | 5, 3
3 | 100 | 9 | 16
(5 rows)
rid = 2 的限制表示的是路径 \(3 \rightarrow 5 \rightarrow9\)
\(3\rightarrow5\)
以相反的顺序位于
via_path列上类型为
TEXT
\(9\)
位于
target_id列上类型为
INTEGER
新的限制结构¶
列
id被忽略列
path类型为
ARRAY[ANY-INTEGER]。包含限制所涉及的所有边。
该数组具有限制的有序边。
列
cost类型为
ANY-NUMERICAL
限制表的创建
CREATE TABLE restrictions (
id SERIAL PRIMARY KEY,
path BIGINT[],
cost FLOAT
);
CREATE TABLE
添加限制
INSERT INTO restrictions (path, cost) VALUES
(ARRAY[4, 7], 100),
(ARRAY[8, 11], 100),
(ARRAY[7, 10], 100),
(ARRAY[3, 5, 9], 4),
(ARRAY[9, 16], 100);
INSERT 0 5
限制数据¶
SELECT * FROM restrictions;
id | path | cost
----+---------+------
1 | {4,7} | 100
2 | {8,11} | 100
3 | {7,10} | 100
4 | {3,5,9} | 4
5 | {9,16} | 100
(5 rows)
rid = 2 的限制表示的是路径 \(3 \rightarrow5 \rightarrow9\)。
通过检查，路径是清晰的。
迁移¶
要将旧的限制表转换为新的限制结构，
使用新的限制结构创建一个新表。
在此迁移指南中使用了
new_restrictions。
为了进行这次迁移，pgRouting 提供了一个用于反转数组的辅助函数
_ pgr_array_reverse，这在迁移过程中是必需的。_pgr_array_reverse:是为此迁移临时创建的
没有记录。
将在下一个正式版本 4.0.0 中删除
SELECT rid AS id,
_pgr_array_reverse(
array_prepend(target_id, string_to_array(via_path::text, ',')::BIGINT[])) AS path,
to_cost AS cost
INTO new_restrictions
FROM old_restrictions;
SELECT 5
迁移后的表内容：
SELECT * FROM new_restrictions;
id | path | cost
----+---------+------
1 | {4,7} | 100
1 | {8,11} | 100
1 | {7,10} | 100
2 | {3,5,9} | 4
3 | {16,9} | 100
(5 rows)
迁移 pgr_trsp （顶点）¶
pgr_trsp - 拟议 的签名已更改，并且新签名中已修复许多问题。 本节将展示如何从旧签名迁移到新的替换函数。 这也会影响限制。
从`v3.4.0 <https://docs.pgrouting.org/3.4/en/migration.html>`__ 开始
待迁移签名：
pgr_trsp(Edges SQL, source, target,
directed boolean, has_rcost boolean
[,restrict_sql text]);
RETURNS SETOF (seq, id1, id2, cost)
Edges SQL的整数类型只能是INTEGER。Edges SQL的浮点类型只能是FLOAT。directed标志是强制性的。没有默认值。
不自动检测
reverse_cost列是否存在。用户必须小心地将列的存在与
has_rcost参数的值相匹配。
内部查询的限制是可选的。
输出列名没有意义
使用以下方式迁移：
pgr_dijkstra` 当没有限制时，
pgr_trsp - 拟议 (一对一)当有限制时。
使用 pgr_dijkstra 迁移 pgr_trsp （顶点）¶
以下查询没有限制。
SELECT * FROM pgr_trsp(
$$SELECT id::INTEGER, source::INTEGER, target::INTEGER, cost, reverse_cost
FROM edges WHERE id != 16$$,
15, 16,
true, true);
WARNING: pgr_trsp(text,integer,integer,boolean,boolean) deprecated signature on v3.4.0
seq | id1 | id2 | cost
-----+-----+-----+------
0 | 15 | 3 | 1
1 | 10 | 5 | 1
2 | 11 | 9 | 1
3 | 16 | -1 | 0
(4 rows)
显示有关弃用的消息
已弃用的功能将在下一个正式版本 4.0.0 中删除
请改用 pgr_dijkstra`。
SELECT * FROM pgr_dijkstra(
$$SELECT id, source, target, cost, reverse_cost
FROM edges WHERE id != 16$$,
15, 16);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 15 | 16 | 15 | 3 | 1 | 0
2 | 2 | 15 | 16 | 10 | 5 | 1 | 1
3 | 3 | 15 | 16 | 11 | 9 | 1 | 2
4 | 4 | 15 | 16 | 16 | -1 | 0 | 3
(4 rows)
类型强制转换已被删除。
-
自动检测
reverse_cost列是否在边SQL中。接受整数类型
ANY-INTEGER接受浮点类型
ANY-NUMERICALdirected标志的默认值为``true``。使用与原始查询相同的值。
在此示例中，默认值为
true。该标志已被省略，并使用默认值。
当需要使用严格相同（无意义）的函数名称和类型进行迁移时：
SELECT seq, node::INTEGER AS id1, edge::INTEGER AS id2, cost
FROM pgr_dijkstra(
$$SELECT id, source, target, cost, reverse_cost
FROM edges WHERE id != 16$$,
15, 16);
seq | id1 | id2 | cost
-----+-----+-----+------
1 | 15 | 3 | 1
2 | 10 | 5 | 1
3 | 11 | 9 | 1
4 | 16 | -1 | 0
(4 rows)
id1是节点id2是边
使用 pgr_trsp``迁移 ``pgr_trsp （顶点）¶
以下查询有限制。
SELECT * FROM pgr_trsp(
$$SELECT id::INTEGER, source::INTEGER, target::INTEGER, cost, reverse_cost
FROM edges WHERE id != 16$$,
15, 16,
true, true,
$$SELECT to_cost, target_id::INTEGER, via_path
FROM old_restrictions$$);
WARNING: pgr_trsp(text,integer,integer,boolean,boolean) deprecated signature on v3.4.0
seq | id1 | id2 | cost
-----+-----+-----+------
0 | 15 | 3 | 1
1 | 10 | 5 | 1
2 | 11 | 11 | 1
3 | 12 | 13 | 1
4 | 17 | 15 | 1
5 | 16 | -1 | 0
(6 rows)
显示有关弃用的消息
已弃用的功能将在下一个正式版本 4.0.0 中删除
限制是函数的最后一个参数
使用旧的限制结构
请改用 pgr_trsp - 拟议 (一对一）。
SELECT * FROM pgr_trsp(
$$SELECT id, source, target, cost, reverse_cost
FROM edges WHERE id != 16$$,
$$SELECT * FROM new_restrictions$$,
15, 16);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | 15 | 16 | 15 | 3 | 1 | 0
2 | 2 | 15 | 16 | 10 | 5 | 1 | 1
3 | 3 | 15 | 16 | 11 | 11 | 1 | 2
4 | 4 | 15 | 16 | 12 | 13 | 1 | 3
5 | 5 | 15 | 16 | 17 | 15 | 1 | 4
6 | 6 | 15 | 16 | 16 | -1 | 0 | 5
(6 rows)
使用了新的限制结构。
这是第二个参数。
类型强制转换已被删除。
-
自动检测
reverse_cost列是否在边SQL中。接受整数类型
ANY-INTEGER接受浮点类型
ANY-NUMERICALdirected标志的默认值为``true``。使用与原始查询相同的值。
在此示例中，默认值为
true。该标志已被省略，并使用默认值。
当需要使用严格相同（无意义）的函数名称和类型进行迁移时：
SELECT seq, node::INTEGER AS id1, edge::INTEGER AS id2, cost
FROM pgr_trsp(
$$SELECT id, source, target, cost, reverse_cost
FROM edges WHERE id != 16$$,
$$SELECT * FROM new_restrictions$$,
15, 16);
seq | id1 | id2 | cost
-----+-----+-----+------
1 | 15 | 3 | 1
2 | 10 | 5 | 1
3 | 11 | 11 | 1
4 | 12 | 13 | 1
5 | 17 | 15 | 1
6 | 16 | -1 | 0
(6 rows)
id1是节点id2是边
迁移 pgr_trsp （边）¶
待迁移签名：
pgr_trsp(sql text, source_edge integer, source_pos float8,
target_edge integer, target_pos float8,
directed boolean, has_rcost boolean
[,restrict_sql text]);
RETURNS SETOF (seq, id1, id2, cost)
sql的整型类型只能是INTEGER。sql的浮点类型只能是FLOAT。directed标志是强制性的。没有默认值。
不自动检测
reverse_cost列是否存在。用户必须小心地将列的存在与
has_rcost参数的值相匹配。
内部查询的限制是可选的。
对于这些迁移指南，将使用以下几点：
SELECT pid, edge_id, fraction, side FROM pointsOfInterest
WHERE pid IN (3, 4);
pid | edge_id | fraction | side
-----+---------+----------+------
3 | 12 | 0.6 | l
4 | 6 | 0.3 | r
(2 rows)
使用以下方式迁移：
pgr_withPoints -拟议 当没有任何限制的时候，
pgr_trsp_withPoints - 拟议 (一对一) 当有限制时。
使用 pgr_withPoints``迁移 ``pgr_trsp （边）¶
以下查询没有限制。
SELECT * FROM pgr_trsp(
$$SELECT id::INTEGER, source::INTEGER, target::INTEGER, cost, reverse_cost
FROM edges$$,
6, 0.3, 12, 0.6,
true, true);
WARNING: pgr_trsp(text,integer,float,integer,float,boolean,boolean) deprecated signature on v3.4.0
seq | id1 | id2 | cost
-----+-----+-----+------
0 | -1 | 6 | 0.7
1 | 3 | 7 | 1
2 | 7 | 10 | 1
3 | 8 | 12 | 0.6
4 | -2 | -1 | 0
(5 rows)
显示有关弃用的消息
已弃用的功能将在下一个正式版本 4.0.0 中删除
请使用 pgr_withPoints -拟议。
SELECT * FROM pgr_withPoints(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT pid, edge_id, fraction FROM pointsOfInterest WHERE pid IN (4, 3)$$,
-4, -3,
details => false);
seq | path_seq | node | edge | cost | agg_cost
-----+----------+------+------+------+----------
1 | 1 | -4 | 6 | 0.7 | 0
2 | 2 | 3 | 7 | 1 | 0.7
3 | 3 | 7 | 10 | 1 | 1.7
4 | 4 | 8 | 12 | 0.6 | 2.7
5 | 5 | -3 | -1 | 0 | 3.3
(5 rows)
类型强制转换已被删除。
不显示详细信息，因为已弃用的函数不显示详细信息。
-
自动检测
reverse_cost列是否在边SQL中。接受整数类型
ANY-INTEGER接受浮点类型
ANY-NUMERICALdirected标志的默认值为``true``。使用与原始查询相同的值。
在此示例中，默认值为
true。该标志已被省略，并使用默认值。
在点查询中不包括
side列。
当需要使用严格相同（无意义）的名称和类型，并且函数的节点值被迁移时：
SELECT seq, node::INTEGER AS id1, edge::INTEGER AS id2, cost
FROM pgr_withPoints(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT * FROM (VALUES (1, 6, 0.3),(2, 12, 0.6)) AS t(pid, edge_id, fraction)$$,
-1, -2,
details => false);
seq | id1 | id2 | cost
-----+-----+-----+------
1 | -1 | 6 | 0.7
2 | 3 | 7 | 1
3 | 7 | 10 | 1
4 | 8 | 12 | 0.6
5 | -2 | -1 | 0
(5 rows)
id1是节点id2是边
使用 pgr_trsp_withPoints 迁移 pgr_trsp （边）¶
以下查询有限制。
SELECT * FROM pgr_trsp(
$$SELECT id::INTEGER, source::INTEGER, target::INTEGER, cost, reverse_cost FROM edges$$,
6, 0.3, 12, 0.6, true, true,
$$SELECT to_cost, target_id::INTEGER, via_path FROM old_restrictions$$);
WARNING: pgr_trsp(text,integer,float,integer,float,boolean,boolean) deprecated signature on v3.4.0
seq | id1 | id2 | cost
-----+-----+-----+------
0 | -1 | 6 | 0.7
1 | 3 | 7 | 1
2 | 7 | 8 | 1
3 | 11 | 9 | 1
4 | 16 | 16 | 1
5 | 15 | 3 | 1
6 | 10 | 2 | 1
7 | 6 | 4 | 1
8 | 7 | 10 | 1
9 | 8 | 12 | 0.6
(10 rows)
显示有关弃用的消息
已弃用的功能将在下一个正式版本 4.0.0 中删除
限制是函数的最后一个参数
使用旧的限制结构
SELECT * FROM pgr_trsp_withPoints(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT * FROM new_restrictions$$,
$$SELECT pid, edge_id, fraction FROM pointsOfInterest WHERE pid IN (4, 3)$$,
-4, -3,
details => false);
seq | path_seq | start_vid | end_vid | node | edge | cost | agg_cost
-----+----------+-----------+---------+------+------+------+----------
1 | 1 | -4 | -3 | -4 | 6 | 0.7 | 0
2 | 2 | -4 | -3 | 3 | 7 | 1 | 0.7
3 | 3 | -4 | -3 | 7 | 8 | 1 | 1.7
4 | 4 | -4 | -3 | 11 | 9 | 1 | 2.7
5 | 5 | -4 | -3 | 16 | 16 | 1 | 3.7
6 | 6 | -4 | -3 | 15 | 3 | 1 | 4.7
7 | 7 | -4 | -3 | 10 | 2 | 1 | 5.7
8 | 8 | -4 | -3 | 6 | 4 | 1 | 6.7
9 | 9 | -4 | -3 | 7 | 10 | 1 | 7.7
10 | 10 | -4 | -3 | 8 | 12 | 0.6 | 8.7
11 | 11 | -4 | -3 | -3 | -1 | 0 | 9.3
(11 rows)
使用了新的限制结构。
这是第二个参数。
类型强制转换已被删除。
不显示详细信息，因为已弃用的函数不显示详细信息。
-
自动检测
reverse_cost列是否在边SQL中。接受整数类型
ANY-INTEGER接受浮点类型
ANY-NUMERICALdirected标志的默认值为``true``。使用与原始查询相同的值。
在此示例中，默认值为
true。该标志已被省略，并使用默认值。
在点查询中不包括
side列。
当需要使用严格相同（无意义）的名称和类型，并且函数的节点值被迁移时：
SELECT seq, node::INTEGER AS id1, edge::INTEGER AS id2, cost
FROM pgr_trsp_withPoints(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT * FROM new_restrictions$$,
$$SELECT * FROM (VALUES (1, 6, 0.3),(2, 12, 0.6)) AS t(pid, edge_id, fraction)$$,
-1, -2,
details => false)
WHERE edge != -1;
seq | id1 | id2 | cost
-----+-----+-----+------
1 | -1 | 6 | 0.7
2 | 3 | 7 | 1
3 | 7 | 8 | 1
4 | 11 | 9 | 1
5 | 16 | 16 | 1
6 | 15 | 3 | 1
7 | 10 | 2 | 1
8 | 6 | 4 | 1
9 | 7 | 10 | 1
10 | 8 | 12 | 0.6
(10 rows)
id1是节点id2是边
迁移 pgr_trspViaVertices¶
待迁移签名：
pgr_trspViaVertices(sql text, vids integer[],
directed boolean, has_rcost boolean
[, turn_restrict_sql text]);
RETURNS SETOF (seq, id1, id2, id3, cost)
Edges SQL的整数类型只能是INTEGER。Edges SQL的浮点类型只能是FLOAT。directed标志是强制性的。没有默认值。
不自动检测
reverse_cost列是否存在。用户必须小心地将列的存在与
has_rcost参数的值相匹配。
内部查询的限制是可选的。
使用以下方式迁移：
pgr_dijkstraVia -拟议 当无限制时，
pgr_trspVia - 拟议 当有限制时。
使用 pgr_dijkstraVia``迁移 ``pgr_trspViaVertices¶
以下查询没有限制。
SELECT * FROM pgr_trspViaVertices(
$$SELECT id::INTEGER, source::INTEGER, target::INTEGER, cost, reverse_cost FROM edges$$,
ARRAY[6, 3, 6],
true, true);
WARNING: pgr_trspViaVertices(text,anyarray,boolean,boolean,text) deprecated function on v3.4.0
seq | id1 | id2 | id3 | cost
-----+-----+-----+-----+------
1 | 1 | 6 | 4 | 1
2 | 1 | 7 | 7 | 1
3 | 2 | 3 | 7 | 1
4 | 2 | 7 | 4 | 1
5 | 2 | 6 | -1 | 0
(5 rows)
显示有关弃用的消息
已弃用的功能将在下一个正式版本 4.0.0 中删除
请使用 pgr_dijkstraVia -拟议。
SELECT * FROM pgr_dijkstraVia(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
ARRAY[6, 3, 6]);
seq | path_id | path_seq | start_vid | end_vid | node | edge | cost | agg_cost | route_agg_cost
-----+---------+----------+-----------+---------+------+------+------+----------+----------------
1 | 1 | 1 | 6 | 3 | 6 | 4 | 1 | 0 | 0
2 | 1 | 2 | 6 | 3 | 7 | 7 | 1 | 1 | 1
3 | 1 | 3 | 6 | 3 | 3 | -1 | 0 | 2 | 2
4 | 2 | 1 | 3 | 6 | 3 | 7 | 1 | 0 | 2
5 | 2 | 2 | 3 | 6 | 7 | 4 | 1 | 1 | 3
6 | 2 | 3 | 3 | 6 | 6 | -2 | 0 | 2 | 4
(6 rows)
类型强制转换已被删除。
-
自动检测
reverse_cost列是否在边SQL中。接受整数类型
ANY-INTEGER接受浮点类型
ANY-NUMERICALdirected标志的默认值为``true``。使用与原始查询相同的值。
在此示例中，默认值为
true。该标志已被省略，并使用默认值。
在点查询中不包括
side列。
当需要使用严格相同（无意义）的函数名称和类型进行迁移时：
SELECT row_number() over(ORDER BY seq) AS seq,
path_id::INTEGER AS id1, node::INTEGER AS id2,
CASE WHEN edge >= 0 THEN edge::INTEGER ELSE -1 END AS id3, cost::FLOAT
FROM pgr_dijkstraVia(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
ARRAY[6, 3, 6])
WHERE edge != -1;
seq | id1 | id2 | id3 | cost
-----+-----+-----+-----+------
1 | 1 | 6 | 4 | 1
2 | 1 | 7 | 7 | 1
3 | 2 | 3 | 7 | 1
4 | 2 | 7 | 4 | 1
5 | 2 | 6 | -1 | 0
(5 rows)
id1是路径标识符id2是节点id3是边
使用 pgr_trspVia``迁移 ``pgr_trspViaVertices¶
以下查询有限制。
SELECT * FROM pgr_trspViaVertices(
$$SELECT id::INTEGER, source::INTEGER, target::INTEGER, cost, reverse_cost FROM edges$$,
ARRAY[6, 3, 6],
true, true,
$$SELECT to_cost, target_id::INTEGER, via_path FROM old_restrictions$$);
WARNING: pgr_trspViaVertices(text,anyarray,boolean,boolean,text) deprecated function on v3.4.0
seq | id1 | id2 | id3 | cost
-----+-----+-----+-----+------
1 | 1 | 6 | 4 | 1
2 | 1 | 7 | 8 | 1
3 | 1 | 11 | 9 | 1
4 | 1 | 16 | 16 | 1
5 | 1 | 15 | 3 | 1
6 | 1 | 10 | 5 | 1
7 | 1 | 11 | 8 | 1
8 | 1 | 7 | 7 | 1
9 | 2 | 3 | 7 | 1
10 | 2 | 7 | 4 | 1
11 | 2 | 6 | -1 | 0
(11 rows)
显示有关弃用的消息
已弃用的功能将在下一个正式版本 4.0.0 中删除
限制是函数的最后一个参数
使用旧的限制结构
使用 pgr_trspVia - 拟议。
SELECT * FROM pgr_trspVia(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT * FROM new_restrictions$$,
ARRAY[6, 3, 6]);
seq | path_id | path_seq | start_vid | end_vid | node | edge | cost | agg_cost | route_agg_cost
-----+---------+----------+-----------+---------+------+------+------+----------+----------------
1 | 1 | 1 | 6 | 3 | 6 | 4 | 1 | 0 | 0
2 | 1 | 2 | 6 | 3 | 7 | 8 | 1 | 1 | 1
3 | 1 | 3 | 6 | 3 | 11 | 9 | 1 | 2 | 2
4 | 1 | 4 | 6 | 3 | 16 | 16 | 1 | 3 | 3
5 | 1 | 5 | 6 | 3 | 15 | 3 | 1 | 4 | 4
6 | 1 | 6 | 6 | 3 | 10 | 5 | 1 | 5 | 5
7 | 1 | 7 | 6 | 3 | 11 | 8 | 1 | 6 | 6
8 | 1 | 8 | 6 | 3 | 7 | 7 | 1 | 7 | 7
9 | 1 | 9 | 6 | 3 | 3 | -1 | 0 | 8 | 8
10 | 2 | 1 | 3 | 6 | 3 | 7 | 1 | 0 | 8
11 | 2 | 2 | 3 | 6 | 7 | 4 | 1 | 1 | 9
12 | 2 | 3 | 3 | 6 | 6 | -2 | 0 | 2 | 10
(12 rows)
使用了新的限制结构。
这是第二个参数。
类型强制转换已被删除。
-
自动检测
reverse_cost列是否在边SQL中。接受整数类型
ANY-INTEGER接受浮点类型
ANY-NUMERICALdirected标志的默认值为``true``。使用与原始查询相同的值。
在此示例中，默认值为
true。该标志已被省略，并使用默认值。
在点查询中不包括
side列。
当需要使用严格相同（无意义）的函数名称和类型进行迁移时：
SELECT row_number() over(ORDER BY seq) AS seq,
path_id::INTEGER AS id1, node::INTEGER AS id2,
CASE WHEN edge >= 0 THEN edge::INTEGER ELSE -1 END AS id3, cost::FLOAT
FROM pgr_trspVia(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT * FROM new_restrictions$$,
ARRAY[6, 3, 6])
WHERE edge != -1;
seq | id1 | id2 | id3 | cost
-----+-----+-----+-----+------
1 | 1 | 6 | 4 | 1
2 | 1 | 7 | 8 | 1
3 | 1 | 11 | 9 | 1
4 | 1 | 16 | 16 | 1
5 | 1 | 15 | 3 | 1
6 | 1 | 10 | 5 | 1
7 | 1 | 11 | 8 | 1
8 | 1 | 7 | 7 | 1
9 | 2 | 3 | 7 | 1
10 | 2 | 7 | 4 | 1
11 | 2 | 6 | -1 | 0
(11 rows)
id1是路径标识符id2是节点id3是边
迁移 pgr_trspViaEdges¶
待迁移签名：
pgr_trspViaEdges(sql text, eids integer[], pcts float8[],
directed boolean, has_rcost boolean
[, turn_restrict_sql text]);
RETURNS SETOF (seq, id1, id2, id3, cost)
Edges SQL的整数类型只能是INTEGER。Edges SQL的浮点类型只能是FLOAT。directed标志是强制性的。没有默认值。
不自动检测
reverse_cost列是否存在。用户必须小心地将列的存在与
has_rcost参数的值相匹配。
内部查询的限制是可选的。
对于这些迁移指南，将使用以下几点：
SELECT pid, edge_id, fraction, side FROM pointsOfInterest
WHERE pid IN (3, 4, 6);
pid | edge_id | fraction | side
-----+---------+----------+------
3 | 12 | 0.6 | l
4 | 6 | 0.3 | r
6 | 4 | 0.7 | b
(3 rows)
并将途经以下途经点： \(4\rightarrow3\rightarrow6\)
使用以下方式迁移：
pgr_withPointsVia - 拟议 当没有限制时，
pgr_trspVia_withPoints - 拟议 当有限制时。
使用 pgr_withPointsVia 迁移 pgr_trspViaEdges¶
以下查询没有限制。
SELECT * FROM pgr_trspViaEdges(
$$SELECT id::INTEGER, source::INTEGER, target::INTEGER, cost, reverse_cost FROM edges$$,
ARRAY[6, 12, 4], ARRAY[0.3, 0.6, 0.7],
true, true);
WARNING: pgr_trspViaEdges(text,integer[],float[],boolean,boolean,text) deprecated function on v3.4.0
seq | id1 | id2 | id3 | cost
-----+-----+-----+-----+------
1 | 1 | -1 | 6 | 0.7
2 | 1 | 3 | 7 | 1
3 | 1 | 7 | 10 | 1
4 | 1 | 8 | 12 | 0.6
5 | 1 | -2 | -1 | 0
6 | 2 | -2 | 12 | 0.4
7 | 2 | 12 | 13 | 1
8 | 2 | 17 | 15 | 1
9 | 2 | 16 | 9 | 1
10 | 2 | 11 | 8 | 1
11 | 2 | 7 | 4 | 0.7
12 | 2 | -3 | -2 | 0
(12 rows)
显示有关弃用的消息
已弃用的功能将在下一个正式版本 4.0.0 中删除
SELECT * FROM pgr_withPointsVia(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT pid, edge_id, fraction FROM pointsOfInterest WHERE pid IN (3, 4, 6)$$,
ARRAY[-4, -3, -6],
details => false);
seq | path_id | path_seq | start_vid | end_vid | node | edge | cost | agg_cost | route_agg_cost
-----+---------+----------+-----------+---------+------+------+------+----------+----------------
1 | 1 | 1 | -4 | -3 | -4 | 6 | 0.7 | 0 | 0
2 | 1 | 2 | -4 | -3 | 3 | 7 | 1 | 0.7 | 0.7
3 | 1 | 3 | -4 | -3 | 7 | 10 | 1 | 1.7 | 1.7
4 | 1 | 4 | -4 | -3 | 8 | 12 | 0.6 | 2.7 | 2.7
5 | 1 | 5 | -4 | -3 | -3 | -1 | 0 | 3.3 | 3.3
6 | 2 | 1 | -3 | -6 | -3 | 12 | 0.4 | 0 | 3.3
7 | 2 | 2 | -3 | -6 | 12 | 13 | 1 | 0.4 | 3.7
8 | 2 | 3 | -3 | -6 | 17 | 15 | 1 | 1.4 | 4.7
9 | 2 | 4 | -3 | -6 | 16 | 9 | 1 | 2.4 | 5.7
10 | 2 | 5 | -3 | -6 | 11 | 8 | 1 | 3.4 | 6.7
11 | 2 | 6 | -3 | -6 | 7 | 4 | 0.3 | 4.4 | 7.7
12 | 2 | 7 | -3 | -6 | -6 | -2 | 0 | 4.7 | 8
(12 rows)
类型强制转换已被删除。
不显示详细信息，因为已弃用的函数不显示详细信息。
-
自动检测
reverse_cost列是否在边SQL中。接受整数类型
ANY-INTEGER接受浮点类型
ANY-NUMERICALdirected标志的默认值为``true``。使用与原始查询相同的值。
在此示例中，默认值为
true。该标志已被省略，并使用默认值。
在点查询中不包括
side列。
当需要使用严格相同（无意义）的名称和类型，并且函数的节点值被迁移时：
SELECT row_number() over(ORDER BY seq) AS seq,
path_id::INTEGER AS id1, node::INTEGER AS id2,
CASE WHEN edge >= 0 THEN edge::INTEGER ELSE -1 END AS id3, cost::FLOAT
FROM pgr_withPointsVia(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT * FROM (VALUES (1, 6, 0.3),(2, 12, 0.6),(3, 4, 0.7)) AS t(pid, edge_id, fraction)$$,
ARRAY[-1, -2, -3],
details=> false);
seq | id1 | id2 | id3 | cost
-----+-----+-----+-----+------
1 | 1 | -1 | 6 | 0.7
2 | 1 | 3 | 7 | 1
3 | 1 | 7 | 10 | 1
4 | 1 | 8 | 12 | 0.6
5 | 1 | -2 | -1 | 0
6 | 2 | -2 | 12 | 0.4
7 | 2 | 12 | 13 | 1
8 | 2 | 17 | 15 | 1
9 | 2 | 16 | 9 | 1
10 | 2 | 11 | 8 | 1
11 | 2 | 7 | 4 | 0.3
12 | 2 | -3 | -1 | 0
(12 rows)
id1是路径标识符id2是节点id3是边
使用 pgr_trspVia_withPoints``迁移``pgr_trspViaEdges¶
以下查询有限制。
SELECT * FROM pgr_trspViaEdges(
$$SELECT id::INTEGER, source::INTEGER, target::INTEGER, cost, reverse_cost FROM edges$$,
ARRAY[6, 12, 4], ARRAY[0.3, 0.6, 0.7],
true, true,
$$SELECT to_cost, target_id::INTEGER, via_path FROM old_restrictions$$);
WARNING: pgr_trspViaEdges(text,integer[],float[],boolean,boolean,text) deprecated function on v3.4.0
WARNING: pgr_trsp(text,integer,float,integer,float,boolean,boolean) deprecated signature on v3.4.0
WARNING: pgr_trsp(text,integer,float,integer,float,boolean,boolean) deprecated signature on v3.4.0
seq | id1 | id2 | id3 | cost
-----+-----+-----+-----+------
1 | 1 | -1 | 6 | 0.7
2 | 1 | 3 | 7 | 1
3 | 1 | 7 | 8 | 1
4 | 1 | 11 | 9 | 1
5 | 1 | 16 | 16 | 1
6 | 1 | 15 | 3 | 1
7 | 1 | 10 | 2 | 1
8 | 1 | 6 | 4 | 1
9 | 1 | 7 | 10 | 1
10 | 1 | 8 | 12 | 1
11 | 2 | 12 | 13 | 1
12 | 2 | 17 | 15 | 1
13 | 2 | 16 | 9 | 1
14 | 2 | 11 | 8 | 1
15 | 2 | 7 | 4 | 0.3
(15 rows)
显示有关弃用的消息
已弃用的功能将在下一个正式版本 4.0.0 中删除
限制是函数的最后一个参数
使用旧的限制结构
使用 pgr_trspVia_withPoints - 拟议 代替。
SELECT * FROM pgr_trspVia_withPoints(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT * FROM new_restrictions$$,
$$SELECT pid, edge_id, fraction FROM pointsOfInterest WHERE pid IN (3, 4, 6)$$,
ARRAY[-4, -3, -6],
details => false);
seq | path_id | path_seq | start_vid | end_vid | node | edge | cost | agg_cost | route_agg_cost
-----+---------+----------+-----------+---------+------+------+------+----------+----------------
1 | 1 | 1 | -4 | -3 | -4 | 6 | 0.7 | 0 | 0
2 | 1 | 2 | -4 | -3 | 3 | 7 | 1 | 0.7 | 0.7
3 | 1 | 3 | -4 | -3 | 7 | 4 | 0.6 | 1.7 | 1.7
4 | 1 | 4 | -4 | -3 | 7 | 10 | 1 | 2.3 | 2.3
5 | 1 | 5 | -4 | -3 | 8 | 12 | 0.6 | 3.3 | 3.3
6 | 1 | 6 | -4 | -3 | -3 | -1 | 0 | 3.9 | 3.9
7 | 2 | 1 | -3 | -6 | -3 | 12 | 0.4 | 0 | 3.9
8 | 2 | 2 | -3 | -6 | 12 | 13 | 1 | 0.4 | 4.3
9 | 2 | 3 | -3 | -6 | 17 | 15 | 1 | 1.4 | 5.3
10 | 2 | 4 | -3 | -6 | 16 | 9 | 1 | 2.4 | 6.3
11 | 2 | 5 | -3 | -6 | 11 | 8 | 1 | 3.4 | 7.3
12 | 2 | 6 | -3 | -6 | 7 | 4 | 0.3 | 4.4 | 8.3
13 | 2 | 7 | -3 | -6 | -6 | -2 | 0 | 4.7 | 8.6
(13 rows)
使用了新的限制结构。
这是第二个参数。
类型强制转换已被删除。
不显示详细信息，因为已弃用的函数不显示详细信息。
-
自动检测
reverse_cost列是否在边SQL中。接受整数类型
ANY-INTEGER接受浮点类型
ANY-NUMERICALdirected标志的默认值为``true``。使用与原始查询相同的值。
在此示例中，默认值为
true。该标志已被省略，并使用默认值。
在点查询中不包括
side列。
当需要使用严格相同（无意义）的名称和类型，并且函数的节点值被迁移时：
SELECT row_number() over(ORDER BY seq) AS seq,
path_id::INTEGER AS id1, node::INTEGER AS id2,
CASE WHEN edge >= 0 THEN edge::INTEGER ELSE -1 END AS id3, cost::FLOAT
FROM pgr_trspVia_withPoints(
$$SELECT id, source, target, cost, reverse_cost FROM edges$$,
$$SELECT * FROM new_restrictions$$,
$$SELECT * FROM (VALUES (1, 6, 0.3),(2, 12, 0.6),(3, 4, 0.7)) AS t(pid, edge_id, fraction)$$,
ARRAY[-1, -2, -3],
details => false);
seq | id1 | id2 | id3 | cost
-----+-----+-----+-----+------
1 | 1 | -1 | 6 | 0.7
2 | 1 | 3 | 7 | 1
3 | 1 | 7 | 4 | 0.6
4 | 1 | 7 | 10 | 1
5 | 1 | 8 | 12 | 0.6
6 | 1 | -2 | -1 | 0
7 | 2 | -2 | 12 | 0.4
8 | 2 | 12 | 13 | 1
9 | 2 | 17 | 15 | 1
10 | 2 | 16 | 9 | 1
11 | 2 | 11 | 8 | 1
12 | 2 | 7 | 4 | 0.3
13 | 2 | -3 | -1 | 0
(13 rows)
id1是路径标识符id2是节点id3是边
另请参阅¶
索引和表格