Postgresql table example for LineGraph

[vidhan13j07]

(Original Graph)Edges input to the line Graph.(Basically vertices of LineGraph)

Id	Source	Target	Cost	Reverse_cost
1	1	2	1	1
2	2	3	-1	1
3	3	4	-1	1
4	2	5	1	1
5	3	6	1	-1
6	7	8	1	1
7	8	5	1	1
8	5	6	1	1
9	6	9	1	1
10	5	10	1	1
11	6	11	1	-1
12	10	11	1	-1
13	11	12	1	-1
14	10	13	1	1
15	9	12	1	1
16	4	9	1	1
17	14	15	1	1
18	16	17	1	1

Output from the line Graph

seq	source	target	cost	reverse_cost
1	-2	-1	1	-1
2	-4	-1	1	1
3	-2	4	1	-1
4	-3	-2	1	-1
5	-3	5	1	-1
6	-16	-3	1	-1
7	7	-4	1	1
8	-8	-4	1	1
9	-10	-4	1	1
10	-8	-7	1	1
11	-10	-7	1	1
12	-10	8	1	1
13	5	-8	1	-1
14	-9	-8	1	1
15	5	9	1	-1
16	5	11	1	-1
17	8	11	1	-1
18	-9	11	1	-1
19	-7	-6	1	1
20	-15	-9	1	1
21	16	-9	1	1
22	16	15	1	1
23	-14	-10	1	1
24	10	12	1	-1
25	-14	12	1	-1
26	11	13	1	-1
27	12	13	1	-1
28	13	-15	1	-1