在MySQL中查询以逐行获取路由。从站点A到站点B

Question

我有一个非常简单的表，其中包含ID Primary Key，SITE_X和SITE_Y。例如，我要查询从site A到site F的路线，结果应该是这样的：

• SITE_X-Y
• AA-BB
• BB-CC
• CC-DD
• DD-FF

---

SELECT a.ID AS id1,b.ID AS id2,a.SITE_X, a.SITE_Y, b.SITE_X, b.SITE_Y
FROM GRAFO_TESTE.teste_1 a
JOIN GRAFO_TESTE.teste_1 b
ON a.SITE_Y = b.SITE_X
WHERE a.SITE_X = 'AA'
OR b.SITE_Y = 'FF';

ID  SITE_X  SITE_Y
1   AA  BB
2   BB  CC
3   DD  EE
4   GG  FF
5   GG  HH
6   GG  CC
7   EE  FF

ROTA from site AA to site FF
SITE_X-Y
AA-BB
BB-CC
CC-DD
DD-FF

预期结果