如何使用条件为 MYSQL 查询的 3 列使用内连接

Question

I have 2 tables in table sample1 have key1 and key2.... in table sample2 have tey1 and tey2 and tey3....

i want join tables with this condition 1_ if key1 = tey1 Or 2_ if key2 = tey2 or key2 = tey3

and if key1 = tey1 dontcheck key2 = tey2 or key2 = tey3

my querie is:

Select *
from sample1 inner join sample2 
on  sample1.key1 = sample2.tey1 OR  sample1.key2 = sample2.tey2 OR sample1.key2 = sample2.tey3    

but it's too slow and i think not optimal

Answer 1

select s1. ,s2. from sample1 as s1, sample2 as s2 where s1.key1 = s2.tey1 OR s1.key2 = s2.tey2 OR s1.key2 = s2.tey3