我使用ApachePhoenix驱动程序（v4.13.1）运行了一个包含两个联接的简单查询：

explain 
   select one.pk, two.pk, three.pk
   from table_one one
      left join table_two two on two.pk = one.two_id
      left join table_three three on three.pk = two.three_id . 
   where one.pk = 1

结果看起来很糟糕：

CLIENT 1-CHUNK 1 ROWS 384 BYTES PARALLEL 1-WAY ROUND ROBIN POINT LOOKUP ON 1 KEY OVER table_one
    PARALLEL LEFT-JOIN TABLE 0
        CLIENT 1-CHUNK PARALLEL 1-WAY ROUND ROBIN FULL SCAN OVER table_two
    PARALLEL LEFT-JOIN TABLE 1(DELAYED EVALUATION)
        CLIENT 1-CHUNK PARALLEL 1-WAY ROUND ROBIN FULL SCAN OVER table_three
            SERVER FILTER BY FIRST KEY ONLY

注意，根据计划表2和表3上的联接将是完全扫描，即使联接是由rowkey进行的。
我希望能进行范围扫描，或者至少不是完全扫描。我对这个计划理解正确吗？完全扫描真的会被执行吗？