Once you have the EXPLAIN output, look at how the query's result set is generated, and then consider alternative access path possibilities.

得到EXPLAIN输出之后，查看查询的结果集是如何生成的，然后考虑是否可以采用其他访问路径。

youdao

Once you have the EXPLAIN output, look at how the query's result set is generated, and then consider alternative access path possibilities.

得到EXPLAIN输出之后，查看查询的结果集是如何生成的，然后考虑是否可以采用其他访问路径。

youdao