id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE b ref site_status,siteid site_status 1 const 11930 Using where; Using temporary; Using filesort 1 SIMPLE a eq_ref PRIMARY PRIMARY 4 database_com.b.siteid 1 1 SIMPLE c eq_ref PRIMARY PRIMARY 4 database_com.b.reviewid 1 1 SIMPLE d eq_ref PRIMARY PRIMARY 4 database_com.a.primary_cat 1 1 SIMPLE e eq_ref PRIMARY PRIMARY 4 database_com.a.sitetype 1 1 SIMPLE f ref siteid,cost_option siteid 4 database_com.b.siteid 2 1 SIMPLE g ref siteid,cost_option siteid 4 database_com.a.id 2 1 SIMPLE y eq_ref PRIMARY PRIMARY 4 database_com.a.clone_type 1 Using where 1 SIMPLE inc eq_ref PRIMARY PRIMARY 4 database_com.a.id 1