| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | d0_ | const | PRIMARY | PRIMARY | 4 | const | 1 | 100.00 | Using temporary; Using filesort | |
| 1 | SIMPLE | d1_ | ref | IDX_35DCD7318C22AA1A | IDX_35DCD7318C22AA1A | 4 | const | 2 | 100.00 | Using where | |
| 1 | SIMPLE | d2_ | eq_ref | PRIMARY | PRIMARY | 4 | dalian_ec1.d1_.block_id | 1 | 100.00 | Using where |