| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | publication_phase_evolution | ref | PRIMARY, IDX_309DBD9538B217A7, IDX_309DBD952B200B63 | IDX_309DBD9538B217A7 | 4 | const | 2 | 100.00 | Using index | |
| 1 | SIMPLE | t0 | ALL | PRIMARY | 3 | 33.33 | Using where; Using join buffer (hash join) |