| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | plg_customer_group_categories_groups | ref | PRIMARY, IDX_9D7AA94812469DE2, IDX_9D7AA948FE54D947 | IDX_9D7AA94812469DE2 | 4 | const | 1 | Using index |
| 1 | SIMPLE | t0 | eq_ref | PRIMARY | PRIMARY | 4 | mahjontv1326_dev.plg_customer_group_categories_groups.group_id | 1 | Using where |