| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | currency.salesChannels | const | PRIMARY | PRIMARY | 16 | const | 1 | Using index |
| 1 | SIMPLE | currency.salesChannels.mapping | ref | PRIMARY, fk.sales_channel_currency.currency_id | PRIMARY | 16 | const | 2 | Using where; Using index |
| 1 | SIMPLE | currency | eq_ref | PRIMARY | PRIMARY | 16 | showcase_sw6.currency.salesChannels.mapping.currency_id | 1 | Using index |