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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE sylius_channel_locales ref PRIMARY, IDX_786B7A8472F5A1AA, IDX_786B7A84E559DFD1 IDX_786B7A8472F5A1AA 4 const 2 100 Using index
1 SIMPLE t0 ALL PRIMARY 2 50 Using where; Using join buffer (Block Nested Loop)