1460
1460
1 SIMPLE D system PRIMARY NULL NULL NULL 1
1461
1461
1 SIMPLE DSAR system NULL NULL NULL NULL 1
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1462
1 SIMPLE DT range t_id t_id 2 NULL 2 Using where
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1464
SELECT * FROM t5 DU, t1 D, t4 DT, t2 DSA, t3 DSAR
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1465
WHERE DU.dog_id=D.dog_id AND D.dog_id=DT.dog_id AND D.birthday=DT.birthday AND
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1466
DT.t_id=DSA.t_id AND DT.birthday=DSA.birthday AND DSA.dog_id=DSAR.dog_id;