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MysqL> explain select * from test06 where id>1;
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+----+-------------+--------+------+---------------+------+---------+------+---------+-------------+
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| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
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+----+-------------+--------+------+---------------+------+---------+------+---------+-------------+
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| 1 | SIMPLE | test06 | ALL | idx_test03_id | NULL | NULL | NULL | 2009559 | Using where |
- +----+-------------+--------+------+---------------+------+---------+------+---------+-------------+
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