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mysql - #1060 - Duplicate column name 'id'

Why I get #1060 - Duplicate column name 'id'

SELECT COUNT(*) FROM (SELECT * FROM `tips` `t` LEFT JOIN
tip_usage ON tip_usage.tip_id=t.id GROUP BY t.id) sq
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Probably because the * in select * selects two columns with the same name from tip_usage and tips.


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