gourp by问题 #25781
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waynezhao1024
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gourp by问题
#25781
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应该是因为 max 只支持数值类型，不是 group by 的问题 |
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查询普通表时，用select max(A) group by A, A的类型是VARCHAR或TIMESTAMP就报错，只能用数字类型吗？能兼容其他非数字类型吗？
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