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[GitHub] [incubator-shardingsphere] geomonlin edited a comment on issue #4565: distinct returns wrong result

geomonlin edited a comment on issue #4565: distinct returns wrong result
URL: https://github.com/apache/incubator-shardingsphere/issues/4565#issuecomment-593724603
 
 
   I test it, eg: table: t_order `CREATE TABLE IF NOT EXISTS t_order (order_id BIGINT NOT NULL AUTO_INCREMENT, user_id INT NOT NULL, status VARCHAR(50), PRIMARY KEY (order_id));`
   The inserted user_id  contains
   **6
   2
   2
   2
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   2
   2
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   3
   1
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   3**
   When exec "SELECT distinct user_id from t_order", the output resutl is Duplicate data,
   **3
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   2**
   When exec `SELECT distinct user_id from t_order GROUP BY user_id`, the resutl is Correct.
   **1
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