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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2022/10/10 06:41:24 UTC

[GitHub] [shardingsphere] cucuzi opened a new issue, #16787: Get select sum decimal precision error

cucuzi opened a new issue, #16787:
URL: https://github.com/apache/shardingsphere/issues/16787

   ## Bug Report
   I select a list, but the decimal is wrong.
   
   using shardingsphere-jdbc: 5.1.0
   
   ### Expected behavior
   list string:
   [BookClassStatistic(classChar=A, classNum=2, bookNum=3, sumPrice=89.10), BookClassStatistic(classChar=B, classNum=2, bookNum=3, sumPrice=121.60), BookClassStatistic(classChar=D, classNum=2, bookNum=2, sumPrice=38.80), BookClassStatistic(classChar=Z, classNum=1, bookNum=2, sumPrice=5.52)]
   
   **By the way,  changing database field ( book.price ) type to decimal will get true result.**
   
   ### Actual behavior
   list string:
   [BookClassStatistic(classChar=A, classNum=2, bookNum=3, sumPrice=89.10000228881836), BookClassStatistic(classChar=B, classNum=2, bookNum=3, sumPrice=121.5999984741211), BookClassStatistic(classChar=D, classNum=2, bookNum=2, sumPrice=38.79999923706055), BookClassStatistic(classChar=Z, classNum=1, bookNum=2, sumPrice=5.519999980926514)]
   
   ### Example codes
   **SELECT SQL**
   ```
   SELECT UPPER(LEFT(bg.class_no, 1)) class_char,
           count(DISTINCT (bg.class_no)) class_num,
           count(b.id) book_num,
           sum(b.price) sum_price
           FROM book b
           JOIN bibliography bg ON b.bibliography_id = bg.id
           WHERE b.user_id = ?
           GROUP BY class_char
   ```
   
   **Object**
   ```
   @Data
   public class BookClassStatistic {
       private String classChar;
       private Integer classNum;
       private Integer bookNum;
       private BigDecimal sumPrice;
   }
   ```
   
   **Sharding rule**
   ```
   spring:
     shardingsphere:
       rules:
         sharding:
           tables:
             book:
               actual-data-nodes: db0.book_$->{0..2}
               table-strategy:
                 standard:
                   sharding-column: user_id
                   sharding-algorithm-name: table-inline
               key-generate-strategy:
                 column: id
                 key-generator-name: snowflake
           sharding-algorithms:
             table-inline:
               type: INLINE
               props:
                 algorithm-expression: book_$->{user_id % 3}
   ```
   
   **SQL FILE**
   [demo1.zip](https://github.com/apache/shardingsphere/files/8478431/demo1.zip)
   


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[GitHub] [shardingsphere] github-actions[bot] closed issue #16787: Get select sum decimal precision error

Posted by GitBox <gi...@apache.org>.
github-actions[bot] closed issue #16787: Get select sum decimal precision error
URL: https://github.com/apache/shardingsphere/issues/16787


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Re: [I] Get select sum decimal precision error [shardingsphere]

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #16787:
URL: https://github.com/apache/shardingsphere/issues/16787#issuecomment-2026020762

   There hasn't been any activity on this issue recently, and in order to prioritize active issues, it will be marked as stale.


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[GitHub] [shardingsphere] strongduanmu commented on issue #16787: Get select sum decimal precision error

Posted by GitBox <gi...@apache.org>.
strongduanmu commented on issue #16787:
URL: https://github.com/apache/shardingsphere/issues/16787#issuecomment-1097582004

   @cucuzi Thank you for your contribution, I will investigate this issue.


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[GitHub] [shardingsphere] github-actions[bot] commented on issue #16787: Get select sum decimal precision error

Posted by GitBox <gi...@apache.org>.
github-actions[bot] commented on issue #16787:
URL: https://github.com/apache/shardingsphere/issues/16787#issuecomment-1272350037

   Hello , this issue has not received a reply for several days.
   This issue is supposed to be closed.


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