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  1. Hive
  2. HIVE-27553

After upgrading from Hive1 to Hive3, Decimal computation experiences a loss of precision

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Details

    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 3.1.3, 4.0.0
    • None
    • HiveServer2

    Description

      I can reproduce this bug.

      create table decimal_test(
          id int,
          quantity decimal(38,8),
          cost decimal(38,8)
      ) stored as textfile;
       
      insert into decimal_test values(1,0.00008000, 0.00015000);
       
      select quantity * cost from decimal_test;

      1、The following are the execution results and execution plan on Hive-1.0.1:

      2、The following are the execution results and execution plan on Hive-3.1.3:

       

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              bowen.zheng ZhengBowen
              bowen.zheng ZhengBowen
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                Created:
                Updated: