datax处理double类型数据的精度丢失问题
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- Dominant language
- Java
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Description
reader：oceanbase10reader
字段类型：NUMBER(17，2)
数据：99999999999999.99
writer：hdfswriter
字段类型：DECIMAL(17,2)
数据：9.999999999999998B
hive表查询出来数据就是：99999999999999.98
这种应该是数据超出了double类型的长度导致的，有没有可能通过datax的参数配置或类型转换来解决这个问题？
Contributor guide
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Research direction
Start with the oceanbase10reader-to-hdfswriter conversion path and reproduce the reported NUMBER(17,2) to DECIMAL(17,2) transfer using 99999999999999.99. Trace where the value becomes a double, then verify that the Hive result preserves the original decimal value without precision loss.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- data-engineering, databases
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100