自定义UDF，使用列别名进行聚合查询时报空指针异常 iotdb0.13.3
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- Dominant language
- Java
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Description
Contributor guide
Research direction
The report provides only two screenshots and does not name a source file, test, query text, or entry point. Start by extracting the custom UDF, column-alias aggregation query, and null-pointer details from the screenshots, then reproduce the failure on IoTDB 0.13.3; done means the query completes without the exception.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- databases
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 15/100