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select部分字段NULL值返回随机值 #29541

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liujiangithub opened this issue Jan 9, 2025 · 0 comments

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bug

liujiangithub commented Jan 9, 2025 •

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Bug Description
select部分字段NULL值返回随机值

To Reproduce
Steps to reproduce the behavior:
1 数据表有上百个字段，总共写入几条数据，其中存在大量NULL值，数据表已经停止写入操作
2 select * from xxx查询出来的值没有问题
3 select 字段1，字段2，字段2...., 字段N(合计约30个字段) 查询出来的结果，原本是NULL值得地方会出现随机值

Expected Behavior
所有语句NULL值返回正确

Screenshots

Environment (please complete the following information):

OS: ubuntu18.04
Memory, CPU, current Disk Space: 不涉及
TDengine Version [e.g. 1.6.1.7] 3.3.1.0

Additional Context
1 有问题的语句如果减少指定的查询字段数量，不会遇到问题。
2 重启taosd服务后恢复正常

liujiangithub added the bug label

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