TDengine is an open source, high-performance, cloud native time-series database optimized for Internet of Things (IoT), Connected Cars, Industrial IoT and DevOps.
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WangYMDKU opened this issue 2 months ago · comments
试了一下以下SQL: create stream s1 into st1 AS select lower(cells_v) from sample_table_1; 报错: Unsupported stream query cells_v是字符串类型
create stream s1 into st1 AS select lower(cells_v) from sample_table_1;
版本3.2.3.0
解决了。单行函数外面需要套一层聚合函数才可以。。。建议更新下文档这里。标量其实不能单独使用。