haoguangsu

when i want to get a image, there is a error log in chrome console

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rpcError: upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111 at grpc-web-transport.js:96:23 

3.0.4.0 elapsed function issue

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1.背景：server_version = 3.0.4.0。数据库时间分辨率为ns  2.创建一张表，并插入两条条数据，这两条数据的时间戳主键间隔1纳秒  3.使用elapsed函数进行查询，发现结果不符合预期  4.扩大两条数据的时间间隔，也有如下问题：    5.又验证了毫秒、微秒级别的数据库，都能够返回正确结果。  

3.2.2.0 Multi-table join query issue

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问题版本：3.2.2.0 问题表现： 数据库中新增一张表，create table t_test(sdbkey timestamp, name nchar(10)); 插入多条数据： insert into t_test values(1705031520000000000, 'name1'),(1705031520000000001, 'name2'),(1705031520000000002, 'name3'),(1705031580000000000, 'name4'),(1705031580000000001, 'name5'),(1705031580000000002, 'name6');  当执行下面两条sql时，发现了问题： sql1: taos> select * from t_test t1, (select *...

Stream processing in 3.x not working as expected

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 max_current里为什么显示的不是meters里的最大值10.8，反而是最小值10.3？

一、预置条件 1.创建表 create table test(ts timestamp, oid int, fevalue int); 2.插入数据 insert into test values(1729166111443340001,1,1), (1729166111443340002,1,2), (1729166111443340003,1,3), (1729166111443340004,1,4), (1729166111443340005,1,5), (1729166111443340006,1,6), (1729166111443340007,1,7), (1729166111443340008,1,8), (1729166111443340009,1,9), (1729166111443340010,1,10), (1729166111443340011,1,11), (1729166111443340012,1,12), (1729166111443340013,1,13), (1729166111443340014,1,14), (1729166111443340015,1,15); 二、非主键列...