"I want to use the built-in UDTF functions, but I don't know what they are. How can I find them? Before using it, do I need to register it? I don't know the rea
"I want to use the built-in UDTF functions, but I don't know what they are. How can I find them? Before using it, do I need to register it? I don't know the rea
I execute multiple requests concurrently. Each request uses the following code: session.open ... session.close() I'm not sure whether it will cause concurre
I execute the statement below in the picture.However, I failed. I don't know the reason about it. Apache IoTDB version: 0.13 If someone knows it, please let me
I have deployed the Apache IoTDB in the Raspberry Pie which also collect the temperature data by ds18b20.Now I want to insert the data collected to the Apache I
I want to set tags on the device in Apache IoTDB, but I don't know how to do it. Apache IoTDB version: 0.13 If someone knows it, please let me know.
I want to query a certain section of data in the Apache IoTDB. However, I encounter some errors in the below picture. I don't know the reason about it.If someon
After I wrote a batch of data into the Apache IoTDB and stopped for a period of time, I found that the CPU and memory on the machine were still full. I don't kn
I want to delete the device in the Apache IoTDB. But I don't know how to do it. I can't find something like delete devices command in the user guide. Apache IoT
I want to query the value of a variable in Apache IoTDB 0.13, but I don't know how to do it. I know the method in Apache IoTDB 0.12. It seems
The sql statement below select sum(jiangyuliang) from root.disaster.sd.* where time>=2022-05-01T08:00:00 and time<=2022-05-01T23:00:00 FILL(0) align by d
There is an error with the result of aggregation on series with * and where clause.The value of count(root.ln.wf02.wt02.temperature) should be 21 but it turned
I use the API insertTablet to insert the data into the Apache IoTDB. org.apache.iotdb.tsfile.common.conf.TSFileDescriptor - Failed to find config file iotdb-eng
I save the raw value 35705231438 into the Apache IoTDB, and I specify the TSDataType is TEXT. However, when I query the value, it shows 3.5705231438E10. This is
I want to use the Python API to import the csv file data into the Apache IoTDB. How can I do it? Apache IoTDB version: 0.13
I want to query only the aggregate data of some devices in the Apache IoTDB. However, I don't know how to do it. If someone knows it, please let me know. Apache
I try to create the metadata template, but it failed. I got the warning no set the schemaNames.I don't know the reason about it. Apache IoTDB version: 0.13 If s
I want to use the OPC interface in the Apache IoTDB.I don't know how to do it. If someone knows it, please let me know. Apache IoTDB version: 0.13
I want to increase the number of threads written by Java API in the Apache IoTDB.However, I don't know how to do it. If someone knows it, please let me know. Ap
I try to insert the storage group in the Apache IoTDB. However, I encounter some error message Path xxx does not exist. The parameter IS_DELETE_DATA=false. I do