@@ -160,7 +160,7 @@ Since there is no data in the result range [2017-11-03T00:00:00, 2017-11-03T00:
It is worth noting that the path after SELECT in GROUP BY statement must be aggregate function, otherwise the system will give the corresponding error prompt, as shown below:
In the actual use of IoTDB, when doing the query operation of timeseries, situations where the value is null at some time points may appear, which will obstruct the further analysis by users. In order to better reflect the degree of data change, users expect missing values to be automatically filled. Therefore, the IoTDB system introduces the function of Automated Fill.
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@@ -349,7 +349,7 @@ select temperature from root.sgcc.wf03.wt01 where time = 2017-11-01T16:37:50.000
The SQL statement will not be executed and the corresponding error prompt is given as follows:
When the parameter N/SN of LIMIT/SLIMIT clause is not a positive intege, the system will prompt errors. For example, executing the following SQL statement:
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@@ -466,7 +466,7 @@ select status,temperature from root.ln.wf01.wt01 where time > 2017-11-01T00:05:0
The SQL statement will not be executed and the corresponding error prompt is given as follows:
When the parameter OFFSET of LIMIT clause exceeds the size of the result set, IoTDB will return an empty result set. For example, executing the following SQL statement:
