When you do a query test, you should let the parameter ‘IS_QUERY_TEST’= true； The parameters associated with query test are as follows：
- QUERY_CHOICE: It decides the type of query statement to be tested.
- QUERY_SENSOR_NUM: It decides the number of sensor in a query statement.
- QUERY_AGGREGATE_FUN: It decides the type of aggregate function in a query statement.
- QUERY_INTERVAL: It decides the time interval between startTime and endTime in a query statement.(ms)
- QUERY_LOWER_LIMIT: It gives the lower bounds of the sensor values in conditional queries.
Currently, 7 types of queries are supported by setting parameter ‘QUERY_CHOICE’：
- precise point query
- fuzzy point query
- query statement with aggregate function
- range query (limit start stop time)
- conditional query (limit start and stop time and the value of each sensor is greater than QUERY_LOWER_LIMIT)
- nearest point query
- query statement with groupBy
When QUERY_SENSOR_NUM = 2，QUERY_AGGREGATE_FUN = max_value, QUERY_INTERVAL = 25000, QUERY_LOWER_LIMIT = 0;