The data of the pre aggregation table obtained by the SDK is empty, but the value is found by the command query

[wuyou10206]

Bug Description
The data of the pre aggregation table obtained by the SDK is empty, but the value is found by the command query

Expected Behavior
The SDK can obtain the correct data of the pre aggregation table

Steps to Reproduce

[dl239]

JNI will call c_str if convert to java String. There is problem if the string is binary
result = (arg1)->GetStringUnsafe(arg2);
jresult = jenv->NewStringUTF((&result)->c_str());