Grafana-IoTDB java.sql.SQLException if IOTDB version > 0.12.2

Hello,



The Grafana-IoTDB worked in version 0.12.2. But for both **0.12.3** and **0.12.4** it isn't working anymore as Grafana gets no results and the Grafana-IoTDB java application reports errors.



I attached the output of the application log:

[debug_log.txt](https://github.com/apache/iotdb/files/7777312/debug_log.txt)



This situation is reproducible in at least the following conditions:

- Use of the official Docker images: apache/iotdb:0.12.4-grafana

- Use of the official installation procedure as stated on https://iotdb.apache.org/UserGuide/Master/Ecosystem%20Integration/Grafana.html#grafana-iotdb (Option two)



Manual querying iotdb with the cli shows the data without any problems. Please note for all tests; I used identical versions of IoTDB and the Grafana-IoTDB. When switching back to 0.12.2 everything starts working again in Grafana.



Please let me know if I can supply you with any more information. This is my first post, so please forgive me if this report isn't correctly formatted.



Cheers,



Jeffrey

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