iotdb Discrepancy in Count Query Results Between Grafana-Plugins and IoTDB CLI

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Version

IoTDB 1.2.2 Standalone
IoTDB Grafana Plugin 1.0 (Grafana interface)
Grafana 10.2.2

Describe the bug and provide the minimal reproduce step

Problem Description

When executing a SELECT COUNT(DISTINCT()) query, there's an observed inconsistency in the returned count value between Grafana-Plugins and the IoTDB CLI. While the IoTDB CLI returns the expected and accurate count, the Grafana-Plugins display an incorrect count number.

IoTDB CLI Result (Correct Count)

IoTDB CLI Result IoTDB CLI Query

Grafana Explore Query (Incorrect Count)

Grafana Explore Query Grafana Explore Result

Steps to Reproduce

Execute the SELECT COUNT(DISTINCT()) query using IoTDB CLI.
Execute the same query using Grafana-Plugins within the Grafana Explore interface.
Compare the returned count values.

What did you expect to see?

Expected Behavior

The count value returned by Grafana-Plugins should align with the count value retrieved using IoTDB CLI for the same COUNT(DISTINCT()) query.

What did you see instead?

Actual Behavior

During the execution of the SELECT COUNT(DISTINCT()) query using Grafana-Plugins, the returned count value deviates from the expected count. Specifically, the count value displayed in Grafana-Plugins is 0, whereas the accurate count obtained through IoTDB CLI is 2.