Lightweight version `show trace` returns empty results, affecting ODC execution profiling

[chyujing]

Environment

• Version: (Required) Please specify the target branch and iteration mapping.
• Is this a temporary version provided by RD?: No
• Reproducibility: Consistently reproducible
• Test/Environment Changes: The issue appeared after adding new test scenarios, switching to a new machine, running new tools, or replacing with a new version.
• Other anomalies or changes in the environment?: No

Description

The show trace command in the lightweight version returns empty results. This issue directly impacts the execution profiling functionality in ODC (OceanBase Developer Center).

Steps to Reproduce

(Please provide detailed reproduction steps, including specific SQL statements if applicable.)

[hnwyllmm]

The issue has reappeared in version 1.2.0.
Connection string: obclient -h11.162.217.57 -P2881 -uroot -p
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[hnwyllmm]

A new DIMA has been created, and this DIMA is now closed.