[Bug]: mo-tester crash on checking result.

[fengttt]

Is there an existing issue for the same bug?

• I have checked the existing issues.

Environment

- Version or commit-id (e.g. v0.1.0 or 8b23a93):
- Hardware parameters:
- OS type:
- Others:

Actual Behavior

2025-07-17 11:14:07 INFO Executor:37 - Start to execute the script file[/Users/fengttt/m/matrixone/test/distributed/cases/snapshot/snapshot_restore_system_table.sql] now, and it will take a few moment,pleas wait......
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
at io.mo.result.RSMetaData.getColumnLable(RSMetaData.java:38)
at io.mo.result.RSMetaData.equals(RSMetaData.java:94)
at io.mo.result.RSSet.equals(RSSet.java:159)
at io.mo.result.StmtResult.equals(StmtResult.java:106)
at io.mo.cases.SqlCommand.checkResult(SqlCommand.java:206)
at io.mo.db.Executor.run(Executor.java:186)
at io.mo.Tester.run(Tester.java:207)
at io.mo.Tester.run(Tester.java:216)
at io.mo.Tester.main(Tester.java:154)

Expected Behavior

No response

Steps to Reproduce

Additional information

No response

[fengttt]

It seems mo-tester crash due to expected result is wrong. In the crash, we have

select name from t

And the expected result file has the following expected,

name   authenticationstring
foo

So the expected file is wrong -- it has an extra column. But it should not crash mo-tester. It should report the diff between running result and expected. It is dev's job to find out about this problem and fix expected result file.