[Windows] to_char function returns empty result in mysqltest case expr.expr_to_char

[chyujing]

Environment

• Version: Not specified (not a temporary RD-provided version)
• Reproducibility: Stable/Consistent

Description

There is an issue with the to_char function when running the mysqltest case expr.expr_to_char on a Windows system. The function returns an empty result, whereas it produces the expected output on Linux.

Steps to Reproduce

1. Connect to the database using the provided connection string:

   mysql -uroot -h -P 2881

2. Run the mysqltest case expr.expr_to_char.

Observed Behavior (Windows): The function returns an empty result.

Expected Behavior (Linux): The function returns the correct, non-empty result.

Additional Context

• The specific deployment information, connection strings for the problematic tenant and sys tenant, and any other environment details were not fully provided in the original report.
• The issue is stable and consistently reproducible on Windows.