[C++][FlightRPC] Fix ODBC tests for MacOS

[justing-bq]

Describe the bug, including details regarding any error messages, version, and platform.

ODBC tests do not yet pass on MacOS.

Fix all remaining ODBC tests for MacOS.

Component(s)

C++, FlightRPC

[vanshaj2023]

Hi! I'd like to work on this issue.

Implementation Approach:

From reviewing the codebase, I noticed there's already a comment in odbc_handle.h (L56-57) that mentions exception handling issues on macOS where DriverException doesn't properly catch subclass exceptions. The main areas I plan to investigate:

1. Exception Handling: Fix the try-catch blocks in ODBCHandle::Execute() to properly catch subclass exceptions on macOS (AuthenticationException, NullWithoutIndicatorException)

2. Test Environment Setup: Review test fixture initialization in odbc_test_suite.cc - particularly the ODBCMockTestBase::SetUp() and remote test base classes to ensure proper connection/teardown on macOS

3. Platform-Specific Handling: Check if there are any Linux/Windows-specific assumptions in the test code that break on macOS (e.g., buffer size calculations, string encoding differences)

4. CMake Configuration: Verify ODBC library linking in CMakeLists.txt works correctly for macOS

Would you be able to assign this issue to me? Also, does this implementation approach sound right, or is there something specific about the MacOS failures I should focus on first? Any guidance on which tests are currently failing would be helpful.

Thanks!

[kou]

Issue resolved by pull request 49267
#49267