perf: Avoid redundant SQL casts

[TrevorBergeron]

Thank you for opening a Pull Request! Before submitting your PR, there are a few things you can do to make sure it goes smoothly:

• Make sure to open an issue as a bug/issue before writing your code! That way we can discuss the change, evaluate designs, and agree on the general idea
• Ensure the tests and linter pass
• Code coverage does not decrease (if any source code was changed)
• Appropriate docs were updated (if necessary)

Fixes #<issue_number_goes_here> 🦕

[tswast]

Failed e2e test: FAILED tests/system/small/functions/test_remote_function.py::test_skip_bq_connection_check likely unrelated.

[tswast]

Thanks!