SNOW-2919973: SnowflakeRestful.fetch() leaks memory

[timgraham]

While developing https://github.com/Snowflake-Labs/django-snowflake, a Django test reveals that SnowflakeRestful.fetch() leaks memory due to an exception nested within the method.

[sfc-gh-sghosh]

Hi @timgraham ,

Thanks for raising the issue and the PR Could you mention the environment details, Python version, Snowflake Python connector version, and a minimal repro code.

[timgraham]

The issue isn't environment or Python version-specific. The latest connector version is affected. The reproducer is to run the Django test. I didn't provide a more minimal reproducer or add a test to the PR since the effort required would be disproportionate to the triviality of the fix. If you're unwilling to merge the PR without a test, I'll try to add one.

[sfc-gh-sghosh]

Hi @timgraham ,

Please add the test.