Send extra credentials only in the initial request instead of every request

[hashhar]

Client should send extra credentials only on the initial request.

See https://github.com/trinodb/trino/issues/14364#issuecomment-1263432919 for more context.

[hashhar]

~I need to add either another issue template or allow non-templated issues to track such TODO items - it's more noise than information for such issues.~

Not needed, there's a Don’t see your issue here? Open a blank issue. button at the bottom already.

[aakashnand]

@hashhar I would like to take this. Could you please give me some pointers, to begin with? I have skimmed through client.py and auth.py but was not able to understand where we make the initial connection and how we check if it's an initial request?

[mdesmet]

@aakashnand: The initial request is the query submission, i.e. the POST statement, the subsequent GET statements or other API calls shouldn't include the extra credentials.

Let me know if this helps.