Enabling statement capture with an environment variable in pymongo

We would like to capture statements with pymongo instrumentation by relying on auto-instrumentation only with no changes to the code. It is technically possible with the existing instrumentation library but by default it has capture_statement=False, hence auto-instrumented code does not capture statements. This is contrary to sqlalchemy where statements get captured by default.

It would be nice to at least make this possible with an environment variable, e.g. OTEL_PYTHON_PYMONGO_STATEMENT_CAPTURE=true. I went through OTel spec and some examples but I couldn't find an existing example or a similar implementation.

Would such a change be considered for merging into main branch?

In general, I think for all DB-like instrumentation libraries such a flag could be a nice addition.

Start with the existing pymongo instrumentation and its capture_statement option, then compare how SQLAlchemy instrumentation handles statement capture by default. Check the auto-instrumentation path and its tests for environment-based configuration. Done means an environment variable such as OTEL_PYTHON_PYMONGO_STATEMENT_CAPTURE enables statement capture without application code changes.