Add host parameter to query logging

[justinabrahms]

Issue Description

I would like to know which host I'm executing sql on when connecting to a larger cluster (e.g. read node or write node?). Ideally, the logging parameter in the options object would be passed more data, especially including the hostname.

Is your feature request related to a problem? Please describe.

I'd like to log which host was affected with a particular sql query, so I can trace slow response times to a particular host.

Describe the solution you'd like

Currently, we do something like myModel.findOne({... logging: mylogger }), but mylogger only gets (sql, time) as parameters. I'd like for it to get more information, at least host name.

Why should this be in Sequelize

Sequelize knows the database it's connecting to and is already calling out for logging.

Describe alternatives/workarounds you've considered

I've considered reaching around into the internals of the models code, but it just feels gross and like we'll be brittle on upgrades.

Additional context

n/A

Issue Template Checklist

Is this issue dialect-specific?

• No. This issue is relevant to Sequelize as a whole.
• Yes. This issue only applies to the following dialect(s): XXX, YYY, ZZZ

Would you be willing to resolve this issue by submitting a Pull Request?

• Yes, I have the time and I know how to start.
• Yes, I have the time but I don't know how to start, I would need guidance.
• No, I don't have the time, although I believe I could do it if I had the time...
• No, I don't have the time and I wouldn't even know how to start.

[github-actions]

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