dynamodb attributes are in aws namespace instead db

[Flarna]

The span attributes for dynamodb are currently in aws namespace.

Other databases like mondodb or mssql have their special attributes in the db namespace.

At other places like cloud.region vendor namespaces are also replaced/avoided by a generic namespace.

Should the dynamodb attributes moved to db namespace?

[Oberon00]

I think it's kind of a wash. All aws-API-specific attributes start with aws., all db-related ones with db.. You can't have both. There are some remarks regarding use of db.* e.g. at open-telemetry/opentelemetry-specification#1422 (comment)

[joaopgrassi]

This was closed by mistake by the stale bot. Re-opening

[joaopgrassi]

fyi @trask

[trask]

I'd vote for the db.* prefix to be given precedence since that seems like the more important grouping from semantic convention perspective.

[trask]

even if we aren't targeting dynamodb as part of initial database semconv stability, I think we should make this change as part of the initial database semconv stability process so that this breaking change could benefit from being grouped with the other breaking changes related to stabilization