attributes config in OTLPExporters

[Flarna]

• This only affects the JavaScript OpenTelemetry library
• This may affect other libraries, but I would like to get opinions here first

I'm a bit confused regarding the attributes?: SpanAttributes config in OTLP exporter.

The config is of type SpanAttributes but actually it seems they end up in Resource, see here and here and here

Is the type in the interface wrong or do the attributes end up at the wrong place?
Is this config required by spec?

As this is end user visible it's most likely good to clarify before the exporters are release as 1.x.

[vmarchaud]

I think this pre-date the ressource concept (a370a47#diff-1a3856739afae4654e870ec5308913f90261da0c0e589d8c1b27c84d6c6dab85R181) and was introduced orignally for adding span attributes which wasn't even used at the time. Then PR after PR the name stayed but ended up on the resource

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[dyladan]

I would prefer to remove as it is not part of the spec.