Component(s)

exporter/elasticsearch

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

Phenomenon

Due to some inevitable special circumstances, multiple identical spans may enter es exporter, and eventually multiple redundant documents can be seen in ES

The reasons for this phenomenon

In exporter.go, when the pushTraceRecord function returns
bulkIndexerSession.Add(ctx, index.Index, "", "", buf, nil, docappender.ActionCreate),
the docID field is an empty string, which causes the downstream to automatically generate a non-repetitive docID to write to ES. Therefore, multiple identical spans will correspond to multiple docIDs, thus being written to ES multiple times

Describe the solution you'd like

Feature Request

Could a configuration item be added to support "docID generated based on SpanID", so that multiple identical spans can only correspond to one document in ES? This is very important to us. Appreciate!

Describe alternatives you've considered

No response

Additional context

No response

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