How do I access the _id field in Painless?

Elastic Stack Elasticsearch
1

Every time I try something like this:

doc['_id'] + "/" + doc['site_code'].value
doc['_index'] + "/" + doc['site_code'].value
ctx._index + "/" + doc['site_code'].value

All shards crash???

Not very friendly. I'm trying a scripted filed via Kibana with latest hosting plan.

2

Hi @Tal_Weiss, I moved your post to elasticsearch category as I think that it can get a better answer here.

Thanks,
Igor