Elasticsearch / Watcher - Transform script to extract duplicates (doc_count > 1)

watcher-transform-script-extract-duplicate.md

"transform": {
  "script": {
    "source": "return [ 'dups': ctx.payload.aggregations.my_buckets.buckets.stream().filter(t -> { return t.doc_count > 1 }).map(t -> { return ['key': t.key ] }).collect(Collectors.toList()) ]",
    "lang": "painless"
  }
}