Pipeline to update the nested documents

Elastic Stack Logstash
1

Hi everyone. I'm currently syncing the RDB and Elasticsearch via JDBC plugin databases.

Index looks like (names are replaced with readable AAA, BBB and CCC) :

PUT indexname
{ 
...
	"mappings" : {
		"properties" : {
			"id" : {   
				"type" : "keyword"
			},
			"aaa" : {
				"type" : "nested",
				"dynamic" : "false",
				"properties" : {
					"bbb_id" : {   
						 "type" : "keyword"
					},
					"bbb" : {
						"type" : "nested",
						"dynamic" : "false",
						"properties" : {
							"ccc_id" : {   
								"type" : "keyword"
							},
							"ccc" : {   
								"type" : "keyword"
							}
						}
					}
				}
			}
		}
	}
}

My logstash filter- and output plugins look like:

filter {
	aggregate {
		task_id => "%{[aaa][bbb_id]}"
		code => "
			map['bbb_id']	||= event.get('sqlfield1')
			map['bbb']		||= []
			map['bbb']		<< {
				'ccc_id'		=> event.get('sqlfield2'),	
				'ccc'			=> event.get('sqlfield3'),
			}
			event.cancel()
		"
		push_previous_map_as_event => true
		timeout => 5
	}
}
output {
    elasticsearch {
        index => "indexname"
        document_id => "%{[aaa][bbb_id]}"
        hosts => ["localhost:9200"]
        action => "update"
        doc_as_upsert => true
    }
}

The field BBB is not populated with the nested documents though. Might you please tell where there's a mistake?

2

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