private void processUpsert()

in flink-connector-elasticsearch-base/src/main/java/org/apache/flink/connector/elasticsearch/table/RowElasticsearchEmitter.java [105:121]


    private void processUpsert(RowData row, RequestIndexer indexer) {
        final byte[] document = serializationSchema.serialize(row);
        final String key = createKey.apply(row);
        if (key != null) {
            final UpdateRequest updateRequest =
                    new UpdateRequest(indexGenerator.generate(row), documentType, key)
                            .doc(document, contentType)
                            .upsert(document, contentType);
            indexer.add(updateRequest);
        } else {
            final IndexRequest indexRequest =
                    new IndexRequest(indexGenerator.generate(row), documentType)
                            .id(key)
                            .source(document, contentType);
            indexer.add(indexRequest);
        }
    }