Parent-child query performance on ES 5.x

Elastic Stack Elasticsearch
1

Per https://www.elastic.co/guide/en/elasticsearch/guide/current/parent-child-performance.html#_global_ordinals_and_latency

Parent-child query is 5 - 10 times slower than nested query.

Since this guide is for ES 2.x, I am wondering if ES 5.x has improvement on parent-child query?

2

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