https://blog.anayrat.info/en/2017/11/26/postgresql---jsonb-and-statistics/ https://blog.anayrat.info/en/2017/11/26/postgresql---jsonb-a... explains this problem

https://blog.anayrat.info/en/2017/11/26/postgresql---jsonb-and-statistics/ https://blog.anayrat.info/en/2017/11/26/postgresql---jsonb-a... explains this problem in more detail.