Since the advice is that this question is more relevant to postgresql, have continued to ask further, there: https://www.postgresql.org/message-id/rzszV54MMnHHEeW_3AqpkJKS_lMTEZUq_D6WR9JyfSMlgX76QeWjgy_H8YzslU2hvQef-XR2YBSNCMZS4CaJABdZp3uRR7FTU9MBqgLdEhw%3D%40protonmail.com alternative: https://www.mail-archive.com/pgsql-general@xxxxxxxxxxxxxxxxxxxx/msg26909.html