On a Debian 10 VM I have PG 11. In /etc/postgresql/11/main/postgresql.conf, I see the line:

datestyle = 'iso, dmy'

This seems to indicate that the information given in tables 8.14 & 8.15 of https://www.postgresql.org/docs/current/datatype-datetime.html is not case sensitive.

Regards,

John Davies

In reply to Re: What defines the output format of a Postgres Timestamp by davies
in thread What defines the output format of a Postgres Timestamp by Skeeve

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