https://www.postgresql.org/docs/12/limits.html https://www.postgresql.org/docs/12/limits.html > identifier length 63 bytes can be increased by recompiling Post

https://www.postgresql.org/docs/12/limits.html https://www.postgresql.org/docs/12/limits.html > identifier length 63 bytes can be increased by recompiling PostgreSQL Maybe they compiled their postgres with a different limit? Just a guess I, haven't tried it.