Postgres 17 issue with uuid_nil

[nyarly]

While updating my development environment, I (casually) upgraded my Postgres to 17; the sqlxmq migrations failed with an "undefined function: uuid_nil" error at https://github.com/Diggsey/sqlxmq/blob/master/migrations/20210316025847_setup.up.sql#L54. Running the migration directly in psql suggested there was something about inlining a function as the context of the error.

I'm sorry, I should have captured the error text at the time; I wound up rolling back to postgresql_15 for now. More than anything I'm providing this as a heads up - there's a change in behavior in newer PostgreSQL that breaks the mq setup migration. select uuid_nil() in the same database worked fine, so I'm unclear what the issue is.

[script-sorcerer]

I encountered the same problem, changed the call uuid_nil() to public.uuid_nil(), and the migration worked on version 17.