Any user account with CREATE privilege can install module(s). Note: The default node id (the last 12 digits in the UUID) is generated once, randomly, on process startup, and then remains unchanged for the duration of the process. Note: the description for this image is longer than the Hub length limit of 25000, so has been trimmed.
PostgreSQL includes one function to generate a UUID: This function returns a version 4 (random) UUID. A universally unique identifier ( UUID) is a 128-bit label used for information in computer systems. Discrepancies between Python versions bundled with Postgres on various operating systems have also caused some issues - universally resolved with a careful inspection of the Postgres configuration and the install logs, but annoying. Each data type has an external representation determined by its input.
Cheers postgres=# CREATE EXTENSION earthdistance CASCADE ERROR: could not open. The uuid extension is installed and enabled. Postgres uuid v6 I'm a big fan of UUIDs in general and especially for database record identifiers.