I can confirm on the performance benefits. I wanted to start with uuidv7 for a new DB earlier this year, so I put together a function to use in the meantime. Once the function is available natively, we'll just migrate to use it instead.

For anyone interested:

CREATE FUNCTION uuidv7() RETURNS uuid AS $$ -- Get base random UUID and overlay timestamp select encode( set_bit( set_bit( overlay(uuid_send(gen_random_uuid()) placing substring(int8send((extract(epoch from clock_timestamp())*1000)::bigint) from 3) from 1 for 6), 52, 1), -- Set version bits to 0111 53, 1), 'hex')::uuid; $$ LANGUAGE sql volatile;