Add function uuidv7(timestamp_offset)

[sergeyprokhorenko]

Large companies have a need for function for parallel generating UUIDv7 keys in Greenplum ASAP. The implementation can be found here: https://commitfest.postgresql.org/47/4388/

[ayleen]

Hello Sergey Prokhorenko,

Thank you for your request and for sharing the link to implementing parallel UUIDv7 generation in Greenplum. We greatly appreciate your help and contribution to developing our product.

Our team will carefully review your suggestion, and if we find that it meets our needs, we will consider implementing it in future releases.

Once again, thank you for your contribution!