A software team faced a critical issue with a primary key limit on their calendar application, which was approaching the maximum value for a signed 32-bit integer. To avoid breaking customer integrations, they implemented a temporary hack by setting the sequence to utilize the negative range of integers, buying them time to transition to a more robust solution while managing technical debt responsibly. Ultimately, the quick decision allowed for a smooth transition and effective communication with customers.

uuidv47 enables the storage of sortable UUIDv7 in databases while presenting a UUIDv4-like facade at the API level. It employs a deterministic and invertible mapping through a keyed SipHash-2-4 stream, ensuring security and compatibility with RFC standards. The library includes a PostgreSQL extension and offers full testing and performance benchmarks.