uuidv7() — PostgreSQL UUID function

Summary

uuidv7 is a PostgreSQL built-in function in the UUID Functions group. PostgreSQL’s system catalog (pg_proc) describes it as: “generate UUID version 7”.

Signature

uuidv7() → uuid

Argument and return types are taken from the pg_proc catalog; internal type names are shown using their readable SQL spellings (for example int4 is shown as integer). (Derived from the catalog — see the linked reference for the canonical documentation.)

Classification

• Category: UUID Functions
• Kind: Function
• Volatility: VOLATILE — Marked VOLATILE — its result can change even within a single statement (for example, it may depend on time, sequences or the current session).
• Returns: uuid

Example

Illustrative form (replace placeholder values with your own data):

SELECT uuidv7();

The example above is illustrative and is meant to show calling syntax only; consult the linked PostgreSQL documentation for exact semantics, edge cases and accepted argument combinations.

Version applicability

Based on the catalog across releases, uuidv7 first appears in PostgreSQL 18. It is present in: 18, 19.

Related & references

• PostgreSQL built-in function index
• More UUID Functions

Reference: PostgreSQL documentation — UUID Functions.