diff --git a/database/create-schema.sql b/database/create-schema.sql
index eaa8c70..8df50e7 100644
--- a/database/create-schema.sql
+++ b/database/create-schema.sql
@@ -80,6 +80,20 @@ CREATE EXTENSION IF NOT EXISTS "uuid-ossp" WITH SCHEMA public;
 COMMENT ON EXTENSION "uuid-ossp" IS 'generate universally unique identifiers (UUIDs)';
 
 
+--
+-- Name: uuid_extract_timestamp(uuid); Type: FUNCTION; Schema: public; Owner: -
+--
+
+CREATE FUNCTION public.uuid_extract_timestamp(uuid_val uuid) RETURNS timestamp with time zone
+    LANGUAGE sql IMMUTABLE
+    AS $$
+    SELECT to_timestamp(
+        ('x' || LEFT(REPLACE(uuid_val::TEXT, '-', ''), 12))::BIT(48)::BIGINT
+        / 1000.0
+    );
+$$;
+
+
 --
 -- Name: uuid_v7(timestamp with time zone); Type: FUNCTION; Schema: public; Owner: -
 --