doc: clarify that pgcrypto's gen_random_uuid calls core func.

Previously it was just marked as a duplicate of the core function.

Reported-by: Andreas Dijkman
Discussion: https://postgr.es/m/17349-24d61e214429e8c1@postgresql.org

Backpatch-through: 13

diff --git a/doc/src/sgml/pgcrypto.sgml b/doc/src/sgml/pgcrypto.sgml
index bbaa2691fe3038c01795ed409e0e7321943f36eb..b108511b4244158cc168f00282ec126d8d9c2dfb 100644 (file)
--- a/doc/src/sgml/pgcrypto.sgml
+++ b/doc/src/sgml/pgcrypto.sgml
@@ -1139,8 +1139,9 @@ gen_random_bytes(count integer) returns bytea
 gen_random_uuid() returns uuid
 
   
-   Returns a version 4 (random) UUID. (Obsolete, this function is now also
-   included in core PostgreSQL.)
+   Returns a version 4 (random) UUID. (Obsolete, this function
+   internally calls the core
+   function of the same name.)