From 4f4146266ee7b1d1607a2b53c0425a57f288b787 Mon Sep 17 00:00:00 2001
From: Chris Bandy <bandy.chris@gmail.com>
Date: Sat, 4 Jul 2026 03:19:18 +0000
Subject: [PATCH] Add missing unsafe on GUC hook registration

As documented, these functions are unsafe because the caller must apply
`pg_guard` to the arguments.
---
 pgrx/src/guc.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pgrx/src/guc.rs b/pgrx/src/guc.rs
index dd25b43a3..99c1f4e8d 100644
--- a/pgrx/src/guc.rs
+++ b/pgrx/src/guc.rs
@@ -526,7 +526,7 @@ impl GucRegistry {
     /// Any hook function that might panic must be marked with `#[pg_guard]` to ensure proper
     /// conversion of Rust panics into PostgreSQL errors.
     ///
-    pub fn define_float_guc_with_hooks(
+    pub unsafe fn define_float_guc_with_hooks(
         name: &'static CStr,
         short_description: &'static CStr,
         long_description: &'static CStr,