From cd1b202612e3a3b11cf1aaf77cd9243a176b030e Mon Sep 17 00:00:00 2001
From: Dull Bananas <dull.bananas0@gmail.com>
Date: Thu, 19 Dec 2024 13:30:05 -0700
Subject: [PATCH] make random_smallint function work in postgresql 16

---
 .../2024-12-18-200602_optimize_get_random_community/up.sql  | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/migrations/2024-12-18-200602_optimize_get_random_community/up.sql b/migrations/2024-12-18-200602_optimize_get_random_community/up.sql
index 8157cc6cb..64c8af4e1 100644
--- a/migrations/2024-12-18-200602_optimize_get_random_community/up.sql
+++ b/migrations/2024-12-18-200602_optimize_get_random_community/up.sql
@@ -5,8 +5,10 @@
 CREATE FUNCTION random_smallint ()
     RETURNS smallint
     LANGUAGE sql
-    VOLATILE PARALLEL RESTRICTED RETURN random (
-        -32768, 32767
+    VOLATILE PARALLEL RESTRICTED RETURN
+    -- https://stackoverflow.com/questions/1400505/generate-a-random-number-in-the-range-1-10/1400752#1400752
+    -- (`+ 1` makes the upper bound inclusive)
+    trunc ((random() * (32768 + 32767 + 1)) - 32768
 );
 
 ALTER TABLE community