From 96732647dbcef4b7f5b181c59d3e6feae1ff8d7d Mon Sep 17 00:00:00 2001
From: campbell-m <87438215+campbell-m@users.noreply.github.com>
Date: Sat, 20 Jul 2024 12:21:49 +0100
Subject: [PATCH] Fix TypeError

---
 web/lib/MRBS/DB_pgsql.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/web/lib/MRBS/DB_pgsql.php b/web/lib/MRBS/DB_pgsql.php
index 91fb8f039c..46e19f3a7e 100644
--- a/web/lib/MRBS/DB_pgsql.php
+++ b/web/lib/MRBS/DB_pgsql.php
@@ -393,8 +393,10 @@ public function syntax_limit(int $count, int $offset) : string
   public function syntax_timestamp_to_unix(string $fieldname) : string
   {
     // A PostgreSQL timestamp can be a float.  We need to round it
-    // to the nearest integer.
-    return " ROUND(DATE_PART('epoch', $fieldname)) ";
+    // to the nearest integer.  Note that ROUND still returns a float type
+    // even though the value is an integer, so we need to cast it as well.
+    // (But the casting may round as well?  If so the round is redundant.)
+    return " CAST(ROUND(DATE_PART('epoch', $fieldname)) AS integer) ";
   }