From 3e38e06f364b6cad9c7a3aba92be5fe08caff684 Mon Sep 17 00:00:00 2001
From: Ryan Mitchell <ryan@thoughtcollective.com>
Date: Wed, 18 Mar 2026 11:51:54 +0000
Subject: [PATCH] Postgres should use timestamp not datetime in casts

---
 src/QueriesJsonColumns.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/QueriesJsonColumns.php b/src/QueriesJsonColumns.php
index 8a812f45..7cbc72f9 100644
--- a/src/QueriesJsonColumns.php
+++ b/src/QueriesJsonColumns.php
@@ -69,6 +69,10 @@ protected function toCast(Field $field): string
             default => null,
         };
 
+        if ($cast === 'datetime' && str_contains(get_class($this->builder->getConnection()->getQueryGrammar()), 'PostgresGrammar')) {
+            $cast = 'timestamp';
+        }
+
         // Date Ranges are dealt with a little bit differently.
         if ($field->type() === 'date' && $field->get('mode') === 'range') {
             $cast = "range_{$cast}";