From 402f2f2151c8b6207815e4ebaba34d7d8f0e4b23 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 6 Jun 2026 15:10:31 +0000
Subject: [PATCH 1/2] Coerce partial index rename test for SQL Server

---
 test/cases/coerced_tests.rb | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/test/cases/coerced_tests.rb b/test/cases/coerced_tests.rb
index 3f553579d..f495a5776 100644
--- a/test/cases/coerced_tests.rb
+++ b/test/cases/coerced_tests.rb
@@ -77,6 +77,26 @@ def test_partial_index_coerced
   end
 end
 
+module ActiveRecord
+  class Migration::IndexTest < ActiveRecord::TestCase
+    # SQL Server requires an explicit truthy comparison for BIT columns.
+    coerce_tests! :test_rename_index_preserves_where_clause
+    def test_rename_index_preserves_where_clause_coerced
+      skip unless connection.supports_partial_index?
+
+      # Keep the names short to make Oracle and similar behave.
+      connection.add_index(table_name, [:foo], name: "old_idx", where: "administrator = 1")
+      old_where = connection.indexes(table_name).find { |i| i.name == "old_idx" }.where
+
+      connection.rename_index(table_name, "old_idx", "new_idx")
+
+      new_index = connection.indexes(table_name).find { |i| i.name == "new_idx" }
+      assert_not_nil new_index
+      assert_equal old_where, new_index.where
+    end
+  end
+end
+
 module ActiveRecord
   class AdapterTest < ActiveRecord::TestCase
     # Legacy binds are not supported.

From fc1f8f940c872f8fe8722adb08d3ec9bf494df42 Mon Sep 17 00:00:00 2001
From: Aidan Haran <aidanharan@yahoo.com>
Date: Sun, 7 Jun 2026 11:50:09 +0100
Subject: [PATCH 2/2] Cleanup

---
 test/cases/coerced_tests.rb | 1 -
 1 file changed, 1 deletion(-)

diff --git a/test/cases/coerced_tests.rb b/test/cases/coerced_tests.rb
index f495a5776..348856828 100644
--- a/test/cases/coerced_tests.rb
+++ b/test/cases/coerced_tests.rb
@@ -2059,7 +2059,6 @@ class UnsafeRawSqlTest < ActiveRecord::TestCase
   test "order: allows nested functions" do
     ids_expected = Post.order(Arel.sql("author_id, len(trim(title))")).pluck(:id)
 
-    # $DEBUG = true
     ids = Post.order("author_id, len(trim(title))").pluck(:id)
 
     assert_equal ids_expected, ids