From 1bcd161624534836f3f7c9bdd5cebe4d297b8aaf Mon Sep 17 00:00:00 2001
From: Mantas Kantautas <mantas.kantautas@gmail.com>
Date: Wed, 28 Oct 2026 20:03:18 +0200
Subject: [PATCH] fix(mysql): format FOR UPDATE as a clause

---
 src/languages/mysql/mysql.formatter.ts |  1 +
 test/mysql.test.ts                     | 27 ++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/src/languages/mysql/mysql.formatter.ts b/src/languages/mysql/mysql.formatter.ts
index c5e2ff840a..c3264469eb 100644
--- a/src/languages/mysql/mysql.formatter.ts
+++ b/src/languages/mysql/mysql.formatter.ts
@@ -18,6 +18,7 @@ const reservedClauses = expandPhrases([
   'ORDER BY',
   'LIMIT',
   'OFFSET',
+  'FOR UPDATE',
   // Data manipulation
   // - insert:
   'INSERT [LOW_PRIORITY | DELAYED | HIGH_PRIORITY] [IGNORE] [INTO]',
diff --git a/test/mysql.test.ts b/test/mysql.test.ts
index e6bcd37af9..5ed34b4b02 100644
--- a/test/mysql.test.ts
+++ b/test/mysql.test.ts
@@ -114,4 +114,31 @@ describe('MySqlFormatter', () => {
       DROP DEFAULT;
     `);
   });
+
+  // Issue #1005
+  it('formats FOR UPDATE clause', () => {
+    expect(
+      format(`
+        SELECT * FROM users WHERE id = ? FOR UPDATE;
+        SELECT * FROM users WHERE id = ? FOR UPDATE SKIP LOCKED;
+      `)
+    ).toBe(dedent`
+      SELECT
+        *
+      FROM
+        users
+      WHERE
+        id = ?
+      FOR UPDATE;
+
+      SELECT
+        *
+      FROM
+        users
+      WHERE
+        id = ?
+      FOR UPDATE
+        SKIP LOCKED;
+    `);
+  });
 });