From cec9e981a52f9a4e2c2b823dc45d2ce66fb7404c Mon Sep 17 00:00:00 2001
From: Taylor Otwell <taylor@laravel.com>
Date: Wed, 20 Dec 2023 08:23:33 -0600
Subject: [PATCH] Revert "[10.x] Drop the primary key if it exists when adding
 a new primary key (#49392)" (#49448)

This reverts commit be24812761ab23deaea9b8fe1b28933589e89a07.
---
 src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php | 2 +-
 tests/Database/DatabaseMySqlSchemaGrammarTest.php        | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php b/src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php
index aaafa322860f..1f64a7c25aa7 100755
--- a/src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php
+++ b/src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php
@@ -406,7 +406,7 @@ public function compileChange(Blueprint $blueprint, Fluent $command, Connection
      */
     public function compilePrimary(Blueprint $blueprint, Fluent $command)
     {
-        return sprintf('alter table %s drop index if exists `PRIMARY`, add primary key %s(%s)',
+        return sprintf('alter table %s add primary key %s(%s)',
             $this->wrapTable($blueprint),
             $command->algorithm ? 'using '.$command->algorithm : '',
             $this->columnize($command->columns)
diff --git a/tests/Database/DatabaseMySqlSchemaGrammarTest.php b/tests/Database/DatabaseMySqlSchemaGrammarTest.php
index 7898be1b1d1e..bbe69fb2d466 100755
--- a/tests/Database/DatabaseMySqlSchemaGrammarTest.php
+++ b/tests/Database/DatabaseMySqlSchemaGrammarTest.php
@@ -345,7 +345,7 @@ public function testAddingPrimaryKey()
         $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
 
         $this->assertCount(1, $statements);
-        $this->assertSame('alter table `users` drop index if exists `PRIMARY`, add primary key (`foo`)', $statements[0]);
+        $this->assertSame('alter table `users` add primary key (`foo`)', $statements[0]);
     }
 
     public function testAddingPrimaryKeyWithAlgorithm()
@@ -355,7 +355,7 @@ public function testAddingPrimaryKeyWithAlgorithm()
         $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
 
         $this->assertCount(1, $statements);
-        $this->assertSame('alter table `users` drop index if exists `PRIMARY`, add primary key using hash(`foo`)', $statements[0]);
+        $this->assertSame('alter table `users` add primary key using hash(`foo`)', $statements[0]);
     }
 
     public function testAddingUniqueKey()