Rework handling quoted object names and reserved SQL keywords

src/Driver/AbstractMySQLDriver.php

@@ -12,7 +12,6 @@
 use Doctrine\DBAL\Platforms\MariaDB1010Platform;
 use Doctrine\DBAL\Platforms\MariaDB1060Platform;
 use Doctrine\DBAL\Platforms\MariaDBPlatform;
-use Doctrine\DBAL\Platforms\MySQL84Platform;
 use Doctrine\DBAL\Platforms\MySQLPlatform;
 use Doctrine\DBAL\ServerVersionProvider;
 
@@ -46,10 +45,6 @@ public function getDatabasePlatform(ServerVersionProvider $versionProvider): Abs
             return new MariaDBPlatform();
         }
 
-        if (version_compare($version, '8.4.0', '>=')) {
-            return new MySQL84Platform();
-        }
-
         return new MySQLPlatform();
     }
 

src/Platforms/AbstractMySQLPlatform.php

@@ -7,8 +7,6 @@
 use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\Exception;
 use Doctrine\DBAL\Exception\InvalidColumnType\ColumnValuesRequired;
-use Doctrine\DBAL\Platforms\Keywords\KeywordList;
-use Doctrine\DBAL\Platforms\Keywords\MySQLKeywords;
 use Doctrine\DBAL\Schema\AbstractAsset;
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
 use Doctrine\DBAL\Schema\Index;
@@ -756,11 +754,6 @@ protected function initializeDoctrineTypeMappings(): void
         ];
     }
 
-    protected function createReservedKeywordsList(): KeywordList
-    {
-        return new MySQLKeywords();
-    }
-
     /**
      * {@inheritDoc}
      *

src/Platforms/AbstractPlatform.php

@@ -16,7 +16,6 @@
 use Doctrine\DBAL\LockMode;
 use Doctrine\DBAL\Platforms\Exception\NoColumnsSpecifiedForTable;
 use Doctrine\DBAL\Platforms\Exception\NotSupported;
-use Doctrine\DBAL\Platforms\Keywords\KeywordList;
 use Doctrine\DBAL\Schema\AbstractSchemaManager;
 use Doctrine\DBAL\Schema\Column;
 use Doctrine\DBAL\Schema\ForeignKeyConstraint;
@@ -73,11 +72,6 @@ abstract class AbstractPlatform
     /** @var string[]|null */
     protected ?array $doctrineTypeMapping = null;
 
-    /**
-     * Holds the KeywordList instance for the current platform.
-     */
-    protected ?KeywordList $_keywords = null;
-
     /**
      * Returns the SQL snippet that declares a boolean column.
      *
@@ -2122,20 +2116,6 @@ public function rollbackSavePoint(string $savepoint): string
         return 'ROLLBACK TO SAVEPOINT ' . $savepoint;
     }
 
-    /**
-     * Returns the keyword list instance of this platform.
-     */
-    final public function getReservedKeywordsList(): KeywordList
-    {
-        // Store the instance so it doesn't need to be generated on every request.
-        return $this->_keywords ??= $this->createReservedKeywordsList();
-    }
-
-    /**
-     * Creates an instance of the reserved keyword list of this platform.
-     */
-    abstract protected function createReservedKeywordsList(): KeywordList;
-
     /**
      * Quotes a literal string.
      * This method is NOT meant to fix SQL injections!

src/Platforms/DB2Platform.php

@@ -6,8 +6,6 @@
 
 use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\Platforms\Exception\NotSupported;
-use Doctrine\DBAL\Platforms\Keywords\DB2Keywords;
-use Doctrine\DBAL\Platforms\Keywords\KeywordList;
 use Doctrine\DBAL\Schema\ColumnDiff;
 use Doctrine\DBAL\Schema\DB2SchemaManager;
 use Doctrine\DBAL\Schema\Identifier;
@@ -591,11 +589,6 @@ public function supportsSavepoints(): bool
         return false;
     }
 
-    protected function createReservedKeywordsList(): KeywordList
-    {
-        return new DB2Keywords();
-    }
-
     public function createSchemaManager(Connection $connection): DB2SchemaManager
     {
         return new DB2SchemaManager($connection, $this);