fix(dump): pass --column-statistics=0 for MySQL 8 mysqldump on MariaDB

When the server is MariaDB but only MySQL 8's mysqldump is installed
(e.g. dockware/web), the dump aborted with "Unknown table
'COLUMN_STATISTICS' in information_schema (1109)".

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/Service/DumpBinaryLocator.php

@@ -6,6 +6,7 @@ use AeonDumpManager\Service\Exception\DumpBinaryNotFoundException;
 use Doctrine\DBAL\Connection;
 use Shopware\Core\System\SystemConfig\SystemConfigService;
 use Symfony\Component\Process\ExecutableFinder;
+use Symfony\Component\Process\Process;
 
 /**
  * Picks mariadb-dump/mysqldump depending on what the configured DB connection
@@ -38,6 +39,19 @@ class DumpBinaryLocator
         throw DumpBinaryNotFoundException::create($binaryNames);
     }
 
+    /**
+     * @return list<string> client-specific flags for the located binary
+     */
+    public function extraArguments(string $binary): array
+    {
+        $version = new Process([$binary, '--version']);
+        $version->run();
+
+        return MySqlVariant::needsColumnStatisticsOff($version->getOutput(), $this->isMariaDb())
+            ? ['--column-statistics=0']
+            : [];
+    }
+
     private function isMariaDb(): bool
     {
         // Connection::getServerVersion() is private in the DBAL version this

src/Service/DumpService.php

@@ -173,6 +173,7 @@ class DumpService
             $binary,
             '--single-transaction',
             '--quick',
+            ...$this->dumpBinaryLocator->extraArguments($binary),
             '-h', (string) ($params['host'] ?? '127.0.0.1'),
             '-P', (string) ($params['port'] ?? 3306),
             '-u', (string) ($params['user'] ?? 'root'),

src/Service/MySqlVariant.php

@@ -14,4 +14,18 @@ class MySqlVariant
     {
         return stripos($serverVersion, 'mariadb') !== false;
     }
+
+    /**
+     * MySQL 8+ mysqldump queries information_schema.COLUMN_STATISTICS, which
+     * MariaDB lacks (error 1109); --column-statistics=0 skips it. MariaDB's own
+     * client (version string contains "MariaDB") and MySQL < 8 don't know the flag.
+     */
+    public static function needsColumnStatisticsOff(string $clientVersion, bool $serverIsMariaDb): bool
+    {
+        return $serverIsMariaDb
+            && !self::isMariaDb($clientVersion)
+            // MySQL < 8 prints "Ver 10.13 Distrib 5.7.x": the Distrib number is the real version.
+            && (preg_match('/Distrib (\d+)\./', $clientVersion, $m) === 1 || preg_match('/\bVer (\d+)\./', $clientVersion, $m) === 1)
+            && (int) $m[1] >= 8;
+    }
 }