Skip test with MySQL

Author: natanfelles

src/Manipulation/Traits/Explain.php

@@ -39,7 +39,7 @@ trait Explain
     /**
      * EXPLAIN provides information about statements.
      *
-     * @param string|null $option
+     * @param string|null $option WARNING: This feature is MariaDB only. It is not compatible with MySQL.
      *
      * @see https://mariadb.com/docs/server/reference/sql-statements/administrative-sql-statements/analyze-and-explain-statements/explain
      *

tests/Manipulation/SelectTest.php

@@ -311,6 +311,9 @@ public function testExplain() : void
 
     public function testExplainWithOption() : void
     {
+        if (\getenv('DB_IMAGE') === 'mysql') {
+            $this->markTestSkipped();
+        }
         $results = $this->select->from('t1')->where('c1', '=', 1)->explain(Select::EXP_EXTENDED);
         foreach ($results as $result) {
             self::assertInstanceOf(Explain::class, $result);