Revert change to AlterOperation for now

Signed-off-by: Kamil Tekiela <[email protected]>

Author: kamil-tekiela

src/Components/AlterOperation.php

@@ -271,11 +271,6 @@ final class AlterOperation implements Component
      */
     public $partitions;
 
-    /**
-     * Unparsed tokens.
-     */
-    public TokensList $unknown;
-
     /**
      * @param OptionsArray               $options    options of alter operation
      * @param Expression|string|null     $field      altered field
@@ -286,12 +281,12 @@ public function __construct(
         $options = null,
         $field = null,
         $partitions = null,
-        array $unknown = []
+        public array $unknown = []
     ) {
         $this->partitions = $partitions;
         $this->options = $options;
         $this->field = $field;
-        $this->unknown = new TokensList($unknown);
+        $this->unknown = $unknown;
     }
 
     /**
@@ -541,7 +536,7 @@ public static function build($component): string
             $ret .= $component->field . ' ';
         }
 
-        $ret .= $afterFieldsOptions . $component->unknown->build();
+        $ret .= $afterFieldsOptions . TokensList::buildFromArray($component->unknown);
 
         if (isset($component->partitions)) {
             $ret .= PartitionDefinition::buildAll($component->partitions);