restore comment hint (useful for enumtype declaration)

src/Schema/AbstractSchemaManager.php

@@ -17,6 +17,7 @@
 use function array_map;
 use function array_values;
 use function count;
+use function preg_match;
 use function strtolower;
 
 /**
@@ -129,6 +130,21 @@
         );
     }
 
+    /**
+     * Given a table comment this method tries to extract a typehint for Doctrine Type, or returns
+     * the type given as default.
+     *
+     * @internal This method should be only used from within the AbstractSchemaManager class hierarchy.
+     */
+    public function extractDoctrineTypeFromComment(?string $comment, string $currentType): string
+    {
+        if ($comment !== null && preg_match('(\(DC2Type:(((?!\)).)+)\))', $comment, $match) === 1) {
+            return $match[1];
+        }
+
+        return $currentType;
+    }
+
     /**
      * Returns true if all the given tables exist.
      *

src/Schema/MySQLSchemaManager.php

@@ -133,6 +133,7 @@
         $precision = null;
 
         $type = $this->platform->getDoctrineTypeMapping($dbType);
+        $type = $this->extractDoctrineTypeFromComment($tableColumn['comment'] ?? null, $type);
 
         switch ($dbType) {
             case 'char':

src/Schema/OracleSchemaManager.php

@@ -135,6 +135,7 @@
         }
 
         $type = $this->platform->getDoctrineTypeMapping($dbType);
+        $type = $this->extractDoctrineTypeFromComment($tableColumn['comment'] ?? null, $type);
 
         switch ($dbType) {
             case 'number':

src/Schema/PostgreSQLSchemaManager.php

@@ -273,6 +273,7 @@
         }
 
         $type = $this->platform->getDoctrineTypeMapping($dbType);
+        $type = $this->extractDoctrineTypeFromComment($tableColumn['comment'] ?? null, $type);
 
         switch ($dbType) {
             case 'smallint':

src/Schema/SQLServerSchemaManager.php

@@ -118,6 +118,7 @@ protected function _getPortableTableColumnDefinition(array $tableColumn): Column
         }
 
         $type = $this->platform->getDoctrineTypeMapping($dbType);
+        $type = $this->extractDoctrineTypeFromComment($tableColumn['comment'] ?? null, $type);
 
         $options = [
             'fixed'         => $fixed,

src/Schema/SQLiteSchemaManager.php

@@ -241,7 +241,9 @@
             $unsigned = true;
         }
 
-        $type    = $this->platform->getDoctrineTypeMapping($dbType);
+        $type = $this->platform->getDoctrineTypeMapping($dbType);
+        $type = $this->extractDoctrineTypeFromComment($tableColumn['comment'] ?? null, $type);
+
         $default = $tableColumn['dflt_value'];
         if ($default === 'NULL') {
             $default = null;