Issue #2742103 by ekes, dawehner, amateescu:...

Issue #2742103 by ekes, dawehner, amateescu: SqlContentEntityStorageSchema::getDedicatedTableSchema() ignores 'unique keys' from the schema definition

core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorageSchema.php

@@ -1837,6 +1837,24 @@ protected function getDedicatedTableSchema(FieldStorageDefinitionInterface $stor
       }
     }
 
+    // Add unique keys.
+    foreach ($schema['unique keys'] as $index_name => $columns) {
+      $real_name = $this->getFieldIndexName($storage_definition, $index_name);
+      foreach ($columns as $column_name) {
+        // Unique keys can be specified as either a column name or an array with
+        // column name and length. Allow for either case.
+        if (is_array($column_name)) {
+          $data_schema['unique keys'][$real_name][] = array(
+            $table_mapping->getFieldColumnName($storage_definition, $column_name[0]),
+            $column_name[1],
+          );
+        }
+        else {
+          $data_schema['unique keys'][$real_name][] = $table_mapping->getFieldColumnName($storage_definition, $column_name);
+        }
+      }
+    }
+
     // Add foreign keys.
     foreach ($schema['foreign keys'] as $specifier => $specification) {
       $real_name = $this->getFieldIndexName($storage_definition, $specifier);

core/tests/Drupal/Tests/Core/Entity/Sql/SqlContentEntityStorageSchemaTest.php

@@ -820,6 +820,16 @@ public function testDedicatedTableSchema() {
           'length' => 32,
           'not null' => FALSE,
         ),
+        'area' => array(
+          'type' => 'int',
+          'unsigned' => TRUE,
+          'not null' => TRUE,
+        ),
+        'depth' => array(
+          'type' => 'int',
+          'unsigned' => TRUE,
+          'not null' => TRUE,
+        ),
       ),
       'foreign keys' => array(
         'color' => array(
@@ -829,8 +839,14 @@ public function testDedicatedTableSchema() {
           ),
         ),
       ),
-      'unique keys' => array(),
-      'indexes' => array(),
+      'unique keys' => array(
+        'area' => array('area'),
+        'shape' => array(array('shape', 10)),
+      ),
+      'indexes' => array(
+        'depth' => array('depth'),
+        'color' => array(array('color', 3)),
+      ),
     ));
 
     $field_storage = $this->storageDefinitions[$field_name];
@@ -905,11 +921,27 @@ public function testDedicatedTableSchema() {
             'length' => 32,
             'not null' => FALSE,
           ),
+          $field_name . '_area' => array(
+            'type' => 'int',
+            'unsigned' => TRUE,
+            'not null' => TRUE,
+          ),
+          $field_name . '_depth' => array(
+            'type' => 'int',
+            'unsigned' => TRUE,
+            'not null' => TRUE,
+          ),
         ),
         'primary key' => array('entity_id', 'deleted', 'delta', 'langcode'),
         'indexes' => array(
           'bundle' => array('bundle'),
           'revision_id' => array('revision_id'),
+          $field_name . '_depth' => array($field_name . '_depth'),
+          $field_name . '_color' => array(array($field_name . '_color', 3)),
+        ),
+        'unique keys' => array(
+           $field_name . '_area' => array($field_name . '_area'),
+           $field_name . '_shape' => array(array($field_name . '_shape', 10)),
         ),
         'foreign keys' => array(
           $field_name . '_color' => array(