--- a/Framework/Plugins/IndexBackend.cpp	Thu Apr 06 19:09:51 2023 +0200
+++ b/Framework/Plugins/IndexBackend.cpp	Fri Apr 07 15:28:47 2023 +0200
@@ -2626,6 +2626,12 @@
                           "INSERT INTO Labels VALUES(${id}, ${label}) ON CONFLICT DO NOTHING"));
         break;
 
+      case Dialect_SQLite:
+        statement.reset(new DatabaseManager::CachedStatement(
+                          STATEMENT_FROM_HERE, manager,
+                          "INSERT OR IGNORE INTO Labels VALUES(${id}, ${label})"));
+        break;
+
       default:
         throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
     }

--- a/SQLite/Plugins/SQLiteIndex.cpp	Thu Apr 06 19:09:51 2023 +0200
+++ b/SQLite/Plugins/SQLiteIndex.cpp	Fri Apr 07 15:28:47 2023 +0200
@@ -166,6 +166,23 @@
 
       t.Commit();
     }    
+
+    {
+      DatabaseManager::Transaction t(manager, TransactionType_ReadWrite);
+
+      if (!t.GetDatabaseTransaction().DoesTableExist("Labels"))
+      {
+        t.GetDatabaseTransaction().ExecuteMultiLines(
+          "CREATE TABLE Labels("
+          "  id INTEGER REFERENCES Resources(internalId) ON DELETE CASCADE,"
+          "  label TEXT NOT NULL,"
+          "  PRIMARY KEY(id, label));"
+          "CREATE INDEX LabelsIndex1 ON Labels(id);"
+          "CREATE INDEX LabelsIndex2 ON Labels(label);");
+      }
+
+      t.Commit();
+    }    
   }
 
 

--- a/SQLite/Plugins/SQLiteIndex.h	Thu Apr 06 19:09:51 2023 +0200
+++ b/SQLite/Plugins/SQLiteIndex.h	Fri Apr 07 15:28:47 2023 +0200
@@ -62,7 +62,7 @@
     // New primitive since Orthanc 1.12.0
     virtual bool HasLabelsSupport() const ORTHANC_OVERRIDE
     {
-      return false;
+      return true;
     }
   };
 }