SQL style fix

application/src/main/java/org/thingsboard/server/service/install/SqlDatabaseUpgradeService.java

@@ -239,7 +239,7 @@ public class SqlDatabaseUpgradeService implements DatabaseEntitiesUpgradeService
                     schemaUpdateFile = Paths.get(installScripts.getDataDir(), "upgrade", "2.6.0", SCHEMA_UPDATE_SQL);
                     loadSql(schemaUpdateFile, conn);
                     try {
-                        conn.createStatement().execute("ALTER TABLE rule_chain ADD type varchar(255) DEFAULT 'CORE'"); //NOSONAR, ignoring because method used to execute thingsboard database upgrade script
+                        conn.createStatement().execute("ALTER TABLE rule_chain ADD COLUMN type varchar(255) DEFAULT 'CORE'"); //NOSONAR, ignoring because method used to execute thingsboard database upgrade script
                     } catch (Exception e) {}
                     log.info("Schema updated.");
                 }