grouping - work with datetimes

packages/engines/default/SqlDumper.js

@@ -76,6 +76,9 @@ class SqlDumper {
       case 'v':
         this.putValue(value);
         break;
+      case 'c':
+        value(this);
+        break;
     }
   }
   putFormattedList(c, collection) {
@@ -255,6 +258,11 @@ class SqlDumper {
     if (fk.updateAction) this.put(' ^on ^update %k', fk.updateAction);
   }
 
+  /** @param type {import('@dbgate/types').TransformType} */
+  transform(type, dumpExpr) {
+    dumpExpr();
+  }
+
   /**
    * @param table {import('@dbgate/types').NamedObjectInfo}
    * @param allow {boolean}