diff --git a/src/app/browser/qgsinbuiltdataitemproviders.cpp b/src/app/browser/qgsinbuiltdataitemproviders.cpp
index e0e2b4a50df7..716ceb842cec 100644
--- a/src/app/browser/qgsinbuiltdataitemproviders.cpp
+++ b/src/app/browser/qgsinbuiltdataitemproviders.cpp
@@ -2104,6 +2104,8 @@ void QgsDatabaseItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu *
         }
         else if ( context.messageBar() )
         {
+          if ( item->parent() )
+            item->parent()->refresh();
           context.messageBar()->pushMessage( tr( "Edited comment on %1" ).arg( fullName ), Qgis::MessageLevel::Success );
         }
       } );
diff --git a/src/providers/postgres/qgspostgresdataitems.cpp b/src/providers/postgres/qgspostgresdataitems.cpp
index 49c402bd1721..244934ce1425 100644
--- a/src/providers/postgres/qgspostgresdataitems.cpp
+++ b/src/providers/postgres/qgspostgresdataitems.cpp
@@ -124,6 +124,17 @@ QString QgsPGLayerItem::comments() const
   return mLayerProperty.tableComment;
 }
 
+bool QgsPGLayerItem::equal( const QgsDataItem *other )
+{
+  // Call parent class first
+  if ( !QgsLayerItem::equal( other ) )
+    return false;
+
+  // Also compare tooltips (which contain table comments)
+  const QgsPGLayerItem *o = qobject_cast<const QgsPGLayerItem *>( other );
+  return o && toolTip() == o->toolTip();
+}
+
 QString QgsPGLayerItem::createUri()
 {
   QgsPGConnectionItem *connItem = qobject_cast<QgsPGConnectionItem *>( parent() ? parent()->parent() : nullptr );
diff --git a/src/providers/postgres/qgspostgresdataitems.h b/src/providers/postgres/qgspostgresdataitems.h
index f04f297acb96..a8ebe906c164 100644
--- a/src/providers/postgres/qgspostgresdataitems.h
+++ b/src/providers/postgres/qgspostgresdataitems.h
@@ -112,6 +112,8 @@ class QgsPGLayerItem : public QgsLayerItem
 
     QString comments() const override;
 
+    bool equal( const QgsDataItem *other ) override;
+
     const QgsPostgresLayerProperty &layerInfo() const { return mLayerProperty; }
 
     QVector<QgsDataItem *> createChildren() override;