Magento search Configurable product showing on simple product name

Question

These are my settings

In Configuration Catalog search is set to Fulltext.

In Attributes only name is searchable.

Configurable products are catalog-search while associated simple products are set to Not visible indivisually.

Configurable Product name is Violet Diamond and one of simple product name is Blackberry Diamond.

So When I am searching for Blackberry, Violet Diamond comes up. This should not happen.

When I changes the name of simple product Blackberry Diamond to something else then it works and nothing comes up in the search.

Anybody have any idea.

Answer 1

as Pramod Kharade says in the comments, this is default behavior.
The method Mage_CatalogSearch_Model_Resource_Fulltext::_rebuildStoreIndex that is called when the full text search index is rebuild calls this.

$productChildren = $this->_getProductChildrenIds($productData['entity_id'],
                    $productData['type_id'], $websiteId);

which retrieves the simple products for the configurable, grouped and bundle products and adds the searchable attribute values of these child products to the parent product search fields.
If you don't like this behaviour you can rewrite the method Mage_CatalogSearch_Model_Resource_Fulltext::_getProductChildrenIds and make it return null.