This improves Magento EE's catalog_category_product
indexer rebuild
performance considerably for stores with large product catalogs.
The functionality of the index is not altered.
- PHP 5.4.0 or higher
- Magento EE 1.13.1.0 through Magento EE 1.14.2.4
Note: This improvement has been submitted to Magento 2 as a patch.