Ticket #38265: 38265.diff

src/wp-admin/includes/schema.php

@@ -82 +82 @@
  KEY taxonomy (taxonomy)
 ) $charset_collate;
 CREATE TABLE $wpdb->term_relationships (
+ term_relationship_id bigint(20) unsigned NOT NULL auto_increment,
  object_id bigint(20) unsigned NOT NULL default 0,
  term_taxonomy_id bigint(20) unsigned NOT NULL default 0,
  term_order int(11) NOT NULL default 0,
- PRIMARY KEY  (object_id,term_taxonomy_id),
+ PRIMARY KEY  (term_relationship_id),
+ UNIQUE KEY object_id (object_id,term_taxonomy_id),
  KEY term_taxonomy_id (term_taxonomy_id)
 ) $charset_collate;
 CREATE TABLE $wpdb->commentmeta (