Ticket #62790: autoload-index-removal.diff

src/wp-admin/includes/schema.php

@@ -352 +352 @@
         KEY option_name (option_name),
         KEY autoload (autoload)
     ) $charset_collate;
-
 
     $tables['users'] = "CREATE TABLE $wpdb->users (
         ID bigint(20) unsigned NOT NULL auto_increment,

src/wp-admin/includes/upgrade.php

@@ -2975 +2975 @@
         );
     }
 
+    //
+    // Remove unused autoload index from wp_options (#62790)
+    //
+    if ( $wpdb->get_var( "SHOW INDEXES FROM {$wpdb->options} WHERE Key_name = 'autoload'" ) ) {
+        $wpdb->query( "ALTER TABLE {$wpdb->options} DROP INDEX autoload" );
+    }
+
+
     // Database upgrade routines continue...
 }