pt-duplicate-key-checker on Drupal 8 (after this patch https://www.drupal.org/node/2428297)

pt-duplicate-key-checker_Drupal8.txt

root@Debian77:~# pt-duplicate-key-checker --user=root --password=vagrant --database=drupal8 
# ########################################################################
# drupal8.url_alias                                                       
# ########################################################################

# Key source_langcode_pid ends with a prefix of the clustered index
# Key definitions:
#   KEY `source_langcode_pid` (`source`,`langcode`,`pid`)
#   PRIMARY KEY (`pid`),
# Column types:
#	  `source` varchar(255) not null default '' comment 'the drupal path this alias is for; e.g. node/12.'
#	  `langcode` varchar(12) not null default '' comment 'the language code this alias is for; if ''und'', the alias will be used for unknown languages. each drupal path can have an alias for each supported language.'
#	  `pid` int(10) unsigned not null auto_increment comment 'a unique path alias identifier.'
# To shorten this duplicate clustered index, execute:
ALTER TABLE `drupal8`.`url_alias` DROP INDEX `source_langcode_pid`, ADD INDEX `source_langcode_pid` (`source`,`langcode`);

# Key alias_langcode_pid ends with a prefix of the clustered index
# Key definitions:
#   KEY `alias_langcode_pid` (`alias`,`langcode`,`pid`),
#   PRIMARY KEY (`pid`),
# Column types:
#	  `alias` varchar(255) not null default '' comment 'the alias for this path; e.g. title-of-the-story.'
#	  `langcode` varchar(12) not null default '' comment 'the language code this alias is for; if ''und'', the alias will be used for unknown languages. each drupal path can have an alias for each supported language.'
#	  `pid` int(10) unsigned not null auto_increment comment 'a unique path alias identifier.'
# To shorten this duplicate clustered index, execute:
ALTER TABLE `drupal8`.`url_alias` DROP INDEX `alias_langcode_pid`, ADD INDEX `alias_langcode_pid` (`alias`,`langcode`);

# ########################################################################
# Summary of indexes                                                      
# ########################################################################

# Size Duplicate Indexes   1618
# Total Duplicate Indexes  2
# Total Indexes            221