The "links" table exists on all wikis.

Though enwiki.links is empty, some wikis have small amounts of data in the table.

Therefore I've renamed it to "links_old" for now, to be dropped after a suitable cooling-off period.

(In reply to comment #1)

The "links" table exists on all wikis.

How are you checking for table existence across all wikis? Can you output the full findings? (For example, I don't see a "links" database table on foundationwiki_p or testwiki_p, but I do see one on mediawikiwiki_p and zhwiki_p.)

Therefore I've renamed it to "links_old" for now, to be dropped after a
suitable cooling-off period.

Thanks. :-)

Actually, I shouldn't have said 'all wikis', just 'most wikis'.

I have a sandbox mysqld on terbium with various metadata pulled daily from information_schema on all the database hosts.

CREATE TABLE db_tables (

`host_id` int(10) unsigned NOT NULL,
`db` varchar(32) NOT NULL,
`name` varchar(32) NOT NULL,
`engine` varchar(16) DEFAULT NULL,
`version` varchar(10) DEFAULT NULL,
`format` varchar(10) DEFAULT NULL,
`rows` bigint(20) unsigned DEFAULT NULL,
`data_len` bigint(20) unsigned DEFAULT NULL,
`index_len` bigint(20) unsigned DEFAULT NULL,
`auto_inc` bigint(20) unsigned DEFAULT NULL,
UNIQUE KEY `host_id` (`host_id`,`db`,`name`)

);

select distinct t.db as dbs_with_links from db_tables t where t.name = 'links' order by db;

+------------------+

+------------------+

+------------------+
212 rows in set (0.26 sec)

(In reply to comment #1)

The "links" table exists on all wikis.

Though enwiki.links is empty, some wikis have small amounts of data in the
table.

Therefore I've renamed it to "links_old" for now, to be dropped after a
suitable cooling-off period.

https://www.mediawiki.org/wiki/Manual:Links_table 1.5.0 is when it died.

"links" table has been removed from all wikis.