https://bugzilla.wikimedia.org/show_bug.cgi?id=15441

Asher Feldman <[email protected]> changed:

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--- Comment #16 from Asher Feldman <[email protected]> 2012-05-16 18:00:41 
UTC ---
(In reply to comment #2)
The following tables in enwiki don't have a primary or unique key defined:

mysql> select table_schema,table_name from information_schema.columns where
table_schema='enwiki' group by table_name having sum(if(column_key in
('PRI','UNI'), 1,0)) = 0;
+--------------+--------------------------------+
| table_schema | table_name                     |
+--------------+--------------------------------+
| enwiki       | archive                        |
| enwiki       | archive_old                    |
| enwiki       | change_tag                     |
| enwiki       | click_tracking                 |
| enwiki       | click_tracking_user_properties |
| enwiki       | edit_page_tracking             |
| enwiki       | exarchive                      |
| enwiki       | exlogging                      |
| enwiki       | externallinks                  |
| enwiki       | hashs                          |
| enwiki       | hidden                         |
| enwiki       | hitcounter                     |
| enwiki       | l10n_cache                     |
| enwiki       | logging_old                    |
| enwiki       | long_run_profiling             |
| enwiki       | namespaces                     |
| enwiki       | oldimage                       |
| enwiki       | oldimage_old                   |
| enwiki       | old_growth                     |
| enwiki       | querycache                     |
| enwiki       | querycachetwo                  |
| enwiki       | querycache_old                 |
| enwiki       | securepoll_lists               |
| enwiki       | user_newtalk                   |
| enwiki       | user_properties                |
| enwiki       | validate                       |
+--------------+--------------------------------+
26 rows in set (0.03 sec)

This is especially vexing for the large tables (archive, externallinks) which
I'd like to be able to perform online schema migrations against.

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