image_comment_temp was always intended to be temporary, until an
expensive schema change on Wikimedia Commons's image table could be
done. Now that that has been done, stop writing image_comment_temp and
add a migration script to copy existing data into img_description_id.
Ic8efeddc will remove the reads from image_comment_temp and drop the
image_comment_temp table.
Bug: T188132
Change-Id: Iab5f521577a415b2dc213b517ee8a0dca4fdd0aa
Update the database schema so a block can be switched between a sitewide and
partial block. Also add the restrictions table for specifiying the partial
blocks.
Bug: T197144
Change-Id: I4a725312c4b980a1b14e5ca826069fa2278a5913
MySQL, SQLite, PostgreSQL and MSSQL done with transitional patches.
One additional duplicate index removed from PostgreSQL schema.
Having a PK is essential to do maintenance, specially on large tasks.
By not having a PK it is impossible to add it in a safe way if not done
directly on the master.
Having a PK means that we can easily change the PK into another one if
needed in the future. The ones we chose might not be the best ones, but
will allow us to get them changed.
Bug: T198811
Change-Id: I6b96a427687085c6c24bcd759c9739f81288b919
Since update.php will eventually be dropping the old columns and fields,
we should make sure the migration script gets run first.
Bug: T197818
Change-Id: I47f5ba4e21b4fe2ef0beb9fc83896cd4b0a0d505
To follow up I39b0825c, this change replaces the existing non-unique
index on the column with a unique index, to help avoid some of these
sort of bugs in the future.
Bug: T193180
Change-Id: I932478c9c6a13210bc9dff75286d0f08da56682c
Old bugs and such may have left the archive table with multiple rows
using the same ar_rev_id, or rows that also exist in the revision table.
These need to be cleaned up for MCR.
The maintenance script added here will delete rows that appear to be
duplicates of the same change, and will assign new IDs to rows that do
not appear to be duplicates.
Bug: T193180
Change-Id: I39b0825c9469e074ded3df33a4f06a1ef0edb494
Adds a maintenance script to populate the field, has that be
automatically run during update.php, and drops the no-longer-needed
default value on the column (where possible: mssql has some sort of
constraint thing going on that I have no idea how it works).
Bug: T59176
Change-Id: I971edf013a1a39466aca3b6e34c915cb24fd3aa7
Table defining tag names for IDs. Also stores hit counts to avoid expensive queries on change_tag
See T185355 for more information
Bug: T193867
Bug: T185355
Change-Id: I4fd943589b3ed304471304c8beda15327a8edbcf
PostgreSQL allows setting an "owner" column for a sequence, so if that
column is dropped then the sequence will be dropped too. We should
certainly take advantage of that when creating duplicate tables for unit
testing (particularly when $temporary is false), and we may as well do
it for our permanent tables too.
Change-Id: I4822ac33298e3f3ef59f4372a24aa0866a6e66ae
Revisions deleted before MediaWiki 1.5 do not have a value in this
field. This is going to be a problem for migration to the MCR schema, so
provide a maintenance script to clean this up.
Then, for good measure, change the schema to make the field
non-nullable.
Bug: T182678
Change-Id: Ie2e11f12a30f379db32c3e074658012c6f93adb0
The site stats table holds a bunch of metric fields, two of which are of
data type "bigint unsigned", 3 are "bigint" (signed) and one is int
(signed). Also the default values differ widely: It is 0 on the
"unsigned" fields and the "int" field, but -1 on the three others. This
patch makes all of this more consistent:
Set all fields (except the ss_row_id, which isn't changed) data type to
"bigint unsigned". Also set NULL as the default value for all those
fields. Obviously -1 isn't a possible default value any more. Also, 0
can easily be mistaken for a real value (e.g. ss_active_users=0 -->
"there is nobody active on this wiki"). NULL, by it's definition, is the
value of choice for a value to insert into fields of which we don't know
a correct value.
The respective patch files were tested locally against MySql, Sqlite,
Postgres and SQL Server 2016. Neither oracle nor the upgrade with
update.php was tested.
Bug: T56888
Change-Id: I7d42aae434852a56b6f8dd559d8a5f3bce416021
There doesn't seem to be any reason this shouldn't follow the naming
conventions of other PG-specific schema change functions, and Ie9dbda329
shows that difference can be confusing.
Change-Id: Ie3e0d5b130486aa9ab5eebd879dca846dfa99584
This begins the process of merging image_comment_temp into the image
table by adding the needed column. Iab5f5215 will adjust the code
to use it and to add the necessary migration script.
Note this patch puts the new schema change in the 1.30 section rather
than the 1.31 section. This allows Iab5f5215 to have migrateComments.php
migrate the comments directly to the new field instead of having to
populate and then depopulate the temporary table.
Bug: T188132
Change-Id: I2485c5a758bf03bb2b4991eea920abd9d0d30bda
Storing the user name or IP in every row in large tables like revision
and logging takes up space and makes operations on these tables slower.
This patch begins the process of moving those into one "actor" table
which other tables can reference with a single integer field.
A subsequent patch will remove the old columns.
Bug: T167246
Depends-On: I9293fd6e0f958d87e52965de925046f1bb8f8a50
Change-Id: I8d825eb02c69cc66d90bd41325133fd3f99f0226
Follows up Ic3a434c06.
Add schema for MSSQL and Oracle, and add a missing 'migrateComments'
call for PostgreSQL.
Bug: T166732
Change-Id: I408085db17bf951ce721427e7344b4afd5706e40
This really should have been done a very long time ago.
This adds a maintenance script to migrate rows with ar_text_id null to
modern storage, either the text table or ExternalStore.
Bug: T36925
Change-Id: I5608c6b6d3ecad516b785e13d668427c1b762e41
Schema additions/updates for MySQL, SQLite, PostgreSQL, MSSQL
and Oracle to add new tables:
* content
* content_models
* slots
* slot_roles
See also https://www.mediawiki.org/wiki/Multi-Content_Revisions/Database_Schema
Bug: T174028
Change-Id: I30a3a9834d54d0e6957553d91908b2b73b2c802f
If the ip_changes table doesn't exist, the populateIpChanges maintenance
script will fail gracefully, throwing a descriptive error.
The postgres SQL is untested.
Bug: T177258
Change-Id: Ic11c64813ee04e8520771bfa156f8e51404273e7
As discussed in I7d42aae434852a56b6f8dd559d8a5f3bce416021 primary keys
are needed to perform various schema changes on the site_stats table.
This patch aims to introduce primary keys for all supported dbms.
The respective *.sql patch files were tested locally against Postgres
and SQL Server 2016. Please note that neither the patch file for Oracle
DB nor the mediawiki upgrade through update.php was tested.
Bug: T56888
Change-Id: Id10e221f0dc120bc09afc22596fd1dbecbf6a61d
Follows-up 6260545fee, a2f5d05ae8. (T157348)
If updates are run for the first time on an installation that already
has '3D' in the enum (e.g. because it's a fresh install), the update
fails.
Instead of blindly running a patch file, we instead add a method that
checks whether the enum type already contains the value before adding
it.
Bug: T177417
Change-Id: Iad10cb88cf1cb35cfb95ce98a556b33688158a88
I was bored. What? Don't look at me that way.
I mostly targetted mixed tabs and spaces, but others were not spared.
Note that some of the whitespace changes are inside HTML output,
extended regexps or SQL snippets.
Change-Id: Ie206cc946459f6befcfc2d520e35ad3ea3c0f1e0
It's unreasonable to expect newbies to know that "bug 12345" means "Task T14345"
except where it doesn't, so let's just standardise on the real numbers.
Change-Id: I6f59febaf8fc96e80f8cfc11f4356283f461142a
This patch adds an ug_expiry column to the user_groups table, a timestamp
giving a date when the user group expires. A new UserGroupMembership class,
based on the Block class, manages entries in this table.
When the expiry date passes, the row in user_groups is ignored, and will
eventually be purged from the DB when UserGroupMembership::insert is next
called. Old, expired user group memberships are not kept; instead, the log
entries are available to find the history of these memberships, similar
to the way it has always worked for blocks and protections.
Anyone getting user group info through the User object will get correct
information. However, code that reads the user_groups table directly will
now need to skip over rows with ug_expiry < wfTimestampNow(). See
UsersPager for an example of how to do this.
NULL is used to represent infinite (no) expiry, rather than a string
'infinity' or similar (except in the API). This allows existing user group
assignments and log entries, which are all infinite in duration, to be
treated the same as new, infinite-length memberships, without special
casing everything.
The whole thing is behind the temporary feature flag
$wgDisableUserGroupExpiry, in accordance with the WMF schema change policy.
The opportunity has been taken to refactor some static user-group-related
functions out of User into UserGroupMembership, and also to add a primary
key (ug_user, ug_group) to the user_groups table.
There are a few breaking changes:
- UserRightsProxy-like objects are now required to have a
getGroupMemberships() function.
- $user->mGroups (on a User object) is no longer present.
- Some protected functions in UsersPager are altered or removed.
- The UsersPagerDoBatchLookups hook (unused in any Wikimedia Git-hosted
extension) has a change of parameter.
Bug: T12493
Depends-On: Ia9616e1e35184fed9058d2d39afbe1038f56d7fa
Depends-On: I86eb1d5619347ce54a5f33a591417742ebe5d6f8
Change-Id: I93c955dc7a970f78e32aa503c01c67da30971d1a
This will allow for replacing the limit-and-offset queries with queries
that page in a sensible manner.
Bug: T59176
Change-Id: If5c137f68496772f3fff3a735b7b0c388426e518
* Remove redundant schema prefix from relname=x query. The
schema filtering is already done via the JOIN. The relname
portion is just the table name not <schema>.<table name>.
* Avoid explicit table schema qualification and rely on the
search path, as MW 1.27 did. Previously it only used the
global $wgDBschema var to pass to determineCoreSchema()
instead of keeping it in mSchema.
* Clean up some code duplication in Database::tableName() and
make the code comments clearer.
* Make DatabasePostgres::tableName() use parent::tableName()
instead of a method that just wraps this method. The intent
seems clearer this way.
* Remove unused return value in
PostgresUpdater::rebuildTextSearch().
Bug: T148628
Change-Id: Id11d9576b7c2fdad22ff7f90727c12997217a632
