-- It's possible for multiple revisions to use the same text,
-- for instance revisions where only metadata is altered
-- or a rollback to a previous version.
- rev_text_id int unsigned NOT NULL,
+ -- @deprecated since 1.31. If rows in the slots table with slot_revision_id = rev_id
+ -- exist, this field should be ignored (and may be 0) in favor of the
+ -- corresponding data from the slots and content tables
+ rev_text_id int unsigned NOT NULL default 0,
-- Text comment summarizing the change. Deprecated in favor of
-- revision_comment_temp.revcomment_comment_id.
rev_sha1 varbinary(32) NOT NULL default '',
-- content model, see CONTENT_MODEL_XXX constants
+ -- @deprecated since 1.31. If rows in the slots table with slot_revision_id = rev_id
+ -- exist, this field should be ignored (and may be NULL) in favor of the
+ -- corresponding data from the slots and content tables
rev_content_model varbinary(32) DEFAULT NULL,
-- content format, see CONTENT_FORMAT_XXX constants
+ -- @deprecated since 1.31. If rows in the slots table with slot_revision_id = rev_id
+ -- exist, this field should be ignored (and may be NULL).
rev_content_format varbinary(64) DEFAULT NULL
) /*$wgDBTableOptions*/ MAX_ROWS=10000000 AVG_ROW_LENGTH=1024;
--
--- Holding area for deleted articles, which may be viewed
--- or restored by admins through the Special:Undelete interface.
--- The fields generally correspond to the page, revision, and text
--- fields, with several caveats.
+-- Archive area for deleted pages and their revisions.
+-- These may be viewed (and restored) by admins through the Special:Undelete interface.
--
CREATE TABLE /*_*/archive (
-- Primary key
ar_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
+
+ -- Copied from page_namespace
ar_namespace int NOT NULL default 0,
+ -- Copied from page_title
ar_title varchar(255) binary NOT NULL default '',
- -- Newly deleted pages will not store text in this table,
- -- but will reference the separately existing text rows.
- -- This field is retained for backwards compatibility,
- -- so old archived pages will remain accessible after
- -- upgrading from 1.4 to 1.5.
- -- Text may be gzipped or otherwise funky.
+ -- Copied from text.old_text, for pages deleted before MediaWiki 1.5.
+ -- This row may contain the raw revision text, possibly compressed.
+ -- Newer MediaWiki versions use ar_text_id instead.
+ -- This field is retained for backwards compatibility, so that
+ -- old archived pages will remain accessible.
+ -- See migrateArchiveText.php for migrating values to text storage.
ar_text mediumblob NOT NULL,
-- Basic revision stuff...
ar_timestamp binary(14) NOT NULL default '',
ar_minor_edit tinyint NOT NULL default 0,
- -- See ar_text note.
+ -- Copied from text.old_flags, for pages deleted before MediaWiki 1.5.
+ -- Otherwise empty string.
+ -- See also note for ar_text.
ar_flags tinyblob NOT NULL,
- -- When revisions are deleted, their unique rev_id is stored
- -- here so it can be retained after undeletion. This is necessary
- -- to retain permalinks to given revisions after accidental delete
- -- cycles or messy operations like history merges.
+ -- Copied from rev_id.
--
- -- Old entries from 1.4 will be NULL here, and a new rev_id will
- -- be created on undeletion for those revisions.
+ -- @since 1.5 Entries from 1.4 will be NULL here. When restoring
+ -- archive rows from before 1.5, a new rev_id is created.
ar_rev_id int unsigned,
- -- For newly deleted revisions, this is the text.old_id key to the
- -- actual stored text. To avoid breaking the block-compression scheme
- -- and otherwise making storage changes harder, the actual text is
- -- *not* deleted from the text table, merely hidden by removal of the
- -- page and revision entries.
+ -- Copied from rev_text_id, references text.old_id.
+ -- To avoid breaking the block-compression scheme and otherwise making
+ -- storage changes harder, the actual text is *not* deleted from the
+ -- text storage. Instead, it is merely hidden from public view, by removal
+ -- of the page and revision entries.
--
- -- Old entries deleted under 1.2-1.4 will have NULL here, and their
- -- ar_text and ar_flags fields will be used to create a new text
- -- row upon undeletion.
+ -- @since 1.5 Entries from 1.2-1.4 will have NULL here. When restoring
+ -- archive rows without this, ar_text and ar_flags are used instead.
+ -- @deprecated since 1.31. If rows in the slots table with slot_revision_id = ar_rev_id
+ -- exist, this field should be ignored (and may be NULL or 0) in favor of the
+ -- corresponding data from the slots and content tables
ar_text_id int unsigned,
- -- rev_deleted for archives
+ -- Copied from rev_deleted. Although this may be raised during deletion.
+ -- Users with the "suppressrevision" right may "archive" and "suppress"
+ -- content in a single action.
+ -- @since 1.10
ar_deleted tinyint unsigned NOT NULL default 0,
- -- Length of this revision in bytes
+ -- Copied from rev_len, length of this revision in bytes.
+ -- @since 1.10
ar_len int unsigned,
- -- Reference to page_id. Useful for sysadmin fixing of large pages
- -- merged together in the archives, or for cleanly restoring a page
- -- at its original ID number if possible.
+ -- Copied from page_id. Restoration will attempt to use this as page ID if
+ -- no current page with the same name exists. Otherwise, the revisions will
+ -- be restored under the current page. Can be used for manual undeletion by
+ -- developers if multiple pages by the same name were archived.
--
- -- Will be NULL for pages deleted prior to 1.11.
+ -- @since 1.11 Older entries will have NULL.
ar_page_id int unsigned,
- -- Original previous revision
+ -- Copied from rev_parent_id.
+ -- @since 1.13
ar_parent_id int unsigned default NULL,
- -- SHA-1 text content hash in base-36
+ -- Copied from rev_sha1, SHA-1 text content hash in base-36
+ -- @since 1.19
ar_sha1 varbinary(32) NOT NULL default '',
- -- content model, see CONTENT_MODEL_XXX constants
+ -- Copied from rev_content_model, see CONTENT_MODEL_XXX constants
+ -- @since 1.21
+ -- @deprecated since 1.31. If rows in the slots table with slot_revision_id = ar_rev_id
+ -- exist, this field should be ignored (and may be NULL) in favor of the
+ -- corresponding data from the slots and content tables
ar_content_model varbinary(32) DEFAULT NULL,
- -- content format, see CONTENT_FORMAT_XXX constants
+ -- Copied from rev_content_format, see CONTENT_FORMAT_XXX constants
+ -- @since 1.21
+ -- @deprecated since 1.31. If rows in the slots table with slot_revision_id = ar_rev_id
+ -- exist, this field should be ignored (and may be NULL).
ar_content_format varbinary(64) DEFAULT NULL
) /*$wgDBTableOptions*/;
--
CREATE TABLE /*_*/slots (
- -- reference to rev_id
+ -- reference to rev_id or ar_rev_id
slot_revision_id bigint unsigned NOT NULL,
-- reference to role_id
-- reference to content_id
slot_content_id bigint unsigned NOT NULL,
- -- whether the content is inherited (1) or new in this revision (0)
- slot_inherited tinyint unsigned NOT NULL DEFAULT 0,
+ -- The revision ID of the revision that originated the slot's content.
+ -- To find revisions that changed slots, look for slot_origin = slot_revision_id.
+ slot_origin bigint unsigned NOT NULL,
PRIMARY KEY ( slot_revision_id, slot_role_id )
) /*$wgDBTableOptions*/;
-- Index for finding revisions that modified a specific slot
-CREATE INDEX /*i*/slot_role_inherited ON /*_*/slots (slot_revision_id, slot_role_id, slot_inherited);
+CREATE INDEX /*i*/slot_revision_origin_role ON /*_*/slots (slot_revision_id, slot_origin, slot_role_id);
--
-- The content table represents content objects. It's primary purpose is to provide the necessary
-- Nominal hash of the content object (not necessarily of the serialized blob)
content_sha1 varbinary(32) NOT NULL,
- -- reference to model_id
+ -- reference to model_id. Note the content format isn't specified; it should
+ -- be assumed to be in the default format for the model unless auto-detected
+ -- otherwise.
content_model smallint unsigned NOT NULL,
-- URL-like address of the content blob
ss_row_id int unsigned NOT NULL PRIMARY KEY,
-- Total number of edits performed.
- ss_total_edits bigint unsigned default 0,
+ ss_total_edits bigint unsigned default NULL,
- -- An approximate count of pages matching the following criteria:
- -- * in namespace 0
- -- * not a redirect
- -- * contains the text '[['
- -- See Article::isCountable() in includes/Article.php
- ss_good_articles bigint unsigned default 0,
+ -- See SiteStatsInit::articles().
+ ss_good_articles bigint unsigned default NULL,
- -- Total pages, theoretically equal to SELECT COUNT(*) FROM page; except faster
- ss_total_pages bigint default '-1',
+ -- Total pages, theoretically equal to SELECT COUNT(*) FROM page.
+ ss_total_pages bigint unsigned default NULL,
- -- Number of users, theoretically equal to SELECT COUNT(*) FROM user;
- ss_users bigint default '-1',
+ -- Number of users, theoretically equal to SELECT COUNT(*) FROM user.
+ ss_users bigint unsigned default NULL,
- -- Number of users that still edit
- ss_active_users bigint default '-1',
+ -- Number of users that still edit.
+ ss_active_users bigint unsigned default NULL,
- -- Number of images, equivalent to SELECT COUNT(*) FROM image
- ss_images int default 0
+ -- Number of images, equivalent to SELECT COUNT(*) FROM image.
+ ss_images bigint unsigned default NULL
) /*$wgDBTableOptions*/;
--
dépôts / lhc / web / wiklou.git / blobdiff