Manual:text table

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Manual:Contents MediaWiki database layout text table


MediaWiki version: 1.5


The text table holds the wikitext of individual page revisions. If using Postgres or Oracle, this table is named pagecontent.

Field names are a holdover from the 'old' revisions table in MediaWiki 1.4 and earlier.

If you updated your wiki from MediaWiki 1.4 or older to a newer version, and if you have then run update.php at least once, you will still have old columns in the text table, whose contents have been migrated to the page table and the revision table (content is copied, not cut). These columns in the text table will not be used anymore. All fields in the text table except old_id, old_text and old_flags are not needed anymore and can be safely deleted.

Schema summary[edit | edit source]

MediaWiki version: 1.19
mysql> describe text;
+-----------+------------------+------+-----+---------+----------------+
| Field     | Type             | Null | Key | Default | Extra          |
+-----------+------------------+------+-----+---------+----------------+
| old_id    | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
| old_text  | mediumblob       | NO   |     | NULL    |                |
| old_flags | tinyblob         | NO   |     | NULL    |                |
+-----------+------------------+------+-----+---------+----------------+


MediaWiki version: 1.9
MediaWiki version: 1.8
mysql> describe text;
+-----------+-----------------+------+-----+---------+----------------+
| Field     | Type            | Null | Key | Default | Extra          |
+-----------+-----------------+------+-----+---------+----------------+
| old_id    | int(8) unsigned | NO   | PRI | NULL    | auto_increment |
| old_text  | mediumblob      | NO   |     | NULL    |                |
| old_flags | tinyblob        | NO   |     | NULL    |                |
+-----------+-----------------+------+-----+---------+----------------+
3 rows in set

Fields[edit | edit source]

old_id[edit | edit source]

revision.rev_text_id in revision table is a key to this column. (In MediaWiki 1.5+, archive.ar_text_id is also a key to this column.)

old_text[edit | edit source]

The wikitext of the page.

old_flags[edit | edit source]

Comma-separated list of flags. Contains the following possible values:

gzip Text is compressed with PHP's gzdeflate() function.
Note Note: If the $wgCompressRevisions option is on, new rows (=current revisions) will be gzipped transparently at save time. Previous revisions can also be compressed by using the script compressOld.php
utf-8 Text was stored as UTF-8.
Note Note: If the $wgLegacyEncoding option is on, rows *without* this flag will be converted to UTF-8 transparently at load time.
object Text field contained a serialized PHP object.
Note Note: The object either contains multiple versions compressed together to achieve a better compression ratio, or it refers to another row where the text can be found.
external Text was stored in an external location specified by old_text.
Note Note: Any additional flags apply to the data stored at that URL, not the URL itself. The 'object' flag is not set for URLs of the form 'DB://cluster/id/itemid', because the external storage system itself decompresses these.

See also[edit | edit source]

Databases Engines: MySQLOraclePostgreSQLSQLite
Technical documentation: Schema (tables) – API property associationsField prefixesPrimary key storage in other fieldsWikimedia extension tables
Configuration: SettingsSharing
Development: AccessOptimizationPolicyUpdaterExtension schema updatesPatch file
Core tables: archivecategorycategorylinkschange_tagconfigexternallinksfilearchivehitcounterimageimagelinksinterwikiiwlinksipblocksjobl10n_cachelanglinkslogginglog_searchmsg_resourcemsg_resource_linksmodule_depsobjectcacheoldimagepagepagelinkspage_propspage_restrictionsprotected_titlesquerycachequerycachetwoquerycache_inforecentchangesredirectrevisionsearchindexsitessite_statstag_summarytemplatelinkstexttranscacheupdateloguploadstashuseruser_former_groupsuser_groupsuser_newtalkuser_propertiesvalid_tagwatchlist
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