Manual:$wgLegacySchemaConversion

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Miscellaneous settings: $wgLegacySchemaConversion
Option to speed up the conversion step for large sites when migrating the schema from 1.4 to 1.5
Introduced in version: 1.5.0
Removed in version: still in use
Allowed values: boolean
Default value: false
Other settings: Alphabetical | By function

Details[edit]

If set to true, the MediaWiki 1.4 to 1.5 schema conversion will create stub reference rows in the text table instead of copying the full text of all current entries from 'cur' to 'text'.

This will speed up the conversion step for large sites, but requires that the cur table be kept around for those revisions to remain viewable.

maintenance/migrateCurStubs.php can be used to complete the migration in the background once the wiki is back online.

This option affects the updaters *only*. Any present cur stub revisions will be readable at runtime regardless of this setting.