Maintenance script "rebuild­Property­Statistics.php"

Allows to rebuild the property usage statistics
Further Information
Provided by: Semantic MediaWiki
Added: 1.9.0
Removed: still in use
Location (path): ./extensions/SemanticMediaWiki/maintenance/
Table of Contents

The "rebuildPropertyStatistics.php" maintenance script rebuilds the statistics for property data shown as the property usage count on the property pages as well as on the related special pages, i.e. special page "Properties"Lists properties and displays their usage, special page "WantedProperties"Lists used properties with no explicit datatype assignment, special page "UnusedProperties"Lists properties with an explicit datatype assignment without having a value assignment (annotation) and special page "Statistics"No description was provided..

The script was introduced in Semantic MediaWiki 1.9.0Released on 3 January 2014 and compatible with MW 1.19.0 - 1.22.x. and only works if configuration parameter $smwgDefaultStoreSets the storage backend to be used for the semantic data is set to SMWSQLStore3 (= default setting), i.e. SPARQL stores are currently not supported.

Semantic MediaWiki 3.2.0Released on 7 September 2020 and compatible with MW 1.31.0 - 1.35.x. brought an improved client output to this maintenance script.1

Since this maintenance script provides means of updating statistical data the real time updating of these data through intense immediate data base operations is no longer done by Semantic MediaWiki. Thus the performance of the wiki is improved.

It is recommended to run this script in daily intervals as part of the general wiki maintenance.
The display of statistical data on the special pages mentioned above is also influenced by configuration parameter $smwgCacheUsageSets how the caching behaviour or special pages related to Semantic MediaWiki is controlled i.e. the information displayed is not immediately updated at the time this maintenance script is run. This may take up to one hour if the default settings are used.


php rebuildPropertyStatistics.php [--with-maintenance-log]
This only shows the script specific parameters.


Maintenance scripts provide generic maintenance parameters, script dependent parameters and depending on the maintenance script script specific parameters which are described on this page if provided.

Script specific parameters
Parameter Description
--with-maintenance-log Adds a log entry to the "Semantic MediaWiki log" on special page "Log" (&type=smw). Available since Semantic MediaWiki

NoteNote:  If you are using this parameter make sure that MediaWiki's configuration parameter $wgMaxNameChars ( is set to a value not lower than "31".4 Otherwise an exception will be issued informing about the minimum value for this setting ("32" or higher is recommended).5



  1. ^  Semantic MediaWiki: GitHub pull request gh:smw:4518
  2. ^  Semantic MediaWiki: GitHub issue gh:smw:832
  3. ^  Semantic MediaWiki: GitHub pull request gh:smw:1361
  4. ^  Semantic MediaWiki: GitHub issue gh:smw:1983
  5. ^  Semantic MediaWiki: GitHub pull request gh:smw:1985