I can't access those links! On Tue, Sep 16, 2014 at 11:14 AM, Daniel Kinzler < daniel.kinz...@wikimedia.de> wrote:
> Hi all! > > The Wikibase team would like to allow data from any item to be used on any > client page. To do this, we need to track which item is being used where, > so we > can purge the appropriate pages when the item changes. We would like to > have > people with database experience to look at our proposal and let us know > about > any concerns, especially wrt performance. > > Here you find a proposal for two database tables for tracking the usage of > entities across wikis: > > > https://gerrit.wikimedia.org/r/#/c/158078/9/usagetracking/includes/Usage/Sql/entity_usage.sql,unified > > > https://gerrit.wikimedia.org/r/#/c/158078/9/subscription/includes/Subscription/Sql/entities_per_client.sql,unified > > > The "entity_usage" table would be on every client, recording wich entity > is used > on which page (kind of like the iwlinks table). The "entity_per_client" > table > would be on the repo, and track which wiki ("client") is interested in > changes > to which entity. > > Please have a look and let me know if you have any questions or > suggestions, > especially with regards to the following use cases: > > The following would happpen when editing/re-parsing a page on a client wiki > (e.g. wikipedia): > * get all entities used on a given page from entity_usage > * delete rows based on a page id and a list of entity ids from entity_usage > * insert rows for a page / entity pair into entity_usage > * queriy rows for a set of entities from entity_usage (with no page id > specified). > * add rows for a set of (newly used) entites to the entity_per_client table > * remove rows for a set of (no longer used) entites from the > entity_per_client table > > The following would happen when dispatching a change from wikibase: > * looking up interested wikis for a list of entities from the > entity_per_client > table. > * (notification via the job queue) > * looking up pages to be purged/updated based on a list of entity ids (and > possibly an aspect id) in the entity_usage table. > > -- daniel > > -- > Daniel Kinzler > Senior Software Developer > > Wikimedia Deutschland > Gesellschaft zur Förderung Freien Wissens e.V. > _______________________________________________ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
