Special property "Query duration"
| Query duration | |
|---|---|
Holds the value of the duration a query took to execute
| |
| Further Information | |
| Provided by: | extension "Semantic MediaWiki "Allows to store and query data annotated to pages |
| Added: | 1.9.0 |
| Removed: | still in use |
| Alias: | has no alias |
| Optional: | yes |
| Visible: | yes |
| Annotable: | no |
| Declarative: | no |
| Key: | _ASKDU
|
| Setting: | not specified |
| Focus: | query information |
| In this wiki: | Property:Query duration |
| Table of Contents | |
The Query depth property is a special property in Semantic MediaWiki with a built-in meaning: it holds the value of the duration a query took to execute. See the help page on how to query for queries for more details on how to use this special property. It is not possible to manually add a value to this special property. It was introduced with Semantic MediaWiki 1.9.0Released on 3 January 2014 and compatible with MW 1.19.0 - 1.22.x..1
By default the measurement of the execution time of a query is disabled. See the help page on configuration parameter $smwgQueryProfilerSets whether specific monitorable profile data are recorded for how to enable this.
See the property page Query duration to see which pages use this special property on this wiki.
Available special properties relating to query profiling[edit]
The following other special properties are available for query profiling:
| Name | Description | Help page | Added |
|---|---|---|---|
| Has query | Links a page to the subobject created by a query recording its profile | Special property "Has query" | 1.8.0 |
| Query depth | Holds the value of the property depth of a query | Special property "Query depth" | 1.8.0 |
| Query format | Holds the name of the result format used in a query | Special property "Query format" | 1.8.0 |
| Query size | Holds the value of the number of conditions in a query | Special property "Query size" | 1.8.0 |
| Query string | Holds the conditions of the query as a string | Special property "Query string" | 1.8.0 |
| Query source | Holds the identifier of an alternative (e.g. remote) query source | Special property "Query source" | 2.5.0 |
| Query parameters | Holds the parameters a query used to select its output | Special property "Query parameters" | 2.5.0 |
| Query state | Holds the status code a query uses to define its internal state | Special property "Query state" | 3.0.0 |
See also[edit]
- Help page on special property "Has query"Links a page to the subobject created by a query recording its profile
- Help page on query profiling
- Help page on querying for queries
