Property talk:P12895

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indexer
entity responsible for compiling an index of a book, database, website or other forms of media publications in the form of a methodical arrangement of records designed to enable users to locate information quickly

Data type	Item
Domain	work (Q386724), magazine (Q41298), periodical (Q1002697), version, edition or translation (Q3331189), news agency (Q192283), anthology (Q105420), editorial board (Q2985386), edited volume (Q1711593), survey methodology (Q814232) or editorial team (Q24354647)
Example	Seven Pillars of Wisdom (Q24323) → Hazel K. Bell (Q70226489) The Indexing Companion (Q127112266) → Glenda Browne (Q113860450) The familiar letters of James Howell (Q127112937) → Joseph Jacobs (Q981949) Archaeology in Western Samoa (Q115027564) → Dorothy Brown (Q126453091)
Source	https://www.abc.net.au/news/2022-01-28/index-history-invention-made-simultaneously-800-years-ago/100690782 https://www.penguin.com.au/books/index-a-history-of-the-9780141989662 https://glog.glennf.com/tiny-type-blog/2022/2/22/indexing-a-podcast-about-duncan-dennis-paula-clarke-bain https://www.nytimes.com/2022/02/15/books/review/index-a-history-of-the-dennis-duncan.html
See also	editor (P98), illustrator (P110), colorist (P6338), letterer (P9191), penciller (P10837), inker (P10836), annotator (P11105)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Database reports/Constraint violations/P12895 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 39 Main statement 35 89.7% of uses Qualifier 4 10.3% of uses
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Type “work (Q386724), magazine (Q41298), periodical (Q1002697), version, edition or translation (Q3331189), news agency (Q192283), anthology (Q105420), editorial board (Q2985386), edited volume (Q1711593), survey methodology (Q814232), editorial team (Q24354647)”: item must contain property “instance of (P31)” with classes “work (Q386724), magazine (Q41298), periodical (Q1002697), version, edition or translation (Q3331189), news agency (Q192283), anthology (Q105420), editorial board (Q2985386), edited volume (Q1711593), survey methodology (Q814232), editorial team (Q24354647)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12895#Type Q386724, Q41298, Q1002697, Q3331189, Q192283, Q105420, Q2985386, Q1711593, Q814232, Q24354647, SPARQL

Value type “human (Q5), organization (Q43229)”: This property should use items as value that contain property “instance of (P31)”. On these, the value for instance of (P31) should be an item that uses subclass of (P279) with value human (Q5), organization (Q43229) (or a subclass thereof). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12895#Value type Q5, Q43229, SPARQL

Scope is as main value (Q54828448), as qualifier (Q54828449), as reference (Q54828450): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12895#Scope, SPARQL

Contemporaries:
if [item A] has this property (indexer (P12895)) linked to [item B],
then [item A] and [item B] have to coincide or coexist at some point of history. (Help)

List of violations of this constraint: Database reports/Constraint violations/P12895#Contemporary, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200), Wikibase property (Q29934218), Wikibase lexeme (Q51885771): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12895#Entity types