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Question by Evgeniya Drapun · Mar 17, 2017 at 06:52 AM · data-fusiondocumentdate

Document lastModified, createdDate, docDate meaning

On LinkQ project when we request entity/search for document we can see in the responce several dates:

"lastModified_attr_dt":

"createdDate_attr_dt":

"docDate_attr":

What does each mean?

Which one is related to document creation? What modifications can be done for news to have last modified date?

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Answer by Tomasz Adamusiak · Mar 17, 2017 at 07:09 PM

Source of all the predicates can be tracked down using

GET /datafusion/api/context/list?includeAll=false

lastModified_attr_dt and createdDate_attr_dt can be used interchangeably. It's essentially when that document gets indexed by solr so it's sensitive to re-indexing. We will be adding an ingest timestamp to make it more reliable in the future.

docDate_attr comes from NFD but it's a string ao Solr date operations will not work on it. NFD sends a copy of an updated article (duplicate) and we do not reconcile the copies in any way.

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Evgeniya Drapun · Mar 20, 2017 at 12:56 PM 0
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Does it mean to filter news by time period we can rely on "createdDate_attr_dt"?

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Tomasz Adamusiak ♦ Evgeniya Drapun · Mar 21, 2017 at 11:48 AM 0
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Yes. Please let us know if you find any inconsistencies.

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