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We are using SharePoint 2013 on-premise. I have a managed metadata column Wiki Categories. After reset index and full crawl, I found several fields have the name wiki. I marked them as refinable and full crawl again. However none of them can refine anything when setup in the search page refiner.

My question is, how can I match a column and its crawled property beside guess through their "naming"?

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When search performs full crawl, it generates a crawled property for each of the managed metadata columns. Crawled property for site columns are always prefixed with ows_ and the spaces in site column name are encoded as _x0020_.

So in your case it will be ows_Wiki_x0020_Categories (Provided this name doesn't exists)

To use this as a refiner, you need to associate this property with a managed property. For that you can either create a new Managed Property or use an existing one (RefinableString00 - RefinableString99). Remember to mark each of these managed properties as - Queryable, Retrievable and Refinable.

Now you can edit the Search Refinement properties and add the new Refiner you created above.

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  • In the search schema page, I searched with "wiki" keyword and get following crawled properties: ows_r_MTXT_WikiField ows_taxId_Wiki_x0020_Page_x0020_Categories, ows_Wiki_x0020_Page_x0020_Categories, ows_WikiField, ows_wikipage. I tested the first 3 and none of them return expected refine results. I need to full crawl again and again during test. My question is, I need to repeatly full crawl and blind guess the matching property?
    – Mark L
    Jan 5, 2015 at 1:31

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