I have similar question as this poster: I have 2 fields: doc_a.prop.proptexta doc_a.prop.proptextb I want to identify if there are duplication using this 2 fields of doc_a. So, i tried copyto: I create a mapping and in both proptexta and proptextb put copy_to proptextab, and using the new fie…

Transform vs copy_to, text concatenation used for aggregation

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Transform vs copy_to, text concatenation used for aggregation

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