Google Cloud Storage Connector 25.4
Google Cloud Storage Connector Help

# Merge Document Fields

This script demonstrates how to merge the values of document fields.

When you extract data from a repository, the connector can produce documents that have multiple values for a single field, for example:

    #DREFIELD ATTACHMENT="attachment.txt"
    #DREFIELD ATTACHMENT="image.jpg"
    #DREFIELD ATTACHMENT="document.pdf"

This script shows how to merge the values of these fields, so that the values are contained in a single field, for example:

    #DREFIELD ATTACHMENTS="attachment.txt, image.jpg, document.pdf"

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    function handler(config, document, params)
        onefield(document,"ATTACHMENT","ATTACHMENTS")
        return true;
    end

    function onefield(document,existingfield,newfield)
        if document:hasField(existingfield) then
            local values = { document:getFieldValues(existingfield) }

            local newfieldvalue=""
            for i,v in ipairs(values) do
                if i>1 then
                    newfieldvalue = newfieldvalue ..", "
                end

                newfieldvalue = newfieldvalue..v
            end

            document:addField(newfield,newfieldvalue)
        end

        return true;
    end

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Google Cloud Storage Connector 25.4

Topic Title: Merge Document Fields