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Lookup command doesn't support dot notation in field name

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Hi, I'm working with Threatconnect lookup created by their add on, one of the kvstores has one field within a collection, the field name in the kvstore definition is tag, that field has multiple values for tag.name. For example, one row will be like the following: webLink: https://app.threatconnet.com rating: 5.0 confidence: 80 indicator: 101.1.8.1 tag.name: malware .name: Corebot .name: Ransomware ![alt text][1] The field tag is part of the supported fields, however, I'm not able to make searches over that field using lookup command If I use `|lookup tci indicator as dest OUTPUT tag as tag | table dest, tag ` the tag column is empty. If I use `|lookup tci indicator as dest OUTPUT tag.name as tag | table dest, tag` I get an splunk error **"Error in 'lookup' command: Could not find all of the specified destination fields in the lookup table."** I would like to use search command to find custom tag.name but it doesn't work. Notice that the tag field has values because when I use the command `|inputlookup tci |search tag.name=Corebot` I get information in that column. I would like to know if there is possible to use lookup command to retrieve tag.name. I know that I can use a subsearch with the inputlookup command, but I think it is not efficient. Thanks in advance for your help. [1]: /storage/temp/275823-splunkticketlookup.png

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