Splunk Search

Use automatic lookup to match one lookup field to multiple event fields

chioverheaddoor
Explorer

I have a set of event data that contains id numbers instead of names. I have a lookup table created to match those id numbers to names. The problem is I can't figure out how to match the one lookup field "id" to all of the different variations of "id" in the event data. The event data uses fields like "assignee_id", "email_cc_id", "requester_id", and ","collaborator_id".

0 Karma

chioverheaddoor
Explorer

I actually just got it to work by nesting the lookup command and bypassing the automatic lookup I had created.

| lookup zenuserids.csv id as submitter_id OUTPUTNEW name as submittername | lookup zenuserids.csv id as requester_id OUTPUTNEW name as requestername | lookup zenuserids.csv id as assignee_id OUTPUTNEW name as assigneename | table id,submittername,requestername,assigneename

0 Karma

briancronrath
Contributor

How about joining on an evaluated field that uses an order of precedence to determine what the join will be on? You could keep all the original fields for your output, and just have the evaluated field for the purposes of joining. So something like:

[base search] | fillnull value="" | eval joiner=if(assignee_id!="",assignee_id,if(email_cc_id!="",email_cc_id,if(requester_id!="",requester_id,if(collaborator_id!="",collaborator_id,"")))) | lookup ID as joiner output ....
0 Karma

renjith_nair
Legend

@chioverheaddoors,

Try combining the fields,

eval id=coalesce(assignee_id,email_cc_id,requester_id,collaborator_id)
---
What goes around comes around. If it helps, hit it with Karma 🙂
0 Karma

chioverheaddoor
Explorer

Thank you for your fast response. I dont think that will work as I need to list all of those fields individually

0 Karma
Get Updates on the Splunk Community!

Accelerating Observability as Code with the Splunk AI Assistant

We’ve seen in previous posts what Observability as Code (OaC) is and how it’s now essential for managing ...

Integrating Splunk Search API and Quarto to Create Reproducible Investigation ...

 Splunk is More Than Just the Web Console For Digital Forensics and Incident Response (DFIR) practitioners, ...

Congratulations to the 2025-2026 SplunkTrust!

Hello, Splunk Community! We are beyond thrilled to announce our newest group of SplunkTrust members!  The ...