Splunk Search

How do I simulate doing a left join or outer join using the "lookup" command?

bcronrath
Path Finder

Issue I am running into right now is I have a result set that I want to pull in threshold values that reside in a lookup CSV file. I am looking up based on a cluster title field, but ideally, what I want to happen is for every single cluster title in this lookup file to produce a row, even if there were no results in my actual search for that cluster. Is there a way I can do this?

0 Karma
1 Solution

somesoni2
Revered Legend

Try like this (assuming your current search gives a results set with unique values of field cluster_title)

your current search giving result with fields cluster_title and others
| append [| inputlookup yourlookup.csv | table cluster_title ]
| stats values(*) as * by cluster_title

View solution in original post

somesoni2
Revered Legend

Try like this (assuming your current search gives a results set with unique values of field cluster_title)

your current search giving result with fields cluster_title and others
| append [| inputlookup yourlookup.csv | table cluster_title ]
| stats values(*) as * by cluster_title

bcronrath
Path Finder

works perfectly thank you so much!

0 Karma

cmerriman
Super Champion

you can try to use ...|appendpipe [stats count by clusterTitle |join max=0 clusterTitle [|inputlookup clusterTable.csv]|fields - count]|stats values(*) by clusterTitle

or something along those lines. Without knowing your actual syntax/data, that's the best I got.

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Automating Threat Operations and Threat Hunting with Recorded Future

    Automating Threat Operations and Threat Hunting with Recorded Future June 29, 2026 | Register   Is your ...

Keep the Learning Going with the New Best of .conf Hub

Hello Splunkers, With .conf26 getting closer, there’s already a lot of excitement building around this year’s ...

Splunk Community Badges!

  Hey everyone! Ready to earn some serious bragging rights in the community? Along with our existing badges ...