Splunk Search

Join with different fields names.

brodde
Engager

Hi,

I'm trying to port some SQL queries we wrote to Splunk but whereas with SQL I can specify which columns to join whatever their names are I couldn't replicate that in Splunk.

Here's an attempt using aliases (rename didnt work either) :

   sourcetype="call"
    | join type=left callerID as userId
       [search sourcetype="user"
       | fields userId]
    | table event_id callerID userId

Thanks !

Tags (1)

martin_mueller
SplunkTrust
SplunkTrust

Rename certainly works.

If you have two sources like this:

user, field1
foo, value2

and like this:

userId, field2
foo, value2

you can do a search like this:

sourcetype=st1 | rename user as userId | join userId [search sourcetype=st2]

to get this:

userId, field1, field2
foo, value1, value2
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!

Monitoring AI Agents with Splunk Observability Cloud

Let’s say I’m running a travel planning AI app in production. A user asks for three concise hotel options in ...

[Puzzles] Solve, Learn, Repeat: Tiling

This puzzle (first published here) is based on finding groups of tessellated tiles (inspired by floor tiles I ...

SOK it to Me: Top 3 Benefits of Using Splunk Operator on Kubernetes that’ll Make ...

    Thursday, July 9, 2026  |  11:00AM–12:00PM PDT Duration: 1 hour (includes Q&A) Managing can feel like a ...