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Dynamic variable fields generation

victorsalazar
Explorer

Hello Splunk Community

I would like to know if I can create a new column field from a multivalue field

MV field = 

1, 2, 3, 4 

then I have another MV field

a, b,c,d 

after that I want my search result to look like in the pictureq_splunk.png

Thanks in advance

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0 Karma
1 Solution

ITWhisperer
SplunkTrust
SplunkTrust

mvzip the two mv fields together, mvexpand to split into multiple events, rex out the two values, eval a new field using one field value for the name and the other field for the value, then use stats to join the events back together

| streamstats count as event_no
| eval combined=mvzip(field1, field2)
| mvexpand combined
| rex field=combined "(?<key>[^,]*),(?<value>.*)"
| eval {key}=value
| stats values(*) as * by event_no

View solution in original post

victorsalazar
Explorer

Thanks a lot both answer solved my problem

0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

mvzip the two mv fields together, mvexpand to split into multiple events, rex out the two values, eval a new field using one field value for the name and the other field for the value, then use stats to join the events back together

| streamstats count as event_no
| eval combined=mvzip(field1, field2)
| mvexpand combined
| rex field=combined "(?<key>[^,]*),(?<value>.*)"
| eval {key}=value
| stats values(*) as * by event_no

richgalloway
SplunkTrust
SplunkTrust

You already have two MV fields so it's not clear what field you want to create.

To produce the example output from the example inputs, try this query.

| makeresults | eval x="1,2,3,4", y="a,b,c,d" | eval x=split(x,","), y=split(y,",")
```The above just generates test data```
| eval z=mvzip(y,x)
| mvexpand z
| eval z=split(z,",") | eval h=mvindex(z,0), v=mvindex(z,1)
| fields h,v
| fields - _*
| transpose header_field=h
| fields - column
---
If this reply helps you, Karma would be appreciated.
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