How to report on the top 10 fields when logs have a variable number of key value pairs that are numeric?

[plynch52]

I have log records with a variable number of KV (key value) pairs. Both the field and the values are numeric. The following search parses all of the log records correctly and builds a very long row of results given that there are thousands of potential key values to sum.
I have a transforms.conf & props.conf setup

[root@splunk local]# cat transforms.conf 
[get_rule_stat]
REGEX = ([0-9]+)=([0-9]+)
FORMAT = $1::$2
MV_ADD =true
CLEAN_KEYS = false

[get_rule_id]
REGEX =(?<_KEY_1>[0-9]+)=(?<_VAL_1>[0-9]+)
MV_ADD = true
CLEAN_KEYS = false
--------
[root@splunk local]# cat props.conf 
[ScoutShield]
KV_MODE = multi
REPORT-Stats = get_rule_stat
REPORT-R-ID = get_rule_id
---




source="qa_debug.log" host="splunk.localdomain" sourcetype="ScoutShield" 
| rex field=_raw "(?ms)(?=[^N]*(?:NetDefender Rule Hits Digest|N.*NetDefender Rule Hits Digest))^(?P[^\\[]+)[^\\]\\n]*\\]\\[(?P[^\\]]+)\\]\\[(?P\\d+)\\]\\[(?P\\d+)[^\\]\\n]*\\]\\[(?P[^\\]]+)" offset_field=_extracted_fields_bounds 
| rex field=stats max_match=100 "(?\d*=\d*)" 
|stats sum(*)  
| addtotals   fieldname=TotalHits 
| rename sum(*) as * 

What I would like to do is report on the top fields (as in top 10 with largest count) or to do a timechart with only those fields where the fields belong to the top 10.

It seems as though I can only use * for the field names, and there isn't a way to sub set the names.
Any suggestions would be appreciated.

[somesoni2 · Accepted solution]

Assuming your field extraction is working fine and you're getting fields with numeric names, give this a try

your base search | table _time 1* 2* 3* 4* 5* 6* 7* 8* 9* 0*
| untable _time fieldnames fieldvalues

Once you get one row for each field using above search, your run searches like this

Top 10 fields based on count

...above search.. | top fieldnames 

Top 10 fields based on fieldvalues column

...above search.. | sort 10 -fieldvalues

Top 10 based on sum of fieldvalues

...above search.. | stats sum(fieldvalues) as fieldvalues by fieldnames | sort 10 -fieldvalues