How do I replace null values at index time rather than search time?

[jackreeves]

How do I replace null values at index time rather than search time?

Tried adding this to props.conf file but it didn't make a difference.
SEDCMD-replaceblanks = s/,,/,Null,/g

I know I can do a fillnull values function within a search but would rather do this at the point of indexing
Could someone give me some advice?

Many thanks

[harsmarvania57]

Can you please provide your props.conf configuration with some sample data ?

[jackreeves]

Here is the props.conf example:

[example]
DATETIMECONFIG =
INDEXEDEXTRACTIONS = csv
KVMODE = none
NOBINARYCHECK = true
SHOULDLINEMERGE = false
TIMESTAMPFIELDS = "Date Closed"
TIMEFORMAT = %d/%m/%Y
category = Structured
pulldowntype = 1
disabled = false
HEADERFIELDLINENUMBER = 1
SEDCMD-replaceblanks = s/,,/,Null,/g

[adonio]

hello there,

checkout this answer by @somesoni2

https://answers.splunk.com/answers/434015/is-it-possible-to-replace-null-fields-at-index-tim.html

hope it helps

[jackreeves]

I did try this answer before posting but doesn't appear to have worked.