Can Modify filter conditions work with boolean ?

[googleg]

Hi all,
I've been trying to set a condition wihin a Modify filter that would require a specific key value to equal "true". The key is of boolean type and therefore is either 'true' or 'false'.

I can't get the condition to work. It seems the Key_value_equals condition only does string comparison and does not know how to deal with booleans.

Any idea on how to do this ?

[googleg]

Ok so I was not able to have the Modify filter Condition work with boolean values. The work around I've found is to use a lua script to convert the boolean value into a string:

function conv(tag, timestamp, record)
record["is_lat_null_string"] = string.format("%s",record["is_lat_null"])
return 2, timestamp, record
end