Config file 1.radiusd.conf ,2.postgresql.conf to use postgresql

[nake116 nake116]

I want to use postgresql , and I config file follow guide please tell me it 
is true ?

and how to config it to use postgresql ,It only 2 file to config or is more 
?

1.radiusd.conf
------------------------------------------------------------------------------
$INCLUDE  ${confdir}/postgresql.conf
authorize {
        preprocess
#       auth_log
#       chap
#       attr_filter
#       eap
#       suffix
#       sql
        files
        noresetcounter ---------->what is for ?
}
session {
        radutmp
        sql
}
accouting {
        acct_unique
        detail
        sql
#       main_pool
}
-------------------------------------------------------------------------
2. postgresql.conf
   sql{
driver="rlm_sql_postgresql"
   server="localhost"
   login = "postgres"
   password = "postgres"
   radius_db="radiusdb"

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