Retrieving table from external data (row identification?)

Hello,

I'm coding a SNMP Agent which must generate a table with external data
from a database.

I'm trying to use table iterator from code skeleton generated with
mib2c.iterate.conf.

When I use snmptable on the agent,  get_first_data_point function is
executed every time one column is consulted, so I suppose I must load
data for consulted row in data context.

 The problem is... How can I identify which row (index) is consulted
from get_first_data_point, and use this to retrieve the correct data row
from database?

I have reviewed the only similar example, netSnmpHostTable_access.c, but
I cannot retrieve anything from this table.


Regards,

PS: using NET-SNMP 5.1.2


-- 
********************
Victor M. Palacio
********************

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