gdb debugging with postgres

[Ravi Kiran <ravi.kolanpaka@xxxxxxxxx>]

hi , 

I am trying to attach a postgres process to gdb, Since I am using only 1 client , I am using the script give by Tom Lane posted in the mailing list.

http://www.postgresql.org/message-id/bd6a35510707221030p694cd515kfeb529078557ba42@xxxxxxxxxxxxxx

I started running the client by following command psql test where test is my database.

But When I am running that script I am getting two client processes.

ravi     13368 13366  0 15:14 ?        00:00:00 postgres: checkpointer process                                 

ravi     13379 13366  0 15:14 ?        00:00:00 postgres: ravi test [local] idle  

Could any one tell me what is checkpointer process and is there any way of running the script without that process.

Thank you,

K.Ravikiran