#1 find failed

[feng yd]

fork a proccess, and execute find method which inherited from ORM.
if the parent process exits first, the find method will failed, and prints information as follows:
Don't know how to verify whether error was caused by connection abort! at /usr/lib/perl5/site_perl/5.8.6/ORM/Db
/DBI/PgSQL.pm line 267.
fatal: ORM::Db::DBI->select(): DBI Error 7: server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
, Query="SELECT
DISTINCT "DM_Volume".*
FROM
"DM_Volume"
"
if the parent process exits after child, it will succeed.