fix postgres command line (#2272)

database/postgres/psqlcmd.pm

@@ -29,10 +29,6 @@ sub new {
     my ($class, %options) = @_;
     my $self  = {};
     bless $self, $class;
-    # $options{options} = options object
-    # $options{output} = output object
-    # $options{exit_value} = integer
-    # $options{noptions} = integer
 
     if (!defined($options{output})) {
         print "Class psqlcmd: Need to specify 'output' argument.\n";
@@ -188,6 +184,7 @@ sub command_execution {
         command_options =>  join(' ', @{$self->{args}}) . ' -c "' . $options{request} . '"',
         wait_exit => 1,
         redirect_stderr => 1,
+        no_quit => 1,
         options => { timeout => 30 }
     );