From 1117140adb06790ed8b0beb8b680fc6207d461a0 Mon Sep 17 00:00:00 2001
From: Ole Tange <ole@tange.dk>
Date: Sun, 10 Jul 2016 23:01:53 +0200
Subject: [PATCH] parallel: Fixed SQL racing error.

If two workers both work on the last job, the master will drop the
table when the first returns. The second should ignore the dropped
table.
---
 src/parallel | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/parallel b/src/parallel
index 4c62232e..a0f80a54 100755
--- a/src/parallel
+++ b/src/parallel
@@ -10194,7 +10194,8 @@ sub get {
     my $self = shift;
     my $sth = $self->run(@_);
     my @retval;
-    while(1) {
+    # If $sth = 0 it means the table was dropped by another process
+    while($sth) {
 	my @row = $sth->fetchrow_array();
 	@row or last;
 	push @retval, \@row;