From b12b8e0d33aa3b4d760f8f22afb3d0f46227c7cc Mon Sep 17 00:00:00 2001
From: Andrea Baccega <vekexasia@gmail.com>
Date: Thu, 6 Mar 2014 00:17:01 +0100
Subject: [PATCH] solution cannot be null in mpos database.

---
 libs/mposCompatibility.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/mposCompatibility.js b/libs/mposCompatibility.js
index 266e0cb..50d25bf 100644
--- a/libs/mposCompatibility.js
+++ b/libs/mposCompatibility.js
@@ -67,7 +67,7 @@ module.exports = function(logger, poolConfig){
             isValidBlock ? 'Y' : 'N',
             shareData.difficulty,
             typeof(shareData.error) === 'undefined' ? null : shareData.error,
-            typeof(shareData.solution) === 'undefined' ? null : shareData.solution
+            typeof(shareData.solution) === 'undefined' ? '' : shareData.solution
         ];
         connection.query(
             'INSERT INTO `shares` SET time = NOW(), rem_host = ?, username = ?, our_result = ?, upstream_result = ?, difficulty = ?, reason = ?, solution = ?',