From fb31d08abaf7576cb8acc9a19e6ecfb931ac8a39 Mon Sep 17 00:00:00 2001
From: Ralf Becker <RalfBecker@outdoor-training.de>
Date: Sun, 3 Mar 2019 15:13:44 +0100
Subject: [PATCH] fix column_data_explode or update $col => array() gives SQL
 error writing it now as NULL (or "" if column is NOT NULL)

---
 api/src/Db.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/api/src/Db.php b/api/src/Db.php
index e02cb23bd0..25fb48239f 100644
--- a/api/src/Db.php
+++ b/api/src/Db.php
@@ -1567,7 +1567,7 @@ class Db
 					$maxlength = in_array($column_definitions[$col]['type'], array('varchar','ascii')) ? $column_definitions[$col]['precision'] : null;
 				}
 				// dont use IN ( ), if there's only one value, it's slower for MySQL
-				if (is_array($data) && count($data) == 1)
+				if (is_array($data) && count($data) <= 1)
 				{
 					$data = array_shift($data);
 				}