From 3ab8f420167443abdebf0a71ca63a88e2a76347f Mon Sep 17 00:00:00 2001
From: Igor Kulikov <ikulikov@thingsboard.io>
Date: Tue, 5 May 2020 15:12:30 +0300
Subject: [PATCH] Cassandra to SQL boolean column fix

---
 .../service/install/migrate/CassandraToSqlColumn.java       | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/application/src/main/java/org/thingsboard/server/service/install/migrate/CassandraToSqlColumn.java b/application/src/main/java/org/thingsboard/server/service/install/migrate/CassandraToSqlColumn.java
index 6ade15a403..6bbb076fad 100644
--- a/application/src/main/java/org/thingsboard/server/service/install/migrate/CassandraToSqlColumn.java
+++ b/application/src/main/java/org/thingsboard/server/service/install/migrate/CassandraToSqlColumn.java
@@ -97,7 +97,11 @@ public class CassandraToSqlColumn {
 
     public String getColumnValue(Row row) {
         if (row.isNull(index)) {
-            return null;
+            if (this.type == CassandraToSqlColumnType.BOOLEAN) {
+                return Boolean.toString(false);
+            } else {
+                return null;
+            }
         } else {
             switch (this.type) {
                 case ID: