diff --git a/.liquibase/Data_alias/basic/2019.1.4/changelog.xml b/.liquibase/Data_alias/basic/2019.1.4/changelog.xml
index 0fcebf1bb9299179b16abf5faa80b251692f5bc9..e5c1d61bf029fdac755ff098d5350332ce4ffd75 100644
--- a/.liquibase/Data_alias/basic/2019.1.4/changelog.xml
+++ b/.liquibase/Data_alias/basic/2019.1.4/changelog.xml
@@ -4,8 +4,6 @@
     
     <include relativeToChangelogFile="true" file="update_TaskType_Task.xml"/>
     
-    <include relativeToChangelogFile="true" file="removeTaskCode.xml"/>
-
     <include relativeToChangelogFile="true" file="activity_add_parent.xml"/>
     <include relativeToChangelogFile="true" file="task_add_parent.xml"/>
 
diff --git a/.liquibase/Data_alias/basic/2019.1.4/removeTaskCode.xml b/.liquibase/Data_alias/basic/2019.1.4/removeTaskCode.xml
deleted file mode 100644
index 6ec2c773c5db07904d0302f9d16fa92f03da0863..0000000000000000000000000000000000000000
--- a/.liquibase/Data_alias/basic/2019.1.4/removeTaskCode.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<?xml version="1.1" encoding="UTF-8" standalone="no"?>
-<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.6.xsd">
-<changeSet author="j.goderbauer" id="598345d1-691b-4cae-b1c0-44c9c48705c8">
-    <dropNotNullConstraint tableName="TASK" columnName="CODE" columnDataType="INTEGER"/>
-    <update tableName="TASK">
-        <column name="CODE"/>
-    </update>
-    <rollback>
-        <addNotNullConstraint tableName="TASK" columnName="CODE" />
-        <!--the update which sets everything to null cannot be rolled back-->
-    </rollback>
-</changeSet>
-</databaseChangeLog>