I have two databases i generate init changelog from one and applied to second.
for example one set among other
<changeSet author="larix (generated)" id="1615578133673-1">
<createTable tableName="table">
<column autoIncrement="true" name="id" type="INTEGER">
<constraints nullable="false"/>
</column>
...
</createTable>
</changeSet>
So when i make diif on two these db is shows me diff
<changeSet author="larix (generated)" id="1615981531924-1">
<modifyDataType columnName="id" newDataType="int" tableName="table"/>
</changeSet>
but there was no changes.