<?xml version="1.0" encoding="UTF-8"?> <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.4.xsd" logicalFilePath="changelog-4.7"> <changeSet author="author" id="changelog-4.7"> <preConditions onFail="MARK_RAN"> <not> <indexExists indexName="user_device_user_id" /> </not> </preConditions> <createIndex tableName="tc_user_device" indexName="user_device_user_id"> <column name="userid" /> </createIndex> <createIndex tableName="tc_positions" indexName="position_deviceid_fixtime"> <column name="deviceid" /> <column name="fixtime" /> </createIndex> </changeSet> </databaseChangeLog>