<?xml version="1.0" encoding="UTF-8"?>
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<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">

  <!-- Definition of TASK_COMMENT_MENTIONED_USERS table -->
  <changeSet author="task" id="2.1.0-01">
    <preConditions onFail="MARK_RAN">
      <not><tableExists tableName="TASK_COMMENT_MENTIONED_USERS"/></not>
    </preConditions>
    <createTable tableName="TASK_COMMENT_MENTIONED_USERS">
      <column name="COMMENT_ID" type="BIGINT">
        <constraints foreignKeyName="FK_TK_CM_MENT_TK_CM_01" references="TASK_COMMENTS(COMMENT_ID)" nullable="false"/>
      </column>
      <column name="MENTIONED_USERS" type="NVARCHAR(50)">
        <constraints nullable="false"/>
      </column>
    </createTable>
    <modifySql dbms="mysql">
      <append value=" ENGINE=INNODB CHARSET=UTF8 COLLATE utf8_general_ci"/>
    </modifySql>
  </changeSet>

  <changeSet author="task" id="2.1.0-02">
    <preConditions onFail="MARK_RAN">
      <not><indexExists indexName="IDX_TASK_COMMENT_MENTIONED_USERS_01" tableName="TASK_COMMENT_MENTIONED_USERS"/></not>
    </preConditions>
    <createIndex indexName="IDX_TASK_COMMENT_MENTIONED_USERS_01"
                 tableName="TASK_COMMENT_MENTIONED_USERS">
      <column name="MENTIONED_USERS" type="NVARCHAR(50)"/>
    </createIndex>
  </changeSet>

</databaseChangeLog>