Check constraint on table in liquibase

问题

I want to create a check constraint on a table using liquibase, this is the check constaint :

alter table userprefs add constraint chk_null CHECK (updatedate IS NOT NULL OR updateuser IS NOT NULL);

I googled about it but all I can find is how to create the check constraint on a column.

How this is can be done on liquibase ?

回答1:

Liquibase does not support check constraints "natively". You need to put that into a <sql> tag:

<changeSet author="ichigo" id="1">
  <sql>
     alter table userprefs add constraint chk_null 
        CHECK (updatedate IS NOT NULL OR updateuser IS NOT NULL);
  </sql>
</changeSet>

来源：https://stackoverflow.com/questions/48460576/check-constraint-on-table-in-liquibase