title: What is the default nullable constraint setting for a liquibase column?
body: <p>I'm creating a new table, like this:</p>
  
  <pre><code>    &lt;createTable tableName="myTable"&gt;
          &lt;column name="key" type="int" autoIncrement="true"&gt;
              &lt;constraints primaryKey="true" primaryKeyName="PK_myTable" nullable="false"/&gt;
          &lt;/column&gt;
          &lt;column name="name" type="nvarchar(40)"&gt;
              &lt;constraints nullable="false"/&gt;
          &lt;/column&gt;
          &lt;column name="description" type="nvarchar(100)"&gt;
              &lt;constraints nullable="true"/&gt;
          &lt;/column&gt;
      &lt;/createTable&gt;
  </code></pre>
  
  <p>As far as the <code>nullable</code> constraint, if I omit that attribute what is the default setting?</p>
  
  <p>E.g.,
  If I only did this:</p>
  
  <pre><code>&lt;column name="description" type="nvarchar(100)"/&gt;
  </code></pre>
  
  <p>...would the column be nullable? </p>
  
  <p><strong>More importantly, where is the documentation that specifies this</strong> (as I have other questions like this)?</p>
  
  <p>I looked here: <a href="http://www.liquibase.org/documentation/column.html" rel="noreferrer">Liquibase Column Tag</a>, but it only says ambiguously:</p>
  
  <blockquote>
    <p>nullable - Is column nullable?</p>
  </blockquote>