n>&nbsp;null<span class="symbol">)</span><span class="symbol">: </span><a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html"><span class="identifier">Unit</span></a></code><br/>
<a name="com.improve_future.harmonica.core.AbstractMigration$addBooleanColumn(kotlin.String, kotlin.String, kotlin.Boolean, com.improve_future.harmonica.core.RawSql, kotlin.Boolean, kotlin.String)"></a>
<code><span class="keyword">fun </span><span class="identifier">addBooleanColumn</span><span class="symbol