Unable to write nullable integer values to BigQuery using Cloud Dataflow
<p>I am trying to write to a BigQuery table using Cloud Dataflow. This BigQuery table has an integer column which is set to nullable. For null values, it gives following error:</p>

<blockquote>
  <p>Could not convert value to integer. Field: ITM_QT; Value:</p>
</blockquote>

<p>But when I converted the datatype of the same column to String, it is accepting null values. </p>

<p>So is there any way to write null values to an integer column using Cloud Dataflow?</p>

<p>This error goes if I change the column datatype to String.</p>