ef="https://nightlies.apache.org/flink/flink-docs-release-1.18/docs/dev/datastream/event-time/generating_watermarks/#dealing-with-idle-sources">source idleness timeouts</a>
in <a href="https://nightlies.apache.org/flink/flink-docs-master/docs/dev/table/concepts/time_attributes/#advanced-watermark-features">pure SQL via hints</a>. Previously, these features were only available in the DataStream API.</p>
<p><strong>More Information</strong></p>
<ul>
<li><a href="https://nightlies.apache.org/flink/flink-docs-r