_:n34ae1d8289ee4b9ba6cee12ec2196f46xb0
<http://schema.org/description>
"In another post, we described a feature for conditional pub/sub message delivery using SQL selectors. With that (selector) approach, the publisher must attach headers to the message and the subscriber uses an SQL-based condition that references header names and values. In addition to selectors, Backendless supports another type of"
<https://backendless.com/how-to-deliver-conditional-messages-with-subtopics/>