Error with building table that shows dead messages in RabbitMQ

[dbonetto]

I'm trying to build a simple table showing the dead messages in RabbitMQ.

In the data-explorer tab I'm running this query:
builtin:tech.rabbitmq.topN_queue_messages_ready:filter(in("queue", entitySelector("entityName.contains(~"dead~")"))):sort(value(auto,descending)):limit(100)

but it's not working due to:
Metric selector parse error: Illegal criterion: `entitySelector("entityName.contains(~"dead~")")`

What am I doing wrong?
Thank you in advance for your time and suggestions!

[abbachr]

Entity selectors can only be applied to entity dimensions, the "queue" dimension in this metric is of type String.

[dbonetto]

Thanks for your reply!

Is there a way to apply a filter "contains" on the queue dimension then? I tried but I couldn't find a way to do it. Most likely it's just my poor understanding of the syntax, sorry if it's a basic question...

[abbachr · Accepted solution]

filter(contains("queue", "dead")) should do the trick.

Will be hopefully added to the documentation soon.

[dbonetto]

Thank you, that's very helpful and solved my issue!