Variables can’t be composed inside strings / LIKE patterns in Query Builder (e.g. '$env-suffix', LIKE $env%)

[revmag]

Is your feature request related to a problem?

In SigNoz dashboard Query Builder, variables work only as standalone RHS values (e.g. field = $var / field IN $var). There’s no way to compose variables as part of a string or build LIKE patterns inline.

Describe the solution you'd like

I have a dashboard variable:
environment → values like prod, staging etc.
And a metric label / attribute:
cluster_name → values like prod-xyz, staging-xyz, etc.
I want to filter the panel based on $environment by composing the string:
cluster_name = '$environment-xyz'

Current behavior
Using cluster_name = 'prod-xyz' works.
Using cluster_name = '$environment-xyz' returns No Data (seems treated as a literal / variable parsing fails).

Describe alternatives you've considered

Create a separate variable for full cluster_name