filter_numeric_unsupported

Summary

filter expressions only support string operators

Help

use like, matches, contains, is, not against name, src, or label keys

Details

When this fires

A filter string used a numeric operator (>, <, ==, arithmetic, ...) against a filter field. Filters in adapters and collectors only deal in strings: the resolver doesn't know how to turn name, src, or label values into numbers.

What to check

Switch to a string op: is, not, like (glob), matches (regex), contains, in. Filters work on name, src, or any defined label key.

# broken
filter = "name > 0"
# fixed
filter = "name like \"cpu.*\""

Surfaces during nanook check when validating filter strings. See @/docs/reference/dsl/filter.md.