How to exclude a certain field when summing up PromQl

Question

I have a query example_query

I summarize it by certain labels via by (name, value) like:

sum(example_query[1m]) by (name, value)

Let label I have 3 names:

• 1
• 2
• 3

That is, I can specify example_query{value="1"}, example_query{value="2"}, etc.

When summarizing. I want value=3 to be ignored. How can I achieve this?

I tried using without, but grafana gives an error