---
source: prqlc/prqlc/src/semantic/resolver/mod.rs
expression: "resolve_derive(r#\"\n let subtract = a b -> a - b\n\n from employees\n derive {\n net_salary = subtract gross_salary tax\n }\n \"#).unwrap()"
---
- RqOperator:
name: std.sub
args:
- Ident:
- this
- employees
- gross_salary
span: "1:128-140"
- Ident:
- this
- employees
- tax
span: "1:141-144"
span: "1:119-144"
alias: net_salary