dplyr-mutate.md
In duckplyr: A 'DuckDB'-Backed Version of 'dplyr'

can't overwrite column active bindings (#6666)

Code
  duckplyr_mutate(df, y = {
    x <<- 2
    x
  })
Condition
  Error in `mutate()`:
  i In argument: `y = { ... }`.
  Caused by error:
  ! unused argument (base::quote(2))

Code
  duckplyr_mutate(df, .by = g, y = {
    x <<- 2
    x
  })
Condition
  Error in `mutate()`:
  i In argument: `y = { ... }`.
  i In group 1: `g = 1`.
  Caused by error:
  ! unused argument (base::quote(2))

can't share local variables across expressions (#6666)

Code
  duckplyr_mutate(df, x2 = {
    foo <- x
    x
  }, y2 = {
    foo
  })
Condition
  Error in `mutate()`:
  i In argument: `y2 = { ... }`.
  Caused by error:
  ! object 'foo' not found