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

can't overwrite column active bindings (#6666)

Code
  duckplyr_summarise(df, y = {
    x <<- x + 2L
    mean(x)
  })
Condition
  Error in `summarise()`:
  i In argument: `y = { ... }`.
  Caused by error:
  ! unused argument (base::quote(3:6))

Code
  duckplyr_summarise(df, .by = g, y = {
    x <<- x + 2L
    mean(x)
  })
Condition
  Error in `summarise()`:
  i In argument: `y = { ... }`.
  i In group 1: `g = 1`.
  Caused by error:
  ! unused argument (base::quote(3:4))

can't use `.by` with `.groups`

Code
  duckplyr_summarise(df, .by = x, .groups = "drop")
Condition
  Error in `summarise()`:
  ! Can't supply both `.by` and `.groups`.

non-summary results are deprecated in favor of `duckplyr_reframe()` (#6382)

Code
  out <- duckplyr_summarise(df, x = which(x < 3))
Condition
  Warning:
  Returning more (or less) than 1 row per `summarise()` group was deprecated in dplyr 1.1.0.
  i Please use `reframe()` instead.
  i When switching from `summarise()` to `reframe()`, remember that `reframe()` always returns an ungrouped data frame and adjust accordingly.

Code
  out <- duckplyr_summarise(df, x = which(x < 3), .by = g)
Condition
  Warning:
  Returning more (or less) than 1 row per `summarise()` group was deprecated in dplyr 1.1.0.
  i Please use `reframe()` instead.
  i When switching from `summarise()` to `reframe()`, remember that `reframe()` always returns an ungrouped data frame and adjust accordingly.