Remove outdated example from group_by docs

It looks like this syntax was supported a long time ago (the example was added in 0.1.0), but it is definitely not supported currently.
zazaian · Feb 2, 2017 · f278794 · f278794
1 parent 4785207
commit f278794
Showing 1 changed file with 0 additions and 3 deletions.
diff --git a/lib/ecto/query.ex b/lib/ecto/query.ex
@@ -1005,9 +1005,6 @@ defmodule Ecto.Query do
         group_by: p.category,
         select: {p.category, count(p.id)})
 
-      # Group on all fields on the Post schema
-      from(p in Post, group_by: p, select: p)
-
       # Using atoms
       from(p in Post, group_by: :category, select: {p.category, count(p.id)})