2 files changed, 2 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
index 756c221fad..a3082b8f01 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb
@@ -237,7 +237,6 @@ module ActiveRecord
       #  add_limit_offset!('SELECT * FROM suppliers', {:limit => 10, :offset => 50})
       # generates
       #  SELECT * FROM suppliers LIMIT 10 OFFSET 50
-
       def add_limit_offset!(sql, options)
         if limit = options[:limit]
           sql << " LIMIT #{sanitize_limit(limit)}"
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 3ec7dd02a4..8bae50885f 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -279,12 +279,11 @@ module ActiveRecord
         raise NotImplementedError, "change_column is not implemented"
       end
 
-      # Sets a new default value for a column.  If you want to set the default
-      # value to +NULL+, you are out of luck.  You need to
-      # DatabaseStatements#execute the appropriate SQL statement yourself.
+      # Sets a new default value for a column.
       # ===== Examples
       #  change_column_default(:suppliers, :qualification, 'new')
       #  change_column_default(:accounts, :authorized, 1)
+      #  change_column_default(:users, :email, nil)
       def change_column_default(table_name, column_name, default)
         raise NotImplementedError, "change_column_default is not implemented"
       end