2 files changed, 7 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
index 08406e6b2b..34036d8a1d 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
@@ -51,9 +51,10 @@ module ActiveRecord
       end
 
       # Lists the valid migration options
-      def migration_keys
-        [:limit, :precision, :scale, :default, :null, :collation, :comment]
+      def migration_keys # :nodoc:
+        column_options_keys
       end
+      deprecate :migration_keys
 
       private
 
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 d7e2818e35..7d602faf30 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -122,7 +122,7 @@ module ActiveRecord
         checks = []
         checks << lambda { |c| c.name == column_name }
         checks << lambda { |c| c.type == type } if type
-        migration_keys.each do |attr|
+        column_options_keys.each do |attr|
           checks << lambda { |c| c.send(attr) == options[attr] } if options.key?(attr)
         end
 
@@ -1172,6 +1172,9 @@ module ActiveRecord
       end
 
       private
+        def column_options_keys
+          [:limit, :precision, :scale, :default, :null, :collation, :comment]
+        end
 
         def add_index_sort_order(quoted_columns, **options)
           if order = options[:order]