1 files changed, 0 insertions, 5 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb
index 5031605c2a..14394bbaf5 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb
@@ -4,11 +4,6 @@ module ActiveRecord
   module ConnectionAdapters
     module PostgreSQL
       module ColumnDumper # :nodoc:
-        # Adds +:array+ as a valid migration key
-        def migration_keys
-          super + [:array]
-        end
-
         private
           def prepare_column_options(column)
             spec = super