Multiple truncate support for Postgres

lib/adapter_extensions/adapters/abstract_adapter.rb

@@ -5,7 +5,7 @@ module AdapterExtensions::AbstractAdapter
   def truncate(table_name, options=nil)
     statement = [
       'TRUNCATE TABLE',
-      table_name,
+      [table_name].flatten.join(','),
       options
     ].compact.join(' ')
     execute(statement)
@@ -41,4 +41,4 @@ def do_bulk_load(file, table_name, options={})
     raise NotImplementedError, "do_bulk_load is an abstract method"
   end
 
-end
+end

test/abstract_adapter_test.rb

@@ -32,6 +32,13 @@ def test_truncate
     assert_equal "TRUNCATE TABLE #{table_name}", adapter.query
   end
 
+  def test_multi_truncate
+    table_names = ['foo', 'bar']
+    adapter.truncate(table_names)
+    assert_equal "TRUNCATE TABLE #{table_names.join(',')}", adapter.query
+  end
+
+
   def test_support_select_into_table_should_return_false
     assert_equal false, adapter.support_select_into_table?
   end