1 files changed, 1 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index 6704843c07..069346253a 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -106,6 +106,7 @@ module ActiveRecord
         @schema_cache        = SchemaCache.new self
         @visitor             = nil
         @prepared_statements = false
+        @quoted_column_names, @quoted_table_names = {}, {}
       end
 
       class Version