1 files changed, 2 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index a57a532ba2..71a84011bc 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -474,6 +474,7 @@ module ActiveRecord
       def reconnect!
         clear_cache!
         @connection.reset
+        @open_transactions = 0
         configure_connection
       end
 
@@ -1381,7 +1382,7 @@ module ActiveRecord
         UNIQUE_VIOLATION      = "23505"
 
         def translate_exception(exception, message)
-          case exception.result.error_field(PGresult::PG_DIAG_SQLSTATE)
+          case exception.result.try(:error_field, PGresult::PG_DIAG_SQLSTATE)
           when UNIQUE_VIOLATION
             RecordNotUnique.new(message, exception)
           when FOREIGN_KEY_VIOLATION