From 1e0afd584c12ff624259f03d8a6ab5f892c2c0cf Mon Sep 17 00:00:00 2001 From: Mike Bayer Date: Mon, 19 Oct 2015 12:17:37 -0400 Subject: - Fixed regression in 1.0 where new feature of using "executemany" for UPDATE statements in the ORM (e.g. :ref:`feature_updatemany`) would break on Postgresql and other RETURNING backends when using server-side version generation schemes, as the server side value is retrieved via RETURNING which is not supported with executemany. fixes #3556 --- lib/sqlalchemy/orm/persistence.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'lib') diff --git a/lib/sqlalchemy/orm/persistence.py b/lib/sqlalchemy/orm/persistence.py index d89a93dd3..71d62c79b 100644 --- a/lib/sqlalchemy/orm/persistence.py +++ b/lib/sqlalchemy/orm/persistence.py @@ -645,7 +645,7 @@ def _emit_update_statements(base_mapper, uowtransaction, assert_singlerow = connection.dialect.supports_sane_rowcount assert_multirow = assert_singlerow and \ connection.dialect.supports_sane_multi_rowcount - allow_multirow = not needs_version_id or assert_multirow + allow_multirow = assert_multirow and not needs_version_id if hasvalue: for state, state_dict, params, mapper, \ -- cgit v1.2.1