From eb30cb1febce323d3647527d8a63a8267c943832 Mon Sep 17 00:00:00 2001 From: Mike Bayer Date: Sun, 17 May 2009 22:20:28 +0000 Subject: - The "polymorphic discriminator" column may be part of a primary key, and it will be populated with the correct discriminator value. [ticket:1300] --- lib/sqlalchemy/sql/expression.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'lib/sqlalchemy/sql/expression.py') diff --git a/lib/sqlalchemy/sql/expression.py b/lib/sqlalchemy/sql/expression.py index 859419022..65c3c2135 100644 --- a/lib/sqlalchemy/sql/expression.py +++ b/lib/sqlalchemy/sql/expression.py @@ -1587,7 +1587,7 @@ class ColumnElement(ClauseElement, _CompareMixin): def shares_lineage(self, othercolumn): """Return True if the given ``ColumnElement`` has a common ancestor to this ``ColumnElement``.""" - return len(self.proxy_set.intersection(othercolumn.proxy_set)) > 0 + return bool(self.proxy_set.intersection(othercolumn.proxy_set)) def _make_proxy(self, selectable, name=None): """Create a new ``ColumnElement`` representing this -- cgit v1.2.1