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-rw-r--r--lib/sqlalchemy/sql/crud.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/crud.py b/lib/sqlalchemy/sql/crud.py
index 452fe5d9a..9d10fbefc 100644
--- a/lib/sqlalchemy/sql/crud.py
+++ b/lib/sqlalchemy/sql/crud.py
@@ -681,7 +681,7 @@ def _warn_pk_with_no_anticipated_value(c):
"Primary key columns typically may not store NULL."
%
(c.table.fullname, c.name, c.table.fullname))
- if len(c.table.primary_key.columns) > 1:
+ if len(c.table.primary_key) > 1:
msg += (
" Note that as of SQLAlchemy 1.1, 'autoincrement=True' must be "
"indicated explicitly for composite (e.g. multicolumn) primary "