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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2023-04-28 12:07:09 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2023-05-09 10:08:52 -0400 |
| commit | 4a62625d99470c8928422c4822df5234b93b6bb8 (patch) | |
| tree | 280182818aea6846f1294705357b6a0754d51df4 /lib/sqlalchemy/sql/crud.py | |
| parent | 39c8e95b1f50190ff30a836b2bcf13ba2cacc052 (diff) | |
| download | sqlalchemy-4a62625d99470c8928422c4822df5234b93b6bb8.tar.gz | |
implement FromLinter for UPDATE, DELETE statements
Implemented the "cartesian product warning" for UPDATE and DELETE
statements, those which include multiple tables that are not correlated
together in some way.
Fixed issue where :func:`_dml.update` construct that included multiple
tables and no VALUES clause would raise with an internal error. Current
behavior for :class:`_dml.Update` with no values is to generate a SQL
UPDATE statement with an empty "set" clause, so this has been made
consistent for this specific sub-case.
Fixes: #9721
Change-Id: I556639811cc930d2e37532965d2ae751882af921
Diffstat (limited to 'lib/sqlalchemy/sql/crud.py')
| -rw-r--r-- | lib/sqlalchemy/sql/crud.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/sqlalchemy/sql/crud.py b/lib/sqlalchemy/sql/crud.py index 563f61c04..16d5ce494 100644 --- a/lib/sqlalchemy/sql/crud.py +++ b/lib/sqlalchemy/sql/crud.py @@ -1344,7 +1344,7 @@ def _get_update_multitable_params( ): normalized_params = { coercions.expect(roles.DMLColumnRole, c): param - for c, param in stmt_parameter_tuples + for c, param in stmt_parameter_tuples or () } include_table = compile_state.include_table_with_column_exprs |