diff options
Diffstat (limited to 'lib/sqlalchemy/sql/crud.py')
| -rw-r--r-- | lib/sqlalchemy/sql/crud.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/crud.py b/lib/sqlalchemy/sql/crud.py index 8b4950aa3..174a1c131 100644 --- a/lib/sqlalchemy/sql/crud.py +++ b/lib/sqlalchemy/sql/crud.py @@ -943,6 +943,9 @@ def _get_stmt_parameter_tuples_params( # add it to values() in an "as-is" state, # coercing right side to bound param + # note one of the main use cases for this is array slice + # updates on PostgreSQL, as the left side is also an expression. + col_expr = compiler.process( k, include_table=compile_state.include_table_with_column_exprs ) @@ -952,6 +955,12 @@ def _get_stmt_parameter_tuples_params( elements.BindParameter(None, v, type_=k.type), **kw ) else: + if v._is_bind_parameter and v.type._isnull: + # either unique parameter, or other bound parameters that + # were passed in directly + # set type to that of the column unconditionally + v = v._with_binary_element_type(k.type) + v = compiler.process(v.self_group(), **kw) values.append((k, col_expr, v)) |