diff options
Diffstat (limited to 'lib/sqlalchemy/sql/compiler.py')
| -rw-r--r-- | lib/sqlalchemy/sql/compiler.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/sqlalchemy/sql/compiler.py b/lib/sqlalchemy/sql/compiler.py index f774028f2..0eae31a1a 100644 --- a/lib/sqlalchemy/sql/compiler.py +++ b/lib/sqlalchemy/sql/compiler.py @@ -2860,6 +2860,15 @@ class SQLCompiler(Compiled): "Bind parameter '%s' conflicts with " "unique bind parameter of the same name" % name ) + elif existing.expanding != bindparam.expanding: + raise exc.CompileError( + "Can't reuse bound parameter name '%s' in both " + "'expanding' (e.g. within an IN expression) and " + "non-expanding contexts. If this parameter is to " + "receive a list/array value, set 'expanding=True' on " + "it for expressions that aren't IN, otherwise use " + "a different parameter name." % (name,) + ) elif existing._is_crud or bindparam._is_crud: if existing._is_crud and bindparam._is_crud: # TODO: this condition is not well understood. |