fix: accept **kwargs in Bool.__init__ for SQLAlchemy type compatibility (#706)

* chore: add CHANGELOG entry for Bool kwargs fix

* add test, move location of changelog entry

---------

Co-authored-by: Joe Spadola <joe.spadola@clickhouse.com>

Author: Bahtya

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 ### Bug Fixes
 - Async client: retry once when a pooled keep-alive connection is closed by the server and aiohttp raises `ServerDisconnectedError` with the default `"Server disconnected"` message. The existing retry path covered `"Connection reset"` and `"Remote end closed"`, but not the bare `ServerDisconnectedError()` produced by recent aiohttp versions, which surfaced as an `OperationalError("Network Error: Server disconnected")` on the first request after an idle period.
+- SQLAlchemy `Bool` type now accepts and forwards `**kwargs` to the underlying `SqlaBoolean` constructor. SQLAlchemy's `SchemaType` machinery passes internal kwargs (e.g., `_create_events`) when copying or adapting the type during ORM model use or `Table.to_metadata()`, which previously raised a `TypeError`. Fixes [#705](https://github.com/ClickHouse/clickhouse-connect/issues/705)
 
 ## 1.0.0rc1, 2026-04-22
 

clickhouse_connect/cc_sqlalchemy/datatypes/sqltypes.py

@@ -91,9 +91,9 @@ def __init__(self, type_def: TypeDef = EMPTY_TYPE_DEF):
 
 
 class Bool(ChSqlaType, SqlaBoolean):
-    def __init__(self, type_def: TypeDef = EMPTY_TYPE_DEF):
+    def __init__(self, type_def: TypeDef = EMPTY_TYPE_DEF, **kwargs):
         ChSqlaType.__init__(self, type_def)
-        SqlaBoolean.__init__(self)
+        SqlaBoolean.__init__(self, **kwargs)
 
 
 class Boolean(Bool):

tests/unit_tests/test_sqlalchemy/test_types.py

@@ -1,7 +1,7 @@
 from sqlalchemy import DateTime, Integer
 
 from clickhouse_connect.cc_sqlalchemy.datatypes.base import sqla_type_from_name, sqla_type_map
-from clickhouse_connect.cc_sqlalchemy.datatypes.sqltypes import DateTime64, Int64, LowCardinality, Nullable, QBit, String
+from clickhouse_connect.cc_sqlalchemy.datatypes.sqltypes import Bool, DateTime64, Int64, LowCardinality, Nullable, QBit, String
 
 
 def test_mapping():
@@ -30,6 +30,11 @@ def test_low_cardinality():
     assert lc_str.name == "LowCardinality(Nullable(String))"
 
 
+def test_bool_accepts_schema_kwargs():
+    # SQLAlchemy's SchemaType copy/adapt path passes internal kwargs like _create_events
+    Bool(_create_events=False)
+
+
 def test_qbit():
     qbit = sqla_type_from_name("QBit(Float32, 768)")
     assert qbit.__class__ == QBit