diff --git a/connector.py b/connector.py
index 5ae983d..4733d26 100644
--- a/connector.py
+++ b/connector.py
@@ -84,18 +84,27 @@ def create_ad_hoc_field(cls, db_type):
     if db_type == 'LowCardinality(String)':
         db_type = 'String'
 
+    if db_type == 'Bool':
+        db_type = 'UInt8'
+        
+    if db_type == 'LowCardinality(Nullable(String))':
+        db_type = 'String'
+
+    if db_type == 'Map(String, UInt64)':
+        db_type = 'String'        
+                       
     if db_type.startswith('DateTime'):
         db_type = 'DateTime'
 
     if db_type.startswith('Nullable'):
         inner_field = cls.create_ad_hoc_field(db_type[9 : -1])
         return orm_fields.NullableField(inner_field)
-   
+
     # db_type for Deimal comes like 'Decimal(P, S) string where P is precision and S is scale'
     if db_type.startswith('Decimal'):
         nums = [int(n) for n in db_type[8:-1].split(',')]
         return orm_fields.DecimalField(nums[0], nums[1])
-    
+
     # Simple fields
     name = db_type + 'Field'
     if not hasattr(orm_fields, name):
diff --git a/setup.py b/setup.py
index 9ccecf5..c0f204e 100644
--- a/setup.py
+++ b/setup.py
@@ -7,6 +7,16 @@
 VERSION = [0, 1, 5]
 readme = open('README.rst').read()
 
+dialects = [
+    'clickhouse{}=sqlalchemy_clickhouse.{}'.format(driver, d_path)
+
+    for driver, d_path in [
+        ('', 'base:ClickHouseDialect'),
+        ('.http', 'base:ClickHouseDialect'),
+        ('.native', 'base:ClickHouseDialect')
+    ]
+]
+
 setup(
     name='sqlalchemy-clickhouse',
     version='.'.join('%d' % v for v in VERSION[0:3]),
@@ -32,9 +42,7 @@
         'sqlalchemy_clickhouse': ['LICENSE.txt'],
     },
     entry_points={
-        'sqlalchemy.dialects': [
-            'clickhouse=sqlalchemy_clickhouse.base',
-        ]
+        'sqlalchemy.dialects': dialects
     },
     classifiers = [
         'Development Status :: 5 - Production/Stable',