fix the JSON->json data type name issue

Author: jovezhong

timeplus_connect/datatypes/base.py

@@ -356,7 +356,7 @@ def _active_null(self, ctx: QueryContext):
 
 class UnsupportedType(TimeplusType, ABC, registered=False):
     """
-    Base class for ClickHouse types that can't be serialized/deserialized into Python types.
+    Base class for Timeplus types that can't be serialized/deserialized into Python types.
     Mostly useful just for DDL statements
     """
     def __init__(self, type_def: TypeDef):

timeplus_connect/datatypes/registry.py

@@ -38,9 +38,9 @@ def parse_name(name: str) -> Tuple[str, str, TypeDef]:
     elif base.startswith('variant'):
         keys, values = parse_columns(base[7:])
         base = 'variant'
-    elif base.startswith('JSON') and len(base) > 4 and base[4] == '(':
+    elif base.startswith('json') and len(base) > 4 and base[4] == '(':
         keys, values = parse_columns(base[4:])
-        base = 'JSON'
+        base = 'json'
     # timeplusd doesn't support geometric type.
     # elif base == 'Point':
     #     values = ('Float64', 'Float64')

timeplus_connect/driver/client.py

@@ -220,7 +220,7 @@ def query(self,
         :return: QueryResult -- data and metadata from response
         """
         if query and query.lower().strip().startswith('select __connect_version__'):
-            return QueryResult([[f'ClickHouse Connect v.{version()}  ⓒ ClickHouse Inc.']], None,
+            return QueryResult([[f'Timeplus Connect v.{version()}  ⓒ Timeplus Inc.']], None,
                                ('connect_version',), (get_from_name('string'),))
         kwargs = locals().copy()
         del kwargs['self']