Fix Array column null defauls #339

mymarilyn · Nov 5, 2022 · 087d6c9 · 087d6c9
1 parent 57ad361
commit 087d6c9
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/clickhouse_driver/columns/arraycolumn.py b/clickhouse_driver/columns/arraycolumn.py
@@ -32,7 +32,7 @@ def __init__(self, nested_column, **kwargs):
         self.nested_column = nested_column
         self._write_depth_0_size = True
         super(ArrayColumn, self).__init__(**kwargs)
-        self.null_value = [nested_column.null_value]
+        self.null_value = []
 
     def write_data(self, data, buf):
         # Column of Array(T) is stored in "compact" format and passed to server

diff --git a/tests/test_settings.py b/tests/test_settings.py
@@ -126,9 +126,9 @@ class InputFormatNullTestCase(BaseTestCase):
         ('a Int8, b String', [(None, None)], [(0, '')], '0\t\n'),
         ('a LowCardinality(String)', [(None, )], [('', )], '\n'),
         ('a Tuple(Int32, Int32)', [(None,)], [((0, 0), )], '(0,0)\n'),
-        ('a Array(Array(Int32))', [(None,)], [([[0]],)], '[[0]]\n'),
+        ('a Array(Array(Int32))', [(None,)], [([],)], '[]\n'),
         ('a Map(String, UInt64)', [(None,)], [({},)], '{}\n'),
-        ('a Nested(i Int32)', [(None, )], [([0], )], '[0]\n')
+        ('a Nested(i Int32)', [(None, )], [([], )], '[]\n')
     ])
     def test_input_format_null_as_default(self, spec, data, res, cli_res):
         client_settings = {'input_format_null_as_default': True}