lidavidm commented on code in PR #4098:
URL: https://github.com/apache/arrow-adbc/pull/4098#discussion_r2972509260
##########
python/adbc_driver_postgresql/tests/test_dbapi.py:
##########
@@ -586,3 +586,90 @@ def test_server_terminates_connection(postgres_uri: str)
-> None:
with pytest.raises(Exception):
with conn2.cursor() as cur:
cur.execute("SELECT 1")
+
+
+# Tests for issue #3549: Cannot use null values as bound parameters
+def test_bind_null_insert(postgres: dbapi.Connection) -> None:
+ """Test INSERT with None parameter (issue #3549)."""
+ with postgres.cursor() as cur:
+ cur.execute("DROP TABLE IF EXISTS test_null_binding")
+ cur.execute("CREATE TABLE test_null_binding(a TEXT, b INT)")
+ # This should not raise an error about mapping Arrow type 'na' to
Postgres type
+ cur.execute("INSERT INTO test_null_binding VALUES ($1, $2)", ("hello",
None))
+ postgres.commit()
Review Comment:
Maybe query the data back and ensure it's as expected?
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