Fixed regression with contents of Cursor.description when calling

Cursor.parse() with a query that returns LOBs.

Author: anthony-tuininga

doc/src/release_notes.rst

@@ -35,6 +35,8 @@ Common Changes
     :ref:`cloud native authentication <tokenauth>` plugins for connections.
     Note that an invalid ``auth_type`` parameter will no longer raise an
     exception but will simply be ignored.
+#)  Fixed regression with contents of :data:`Cursor.description` when calling
+    :meth:`Cursor.parse()` with a query that returns LOBs.
 #)  Updated the `Jupyter notebook samples <https://github.com/oracle/
     python-oracledb/tree/main/samples/notebooks>`__ to cover recent
     python-oracledb features.

src/oracledb/impl/base/connection.pyx

@@ -223,6 +223,8 @@ cdef class BaseConnImpl:
         cursor_impl.scrollable = scrollable
         cursor_impl.arraysize = C_DEFAULTS.arraysize
         cursor_impl.prefetchrows = C_DEFAULTS.prefetchrows
+        cursor_impl.fetch_lobs = C_DEFAULTS.fetch_lobs
+        cursor_impl.fetch_decimals = C_DEFAULTS.fetch_decimals
         return cursor_impl
 
     def create_msg_props_impl(self):

tests/test_4300_cursor_other.py

@@ -1059,3 +1059,10 @@ def test_4371(cursor):
     cursor.execute("select :1 from dual", [value], fetch_decimals=True)
     rows = cursor.fetchall()
     assert isinstance(rows[0][0], decimal.Decimal)
+
+
+def test_4372(cursor):
+    "4372 - test cursor.parse() uses oracledb.defaults.fetch_lobs"
+    cursor.parse("select to_clob('some_value') from dual")
+    fetch_info = cursor.description[0]
+    assert fetch_info.type is oracledb.DB_TYPE_CLOB

tests/test_6300_cursor_other_async.py

@@ -961,3 +961,10 @@ async def test_6355(async_cursor):
     )
     rows = await async_cursor.fetchall()
     assert isinstance(rows[0][0], decimal.Decimal)
+
+
+async def test_6356(async_cursor):
+    "6356 - test cursor.parse() uses oracledb.defaults.fetch_lobs"
+    await async_cursor.parse("select to_clob('some_value') from dual")
+    fetch_info = async_cursor.description[0]
+    assert fetch_info.type is oracledb.DB_TYPE_CLOB