Fixed #24200 -- Made introspection bypass statement cache

1 files changed, 6 insertions, 1 deletions

diff --git a/django/db/backends/oracle/introspection.py b/django/db/backends/oracle/introspection.py
index 3596368b6b..c058418ec3 100644
--- a/django/db/backends/oracle/introspection.py
+++ b/django/db/backends/oracle/introspection.py
@@ -33,6 +33,8 @@ class DatabaseIntrospection(BaseDatabaseIntrospection):
     except AttributeError:
         pass
 
+    cache_bust_counter = 1
+
     def get_field_type(self, data_type, description):
         # If it's a NUMBER with scale == 0, consider it an IntegerField
         if data_type == cx_Oracle.NUMBER:
@@ -59,7 +61,10 @@ class DatabaseIntrospection(BaseDatabaseIntrospection):
 
     def get_table_description(self, cursor, table_name):
         "Returns a description of the table, with the DB-API cursor.description interface."
-        cursor.execute("SELECT * FROM %s WHERE ROWNUM < 2" % self.connection.ops.quote_name(table_name))
+        self.cache_bust_counter += 1
+        cursor.execute("SELECT * FROM {} WHERE ROWNUM < 2 AND {} > 0".format(
+            self.connection.ops.quote_name(table_name),
+            self.cache_bust_counter))
         description = []
         for desc in cursor.description:
             name = force_text(desc[0])  # cx_Oracle always returns a 'str' on both Python 2 and 3