postgresql_sequence: use query parameters with cursor object (#65787)

changelogs/fragments/65787-postgresql_sequence_use_query_params_with_cursor.yml

@@ -0,0 +1,2 @@
+bugfixes:
+- postgresql_sequence - use query parameters with cursor object (https://github.com/ansible/ansible/pull/65787).

lib/ansible/modules/database/postgresql/postgresql_sequence.py

@@ -369,11 +369,12 @@ class Sequence(object):
                  "LEFT JOIN pg_namespace n ON n.oid = c.relnamespace "
                  "WHERE NOT pg_is_other_temp_schema(n.oid) "
                  "AND c.relkind = 'S'::\"char\" "
-                 "AND sequence_name = '%s' "
-                 "AND sequence_schema = '%s'" % (self.name,
-                                                 self.schema))
+                 "AND sequence_name = %(name)s "
+                 "AND sequence_schema = %(schema)s")
 
-        res = exec_sql(self, query, add_to_executed=False)
+        res = exec_sql(self, query,
+                       query_params={'name': self.name, 'schema': self.schema},
+                       add_to_executed=False)
 
         if not res:
             self.exists = False

test/integration/targets/postgresql_sequence/tasks/main.yml

@@ -1,3 +1,3 @@
 # Initial CI tests of postgresql_sequence module
 - import_tasks: postgresql_sequence_initial.yml
-  when: postgres_version_resp.stdout is version('9.0', '>=')
+  when: postgres_version_resp.stdout is version('9.4', '>=')