YugaByte/yugabyte-db enables yb.port.rowsecurity regress test

The YugaByte/yugabyte-db project has announced updates in version 2025.2.7.0-b30, as detailed in its GitHub release notes. The yb.port.rowsecurity regress test, previously disabled due to unsupported functionality, has been re-enabled following the introduction of transactional DDL support. This change includes enabling the preview flag ysql_yb_enable_ddl_savepoint_support, which impacts the entire yb_pg_auth_schedule but does not alter other tests. Additionally, cleanup statements that previously handled objects left behind by ROLLBACK have been removed, as transactional DDL now ensures proper rollback behavior. Updates to expected outputs address changes in RLS policy quals and partition alias naming conventions, aligning the test with upstream standards.

Operators should verify whether the preview flag ysql_yb_enable_ddl_savepoint_support is compatible with their existing configurations and workloads. Since this flag impacts the broader yb_pg_auth_schedule beyond the specific test, it is essential to assess potential side effects on other tests or features. Additionally, any scripts or automation relying on previous cleanup statements or alias naming conventions may require adjustments to accommodate these changes.