memory leak checking

Hello PostgreSQL Hackers, What is the standard memory leak checking policy for the PostgreSQL codebase? I know there is some support for valgrind -- is the test suite being run continuously with valgrind on the build farm? Is there any plan to support clang's AddressSanitizer? I've seen a thread

Resource cleanup callbacks for foreign data wrappers

Hello All, We are using the foreign data wrapper API to integrate YugaByte DB ( https://github.com/yugabyte/yugabyte-db) with PostgreSQL, so scanning tables stored in YugaByte DB is being done through Foreign Scan callbacks. These callbacks in turn read data from the underlying YugaByte DB cluster