Hi, PostgreSQL's friends. I'm using logical replication in PostgreSQL 14 and looking for columns usage of the pg_subscription_rel table. Do you think I can use the srsublsn column to see a replication lag by the subscription table? Can I compare the values and use the function pg_wal_lsn_diff() to determine the replication lag table by table? I tried some options here using this query: select h.nspname, r.relname, s.subname, sr.srsubstate, coalesce(sr.srsublsn,'0/0'::pg_lsn) as srsublsn, st.latest_end_lsn, st.received_lsn from pg_catalog.pg_subscription_rel sr inner join pg_catalog.pg_subscription s on sr.srsubid = s.oid inner join pg_catalog.pg_stat_subscription st on st.subid = s.oid inner join pg_catalog.pg_class r on sr.srrelid = r.oid inner join pg_catalog.pg_namespace h on r.relnamespace = h.oid where s.subname = ? order by h.nspname,r.relname; But all values in srsublsn returned nulls. Thanks! Lucio Chiessi Senior Database Administrator Trustly, Inc. -- Please read our privacy policy here <https://www.trustly.net/about-us/privacy-policy> on how we process your personal data in accordance with the General Data Protection Regulation (EU) 2016/679 (the “GDPR”) and other applicable data protection legislation
