pg_stat_get_activity(pid integer, OUT datid oid, OUT pid integer, OUT usesysid oid, OUT application_name text, OUT state text, OUT query text, OUT wait_event_type text, OUT wait_event text, OUT xact_start timestamp with time zone, OUT query_start timestamp with time zone, OUT backend_start timestamp with time zone, OUT state_change timestamp with time zone, OUT client_addr inet, OUT client_hostname text, OUT client_port integer, OUT backend_xid xid, OUT backend_xmin xid, OUT backend_type text, OUT ssl boolean, OUT sslversion text, OUT sslcipher text, OUT sslbits integer, OUT ssl_client_dn text, OUT ssl_client_serial numeric, OUT ssl_issuer_dn text, OUT gss_auth boolean, OUT gss_princ text, OUT gss_enc boolean, OUT leader_pid integer, OUT query_id bigint)