Add client_hostname field to pg_stat_activity.

Peter Eisentraut, reviewed by Steve Singer, Alvaro Herrera, and me.

doc/src/sgml/monitoring.sgml

@@ -245,14 +245,17 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
       <entry><structname>pg_stat_activity</><indexterm><primary>pg_stat_activity</primary></indexterm></entry>
       <entry>One row per server process, showing database OID, database
       name, process <acronym>ID</>, user OID, user name, application name,
-      client's address and port number, times at which the server process,
-      current transaction, and current query began execution, process's waiting
-      status, and text of the current query.
+      client's address, hostname (if available), and port number, times at
+      which the server process, current transaction, and current query began
+      execution, process's waiting status, and text of the current query.
       The columns that report data on the current query are available unless
       the parameter <varname>track_activities</varname> has been turned off.
       Furthermore, these columns are only visible if the user examining
       the view is a superuser or the same as the user owning the process
-      being reported on.
+      being reported on.  The client's hostname will be available only if
+      <xref linkend="guc-log-hostname"> is set or if the user's hostname
+      needed to be looked up during <filename>pg_hba.conf</filename>
+      processing.
      </entry>
      </row>
 
@@ -297,14 +300,18 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
      <row>
       <entry><structname>pg_stat_replication</><indexterm><primary>pg_stat_replication</primary></indexterm></entry>
       <entry>One row per WAL sender process, showing process <acronym>ID</>,
-      user OID, user name, application name, client's address and port number,
-      time at which the server process began execution, and the current WAL
-      sender state and transaction log location.  In addition, the standby
-      reports the last transaction log position it received and wrote, the last
-      position it flushed to disk, and the last position it replayed, and this
-      information is also displayed here.  The columns detailing what exactly
-      the connection is doing are only visible if the user examining the view
-      is a superuser.
+      user OID, user name, application name, client's address, hostname
+      (if available) and port number, time at which the server process began
+      execution, and the current WAL sender state and transaction log
+      location.  In addition, the standby reports the last transaction log
+      position it received and wrote, the last position it flushed to disk,
+      and the last position it replayed, and this information is also
+      displayed here.  The columns detailing what exactly the connection is
+      doing are only visible if the user examining the view is a superuser.
+      The client's hostname will be available only if
+      <xref linkend="guc-log-hostname"> is set or if the user's hostname
+      needed to be looked up during <filename>pg_hba.conf</filename>
+      processing.
      </entry>
      </row>
 

src/backend/catalog/system_views.sql

@@ -495,6 +495,7 @@ CREATE VIEW pg_stat_activity AS
             U.rolname AS usename,
             S.application_name,
             S.client_addr,
+            S.client_hostname,
             S.client_port,
             S.backend_start,
             S.xact_start,
@@ -512,6 +513,7 @@ CREATE VIEW pg_stat_replication AS
             U.rolname AS usename,
             S.application_name,
             S.client_addr,
+            S.client_hostname,
             S.client_port,
             S.backend_start,
             W.state,

src/backend/postmaster/pgstat.c

@@ -2223,6 +2223,7 @@ pgstat_fetch_global(void)
 
 static PgBackendStatus *BackendStatusArray = NULL;
 static PgBackendStatus *MyBEEntry = NULL;
+static char *BackendClientHostnameBuffer = NULL;
 static char *BackendAppnameBuffer = NULL;
 static char *BackendActivityBuffer = NULL;
 
@@ -2240,11 +2241,13 @@ BackendStatusShmemSize(void)
 					mul_size(NAMEDATALEN, MaxBackends));
 	size = add_size(size,
 					mul_size(pgstat_track_activity_query_size, MaxBackends));
+	size = add_size(size,
+					mul_size(NAMEDATALEN, MaxBackends));
 	return size;
 }
 
 /*
- * Initialize the shared status array and activity/appname string buffers
+ * Initialize the shared status array and several string buffers
  * during postmaster startup.
  */
 void
@@ -2286,6 +2289,24 @@ CreateSharedBackendStatus(void)
 		}
 	}
 
+	/* Create or attach to the shared client hostname buffer */
+	size = mul_size(NAMEDATALEN, MaxBackends);
+	BackendClientHostnameBuffer = (char *)
+		ShmemInitStruct("Backend Client Host Name Buffer", size, &found);
+
+	if (!found)
+	{
+		MemSet(BackendClientHostnameBuffer, 0, size);
+
+		/* Initialize st_clienthostname pointers. */
+		buffer = BackendClientHostnameBuffer;
+		for (i = 0; i < MaxBackends; i++)
+		{
+			BackendStatusArray[i].st_clienthostname = buffer;
+			buffer += NAMEDATALEN;
+		}
+	}
+
 	/* Create or attach to the shared activity buffer */
 	size = mul_size(pgstat_track_activity_query_size, MaxBackends);
 	BackendActivityBuffer = (char *)
@@ -2386,16 +2407,21 @@ pgstat_bestart(void)
 	beentry->st_databaseid = MyDatabaseId;
 	beentry->st_userid = userid;
 	beentry->st_clientaddr = clientaddr;
+	beentry->st_clienthostname[0] = '\0';
 	beentry->st_waiting = false;
 	beentry->st_appname[0] = '\0';
 	beentry->st_activity[0] = '\0';
 	/* Also make sure the last byte in each string area is always 0 */
+	beentry->st_clienthostname[NAMEDATALEN - 1] = '\0';
 	beentry->st_appname[NAMEDATALEN - 1] = '\0';
 	beentry->st_activity[pgstat_track_activity_query_size - 1] = '\0';
 
 	beentry->st_changecount++;
 	Assert((beentry->st_changecount & 1) == 0);
 
+	if (MyProcPort && MyProcPort->remote_hostname)
+		strlcpy(beentry->st_clienthostname, MyProcPort->remote_hostname, NAMEDATALEN);
+
 	/* Update app name to current GUC setting */
 	if (application_name)
 		pgstat_report_appname(application_name);

src/backend/utils/adt/pgstatfuncs.c

@@ -506,7 +506,7 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
 
 		oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
 
-		tupdesc = CreateTemplateTupleDesc(11, false);
+		tupdesc = CreateTemplateTupleDesc(12, false);
 		TupleDescInitEntry(tupdesc, (AttrNumber) 1, "datid", OIDOID, -1, 0);
 		TupleDescInitEntry(tupdesc, (AttrNumber) 2, "procpid", INT4OID, -1, 0);
 		TupleDescInitEntry(tupdesc, (AttrNumber) 3, "usesysid", OIDOID, -1, 0);
@@ -517,7 +517,8 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
 		TupleDescInitEntry(tupdesc, (AttrNumber) 8, "query_start", TIMESTAMPTZOID, -1, 0);
 		TupleDescInitEntry(tupdesc, (AttrNumber) 9, "backend_start", TIMESTAMPTZOID, -1, 0);
 		TupleDescInitEntry(tupdesc, (AttrNumber) 10, "client_addr", INETOID, -1, 0);
-		TupleDescInitEntry(tupdesc, (AttrNumber) 11, "client_port", INT4OID, -1, 0);
+		TupleDescInitEntry(tupdesc, (AttrNumber) 11, "client_hostname", TEXTOID, -1, 0);
+		TupleDescInitEntry(tupdesc, (AttrNumber) 12, "client_port", INT4OID, -1, 0);
 
 		funcctx->tuple_desc = BlessTupleDesc(tupdesc);
 
@@ -569,8 +570,8 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
 	if (funcctx->call_cntr < funcctx->max_calls)
 	{
 		/* for each row */
-		Datum		values[11];
-		bool		nulls[11];
+		Datum		values[12];
+		bool		nulls[12];
 		HeapTuple	tuple;
 		PgBackendStatus *beentry;
 		SockAddr	zero_clientaddr;
@@ -647,6 +648,7 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
 			{
 				nulls[9] = true;
 				nulls[10] = true;
+				nulls[11] = true;
 			}
 			else
 			{
@@ -671,13 +673,18 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
 					{
 						nulls[9] = true;
 						nulls[10] = true;
+						nulls[11] = true;
 					}
 					else
 					{
 						clean_ipv6_addr(beentry->st_clientaddr.addr.ss_family, remote_host);
 						values[9] = DirectFunctionCall1(inet_in,
 											   CStringGetDatum(remote_host));
-						values[10] = Int32GetDatum(atoi(remote_port));
+						if (beentry->st_clienthostname)
+							values[10] = CStringGetTextDatum(beentry->st_clienthostname);
+						else
+							nulls[10] = true;
+						values[11] = Int32GetDatum(atoi(remote_port));
 					}
 				}
 				else if (beentry->st_clientaddr.addr.ss_family == AF_UNIX)
@@ -689,13 +696,15 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
 					 * errors.
 					 */
 					nulls[9] = true;
-					values[10] = DatumGetInt32(-1);
+					nulls[10] = true;
+					values[11] = DatumGetInt32(-1);
 				}
 				else
 				{
 					/* Unknown address type, should never happen */
 					nulls[9] = true;
 					nulls[10] = true;
+					nulls[11] = true;
 				}
 			}
 		}
@@ -709,6 +718,7 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
 			nulls[8] = true;
 			nulls[9] = true;
 			nulls[10] = true;
+			nulls[11] = true;
 		}
 
 		tuple = heap_form_tuple(funcctx->tuple_desc, values, nulls);

src/include/catalog/catversion.h

@@ -53,6 +53,6 @@
  */
 
 /*							yyyymmddN */
-#define CATALOG_VERSION_NO	201102161
+#define CATALOG_VERSION_NO	201102171
 
 #endif

src/include/catalog/pg_proc.h

@@ -3073,7 +3073,7 @@ DATA(insert OID = 3057 ( pg_stat_get_autoanalyze_count PGNSP PGUID 12 1 0 0 f f
 DESCR("statistics: number of auto analyzes for a table");
 DATA(insert OID = 1936 (  pg_stat_get_backend_idset		PGNSP PGUID 12 1 100 0 f f f t t s 0 0 23 "" _null_ _null_ _null_ _null_ pg_stat_get_backend_idset _null_ _null_ _null_ ));
 DESCR("statistics: currently active backend IDs");
-DATA(insert OID = 2022 (  pg_stat_get_activity			PGNSP PGUID 12 1 100 0 f f f f t s 1 0 2249 "23" "{23,26,23,26,25,25,16,1184,1184,1184,869,23}" "{i,o,o,o,o,o,o,o,o,o,o,o}" "{pid,datid,procpid,usesysid,application_name,current_query,waiting,xact_start,query_start,backend_start,client_addr,client_port}" _null_ pg_stat_get_activity _null_ _null_ _null_ ));
+DATA(insert OID = 2022 (  pg_stat_get_activity			PGNSP PGUID 12 1 100 0 f f f f t s 1 0 2249 "23" "{23,26,23,26,25,25,16,1184,1184,1184,869,25,23}" "{i,o,o,o,o,o,o,o,o,o,o,o,o}" "{pid,datid,procpid,usesysid,application_name,current_query,waiting,xact_start,query_start,backend_start,client_addr,client_hostname,client_port}" _null_ pg_stat_get_activity _null_ _null_ _null_ ));
 DESCR("statistics: information about currently active backends");
 DATA(insert OID = 3099 (  pg_stat_get_wal_senders	PGNSP PGUID 12 1 10 0 f f f f t s 0 0 2249 "" "{23,25,25,25,25,25}" "{o,o,o,o,o,o}" "{procpid,state,sent_location,write_location,flush_location,apply_location}" _null_ pg_stat_get_wal_senders _null_ _null_ _null_ ));
 DESCR("statistics: information about currently active replication");

src/include/pgstat.h

@@ -628,6 +628,7 @@ typedef struct PgBackendStatus
 	Oid			st_databaseid;
 	Oid			st_userid;
 	SockAddr	st_clientaddr;
+	char	   *st_clienthostname; /* MUST be null-terminated */
 
 	/* Is backend currently waiting on an lmgr lock? */
 	bool		st_waiting;

src/test/regress/expected/rules.out

@@ -1292,13 +1292,13 @@ SELECT viewname, definition FROM pg_views WHERE schemaname <> 'information_schem
  pg_seclabels                    | (((((SELECT l.objoid, l.classoid, l.objsubid, CASE WHEN (rel.relkind = 'r'::"char") THEN 'table'::text WHEN (rel.relkind = 'v'::"char") THEN 'view'::text WHEN (rel.relkind = 'S'::"char") THEN 'sequence'::text WHEN (rel.relkind = 'f'::"char") THEN 'foreign table'::text ELSE NULL::text END AS objtype, rel.relnamespace AS objnamespace, CASE WHEN pg_table_is_visible(rel.oid) THEN quote_ident((rel.relname)::text) ELSE ((quote_ident((nsp.nspname)::text) || '.'::text) || quote_ident((rel.relname)::text)) END AS objname, l.provider, l.label FROM ((pg_seclabel l JOIN pg_class rel ON (((l.classoid = rel.tableoid) AND (l.objoid = rel.oid)))) JOIN pg_namespace nsp ON ((rel.relnamespace = nsp.oid))) WHERE (l.objsubid = 0) UNION ALL SELECT l.objoid, l.classoid, l.objsubid, 'column'::text AS objtype, rel.relnamespace AS objnamespace, ((CASE WHEN pg_table_is_visible(rel.oid) THEN quote_ident((rel.relname)::text) ELSE ((quote_ident((nsp.nspname)::text) || '.'::text) || quote_ident((rel.relname)::text)) END || '.'::text) || (att.attname)::text) AS objname, l.provider, l.label FROM (((pg_seclabel l JOIN pg_class rel ON (((l.classoid = rel.tableoid) AND (l.objoid = rel.oid)))) JOIN pg_attribute att ON (((rel.oid = att.attrelid) AND (l.objsubid = att.attnum)))) JOIN pg_namespace nsp ON ((rel.relnamespace = nsp.oid))) WHERE (l.objsubid <> 0)) UNION ALL SELECT l.objoid, l.classoid, l.objsubid, CASE WHEN (pro.proisagg = true) THEN 'aggregate'::text WHEN (pro.proisagg = false) THEN 'function'::text ELSE NULL::text END AS objtype, pro.pronamespace AS objnamespace, (((CASE WHEN pg_function_is_visible(pro.oid) THEN quote_ident((pro.proname)::text) ELSE ((quote_ident((nsp.nspname)::text) || '.'::text) || quote_ident((pro.proname)::text)) END || '('::text) || pg_get_function_arguments(pro.oid)) || ')'::text) AS objname, l.provider, l.label FROM ((pg_seclabel l JOIN pg_proc pro ON (((l.classoid = pro.tableoid) AND (l.objoid = pro.oid)))) JOIN pg_namespace nsp ON ((pro.pronamespace = nsp.oid))) WHERE (l.objsubid = 0)) UNION ALL SELECT l.objoid, l.classoid, l.objsubid, CASE WHEN (typ.typtype = 'd'::"char") THEN 'domain'::text ELSE 'type'::text END AS objtype, typ.typnamespace AS objnamespace, CASE WHEN pg_type_is_visible(typ.oid) THEN quote_ident((typ.typname)::text) ELSE ((quote_ident((nsp.nspname)::text) || '.'::text) || quote_ident((typ.typname)::text)) END AS objname, l.provider, l.label FROM ((pg_seclabel l JOIN pg_type typ ON (((l.classoid = typ.tableoid) AND (l.objoid = typ.oid)))) JOIN pg_namespace nsp ON ((typ.typnamespace = nsp.oid))) WHERE (l.objsubid = 0)) UNION ALL SELECT l.objoid, l.classoid, l.objsubid, 'large object'::text AS objtype, NULL::oid AS objnamespace, (l.objoid)::text AS objname, l.provider, l.label FROM (pg_seclabel l JOIN pg_largeobject_metadata lom ON ((l.objoid = lom.oid))) WHERE ((l.classoid = ('pg_largeobject'::regclass)::oid) AND (l.objsubid = 0))) UNION ALL SELECT l.objoid, l.classoid, l.objsubid, 'language'::text AS objtype, NULL::oid AS objnamespace, quote_ident((lan.lanname)::text) AS objname, l.provider, l.label FROM (pg_seclabel l JOIN pg_language lan ON (((l.classoid = lan.tableoid) AND (l.objoid = lan.oid)))) WHERE (l.objsubid = 0)) UNION ALL SELECT l.objoid, l.classoid, l.objsubid, 'schema'::text AS objtype, nsp.oid AS objnamespace, quote_ident((nsp.nspname)::text) AS objname, l.provider, l.label FROM (pg_seclabel l JOIN pg_namespace nsp ON (((l.classoid = nsp.tableoid) AND (l.objoid = nsp.oid)))) WHERE (l.objsubid = 0);
  pg_settings                     | SELECT a.name, a.setting, a.unit, a.category, a.short_desc, a.extra_desc, a.context, a.vartype, a.source, a.min_val, a.max_val, a.enumvals, a.boot_val, a.reset_val, a.sourcefile, a.sourceline FROM pg_show_all_settings() a(name, setting, unit, category, short_desc, extra_desc, context, vartype, source, min_val, max_val, enumvals, boot_val, reset_val, sourcefile, sourceline);
  pg_shadow                       | SELECT pg_authid.rolname AS usename, pg_authid.oid AS usesysid, pg_authid.rolcreatedb AS usecreatedb, pg_authid.rolsuper AS usesuper, pg_authid.rolcatupdate AS usecatupd, pg_authid.rolreplication AS userepl, pg_authid.rolpassword AS passwd, (pg_authid.rolvaliduntil)::abstime AS valuntil, s.setconfig AS useconfig FROM (pg_authid LEFT JOIN pg_db_role_setting s ON (((pg_authid.oid = s.setrole) AND (s.setdatabase = (0)::oid)))) WHERE pg_authid.rolcanlogin;
- pg_stat_activity                | SELECT s.datid, d.datname, s.procpid, s.usesysid, u.rolname AS usename, s.application_name, s.client_addr, s.client_port, s.backend_start, s.xact_start, s.query_start, s.waiting, s.current_query FROM pg_database d, pg_stat_get_activity(NULL::integer) s(datid, procpid, usesysid, application_name, current_query, waiting, xact_start, query_start, backend_start, client_addr, client_port), pg_authid u WHERE ((s.datid = d.oid) AND (s.usesysid = u.oid));
+ pg_stat_activity                | SELECT s.datid, d.datname, s.procpid, s.usesysid, u.rolname AS usename, s.application_name, s.client_addr, s.client_hostname, s.client_port, s.backend_start, s.xact_start, s.query_start, s.waiting, s.current_query FROM pg_database d, pg_stat_get_activity(NULL::integer) s(datid, procpid, usesysid, application_name, current_query, waiting, xact_start, query_start, backend_start, client_addr, client_hostname, client_port), pg_authid u WHERE ((s.datid = d.oid) AND (s.usesysid = u.oid));
  pg_stat_all_indexes             | SELECT c.oid AS relid, i.oid AS indexrelid, n.nspname AS schemaname, c.relname, i.relname AS indexrelname, pg_stat_get_numscans(i.oid) AS idx_scan, pg_stat_get_tuples_returned(i.oid) AS idx_tup_read, pg_stat_get_tuples_fetched(i.oid) AS idx_tup_fetch FROM (((pg_class c JOIN pg_index x ON ((c.oid = x.indrelid))) JOIN pg_class i ON ((i.oid = x.indexrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = ANY (ARRAY['r'::"char", 't'::"char"]));
  pg_stat_all_tables              | SELECT c.oid AS relid, n.nspname AS schemaname, c.relname, pg_stat_get_numscans(c.oid) AS seq_scan, pg_stat_get_tuples_returned(c.oid) AS seq_tup_read, (sum(pg_stat_get_numscans(i.indexrelid)))::bigint AS idx_scan, ((sum(pg_stat_get_tuples_fetched(i.indexrelid)))::bigint + pg_stat_get_tuples_fetched(c.oid)) AS idx_tup_fetch, pg_stat_get_tuples_inserted(c.oid) AS n_tup_ins, pg_stat_get_tuples_updated(c.oid) AS n_tup_upd, pg_stat_get_tuples_deleted(c.oid) AS n_tup_del, pg_stat_get_tuples_hot_updated(c.oid) AS n_tup_hot_upd, pg_stat_get_live_tuples(c.oid) AS n_live_tup, pg_stat_get_dead_tuples(c.oid) AS n_dead_tup, pg_stat_get_last_vacuum_time(c.oid) AS last_vacuum, pg_stat_get_last_autovacuum_time(c.oid) AS last_autovacuum, pg_stat_get_last_analyze_time(c.oid) AS last_analyze, pg_stat_get_last_autoanalyze_time(c.oid) AS last_autoanalyze, pg_stat_get_vacuum_count(c.oid) AS vacuum_count, pg_stat_get_autovacuum_count(c.oid) AS autovacuum_count, pg_stat_get_analyze_count(c.oid) AS analyze_count, pg_stat_get_autoanalyze_count(c.oid) AS autoanalyze_count FROM ((pg_class c LEFT JOIN pg_index i ON ((c.oid = i.indrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = ANY (ARRAY['r'::"char", 't'::"char"])) GROUP BY c.oid, n.nspname, c.relname;
  pg_stat_bgwriter                | SELECT pg_stat_get_bgwriter_timed_checkpoints() AS checkpoints_timed, pg_stat_get_bgwriter_requested_checkpoints() AS checkpoints_req, pg_stat_get_bgwriter_buf_written_checkpoints() AS buffers_checkpoint, pg_stat_get_bgwriter_buf_written_clean() AS buffers_clean, pg_stat_get_bgwriter_maxwritten_clean() AS maxwritten_clean, pg_stat_get_buf_written_backend() AS buffers_backend, pg_stat_get_buf_fsync_backend() AS buffers_backend_fsync, pg_stat_get_buf_alloc() AS buffers_alloc, pg_stat_get_bgwriter_stat_reset_time() AS stats_reset;
  pg_stat_database                | SELECT d.oid AS datid, d.datname, pg_stat_get_db_numbackends(d.oid) AS numbackends, pg_stat_get_db_xact_commit(d.oid) AS xact_commit, pg_stat_get_db_xact_rollback(d.oid) AS xact_rollback, (pg_stat_get_db_blocks_fetched(d.oid) - pg_stat_get_db_blocks_hit(d.oid)) AS blks_read, pg_stat_get_db_blocks_hit(d.oid) AS blks_hit, pg_stat_get_db_tuples_returned(d.oid) AS tup_returned, pg_stat_get_db_tuples_fetched(d.oid) AS tup_fetched, pg_stat_get_db_tuples_inserted(d.oid) AS tup_inserted, pg_stat_get_db_tuples_updated(d.oid) AS tup_updated, pg_stat_get_db_tuples_deleted(d.oid) AS tup_deleted, pg_stat_get_db_conflict_all(d.oid) AS conflicts, pg_stat_get_db_stat_reset_time(d.oid) AS stats_reset FROM pg_database d;
  pg_stat_database_conflicts      | SELECT d.oid AS datid, d.datname, pg_stat_get_db_conflict_tablespace(d.oid) AS confl_tablespace, pg_stat_get_db_conflict_lock(d.oid) AS confl_lock, pg_stat_get_db_conflict_snapshot(d.oid) AS confl_snapshot, pg_stat_get_db_conflict_bufferpin(d.oid) AS confl_bufferpin, pg_stat_get_db_conflict_startup_deadlock(d.oid) AS confl_deadlock FROM pg_database d;
- pg_stat_replication             | SELECT s.procpid, s.usesysid, u.rolname AS usename, s.application_name, s.client_addr, s.client_port, s.backend_start, w.state, w.sent_location, w.write_location, w.flush_location, w.apply_location FROM pg_stat_get_activity(NULL::integer) s(datid, procpid, usesysid, application_name, current_query, waiting, xact_start, query_start, backend_start, client_addr, client_port), pg_authid u, pg_stat_get_wal_senders() w(procpid, state, sent_location, write_location, flush_location, apply_location) WHERE ((s.usesysid = u.oid) AND (s.procpid = w.procpid));
+ pg_stat_replication             | SELECT s.procpid, s.usesysid, u.rolname AS usename, s.application_name, s.client_addr, s.client_hostname, s.client_port, s.backend_start, w.state, w.sent_location, w.write_location, w.flush_location, w.apply_location FROM pg_stat_get_activity(NULL::integer) s(datid, procpid, usesysid, application_name, current_query, waiting, xact_start, query_start, backend_start, client_addr, client_hostname, client_port), pg_authid u, pg_stat_get_wal_senders() w(procpid, state, sent_location, write_location, flush_location, apply_location) WHERE ((s.usesysid = u.oid) AND (s.procpid = w.procpid));
  pg_stat_sys_indexes             | SELECT pg_stat_all_indexes.relid, pg_stat_all_indexes.indexrelid, pg_stat_all_indexes.schemaname, pg_stat_all_indexes.relname, pg_stat_all_indexes.indexrelname, pg_stat_all_indexes.idx_scan, pg_stat_all_indexes.idx_tup_read, pg_stat_all_indexes.idx_tup_fetch FROM pg_stat_all_indexes WHERE ((pg_stat_all_indexes.schemaname = ANY (ARRAY['pg_catalog'::name, 'information_schema'::name])) OR (pg_stat_all_indexes.schemaname ~ '^pg_toast'::text));
  pg_stat_sys_tables              | SELECT pg_stat_all_tables.relid, pg_stat_all_tables.schemaname, pg_stat_all_tables.relname, pg_stat_all_tables.seq_scan, pg_stat_all_tables.seq_tup_read, pg_stat_all_tables.idx_scan, pg_stat_all_tables.idx_tup_fetch, pg_stat_all_tables.n_tup_ins, pg_stat_all_tables.n_tup_upd, pg_stat_all_tables.n_tup_del, pg_stat_all_tables.n_tup_hot_upd, pg_stat_all_tables.n_live_tup, pg_stat_all_tables.n_dead_tup, pg_stat_all_tables.last_vacuum, pg_stat_all_tables.last_autovacuum, pg_stat_all_tables.last_analyze, pg_stat_all_tables.last_autoanalyze, pg_stat_all_tables.vacuum_count, pg_stat_all_tables.autovacuum_count, pg_stat_all_tables.analyze_count, pg_stat_all_tables.autoanalyze_count FROM pg_stat_all_tables WHERE ((pg_stat_all_tables.schemaname = ANY (ARRAY['pg_catalog'::name, 'information_schema'::name])) OR (pg_stat_all_tables.schemaname ~ '^pg_toast'::text));
  pg_stat_user_functions          | SELECT p.oid AS funcid, n.nspname AS schemaname, p.proname AS funcname, pg_stat_get_function_calls(p.oid) AS calls, (pg_stat_get_function_time(p.oid) / 1000) AS total_time, (pg_stat_get_function_self_time(p.oid) / 1000) AS self_time FROM (pg_proc p LEFT JOIN pg_namespace n ON ((n.oid = p.pronamespace))) WHERE ((p.prolang <> (12)::oid) AND (pg_stat_get_function_calls(p.oid) IS NOT NULL));