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Default monitoring roles - errata

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25fff40798fc4ac11a241bfd9ab0c45c085e2212 introduced
default monitoring roles. Apply these corrections:

* Allow access to pg_stat_get_wal_senders()
  by role pg_read_all_stats

* Correct comment in pg_stat_get_wal_receiver()
  to show it is no longer superuser-only.

Author: Feike Steenbergen
Reviewed-by: Michael Paquier

Apply to HEAD, then later backpatch to 10
This commit is contained in:
Simon Riggs 2018-01-06 11:48:21 +00:00
parent ccf312a448
commit 6668a54eb8
2 changed files with 7 additions and 4 deletions
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3
src/backend/replication/walreceiver.c
View File

@ -1442,7 +1442,8 @@ pg_stat_get_wal_receiver(PG_FUNCTION_ARGS)
if (!is_member_of_role(GetUserId(), DEFAULT_ROLE_READ_ALL_STATS))
{
/*
* Only superusers can see details. Other users only get the pid value
* Only superusers and members of pg_read_all_stats can see details.
* Other users only get the pid value
* to know whether it is a WAL receiver, but no details.
*/
MemSet(&nulls[1], true, sizeof(bool) * (tupdesc->natts - 1));

8
src/backend/replication/walsender.c
View File

@ -56,6 +56,7 @@
#include "access/xlog_internal.h"
#include "access/xlogutils.h"
#include "catalog/pg_authid.h"
#include "catalog/pg_type.h"
#include "commands/dbcommands.h"
#include "commands/defrem.h"
@ -3242,11 +3243,12 @@ pg_stat_get_wal_senders(PG_FUNCTION_ARGS)
memset(nulls, 0, sizeof(nulls));
values[0] = Int32GetDatum(pid);
if (!superuser())
if (!is_member_of_role(GetUserId(), DEFAULT_ROLE_READ_ALL_STATS))
{
/*
* Only superusers can see details. Other users only get the pid
* value to know it's a walsender, but no details.
* Only superusers and members of pg_read_all_stats can see details.
* Other users only get the pid value to know it's a walsender,
* but no details.
*/
MemSet(&nulls[1], true, PG_STAT_GET_WAL_SENDERS_COLS - 1);
}