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Accept invalidation messages in InitializeSessionUserId().

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If the authentication method modified the system catalogs through a
separate database connection (say, to create a new role on the fly),
make sure syscache sees the changes before we try to find the user.

Author: Thomas Munro
Reviewed-by: Tom Lane, Andres Freund
Discussion: https://postgr.es/m/CAEepm%3D3_h0_cgmz5PMyab4xk_OFrg6G5VCN%3DnF4chFXM9iFOqA%40mail.gmail.com
This commit is contained in:
Thomas Munro 2018-07-13 16:12:03 +12:00
parent 387a5cfb94
commit e8d9caa436
1 changed files with 8 additions and 0 deletions
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8
src/backend/utils/init/miscinit.c
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@ -48,6 +48,7 @@
#include "storage/procarray.h"
#include "utils/builtins.h"
#include "utils/guc.h"
#include "utils/inval.h"
#include "utils/memutils.h"
#include "utils/pidfile.h"
#include "utils/syscache.h"
@ -594,6 +595,13 @@ InitializeSessionUserId(const char *rolename, Oid roleid)
/* call only once */
AssertState(!OidIsValid(AuthenticatedUserId));
/*
* Make sure syscache entries are flushed for recent catalog changes.
* This allows us to find roles that were created on-the-fly during
* authentication.
*/
AcceptInvalidationMessages();
if (rolename != NULL)
{
roleTup = SearchSysCache1(AUTHNAME, PointerGetDatum(rolename));