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User and database-specific session defaults for run-time configuration

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variables.  New commands ALTER DATABASE ... SET and ALTER USER ... SET.
This commit is contained in:
Peter Eisentraut
2002-03-01 22:45:19 +00:00
parent 851f766115
commit 1aac2c852a
29 changed files with 812 additions and 48 deletions
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20
src/backend/utils/init/miscinit.c
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.82 2002/01/09 19:13:41 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.83 2002/03/01 22:45:15 petere Exp $
*
*-------------------------------------------------------------------------
*/
@@ -31,6 +31,7 @@
#include "libpq/libpq-be.h"
#include "miscadmin.h"
#include "utils/builtins.h"
#include "utils/guc.h"
#include "utils/lsyscache.h"
#include "utils/syscache.h"
@@ -437,6 +438,8 @@ void
InitializeSessionUserId(const char *username)
{
HeapTuple userTup;
Datum datum;
bool isnull;
/*
* Don't do scans if we're bootstrapping, none of the system catalogs
@@ -457,6 +460,21 @@ InitializeSessionUserId(const char *username)
AuthenticatedUserIsSuperuser = ((Form_pg_shadow) GETSTRUCT(userTup))->usesuper;
/*
* Set up user-specific configuration variables. This is a good
* place to do it so we don't have to read pg_shadow twice during
* session startup.
*/
datum = SysCacheGetAttr(SHADOWNAME, userTup,
Anum_pg_shadow_useconfig, &isnull);
if (!isnull)
{
ArrayType *a;
a = (ArrayType *) pg_detoast_datum((struct varlena *)datum);
ProcessGUCArray(a, PGC_S_USER);
}
ReleaseSysCache(userTup);
}

26
src/backend/utils/init/postinit.c
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.98 2002/02/19 20:11:18 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/init/postinit.c,v 1.99 2002/03/01 22:45:15 petere Exp $
*
*
*-------------------------------------------------------------------------
@@ -35,6 +35,7 @@
#include "storage/sinval.h"
#include "storage/smgr.h"
#include "utils/fmgroids.h"
#include "utils/guc.h"
#include "utils/portal.h"
#include "utils/relcache.h"
#include "utils/syscache.h"
@@ -70,6 +71,10 @@ static bool ThereIsAtLeastOneUser(void);
*
* This is also a handy place to fetch the database encoding info out
* of pg_database, if we are in MULTIBYTE mode.
*
* To avoid having to read pg_database more times than necessary
* during session startup, this place is also fitting to set up any
* database-specific configuration variables.
* --------------------------------
*/
static void
@@ -132,6 +137,25 @@ ReverifyMyDatabase(const char *name)
dbform->encoding);
#endif
/*
* Set up datbase-specific configuration variables.
*/
if (IsUnderPostmaster)
{
Datum datum;
bool isnull;
datum = heap_getattr(tup, Anum_pg_database_datconfig,
RelationGetDescr(pgdbrel), &isnull);
if (!isnull)
{
ArrayType *a;
a = (ArrayType *) pg_detoast_datum((struct varlena *)datum);
ProcessGUCArray(a, PGC_S_DATABASE);
}
}
heap_endscan(pgdbscan);
heap_close(pgdbrel, AccessShareLock);
}