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Prevent ALTER USER f RESET ALL from removing the settings that were put there

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by a superuser -- "ALTER USER f RESET setting" already disallows removing such a
setting.

Apply the same treatment to ALTER DATABASE d RESET ALL when run by a database
owner that's not superuser.
This commit is contained in:
Alvaro Herrera
2010-03-25 14:45:51 +00:00
parent 75d4be8ddd
commit d07f594705
4 changed files with 134 additions and 9 deletions
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29
src/backend/commands/dbcommands.c
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@@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.148.4.3 2005/06/25 22:47:49 tgl Exp $
* $PostgreSQL: pgsql/src/backend/commands/dbcommands.c,v 1.148.4.4 2010/03/25 14:45:51 alvherre Exp $
*
*-------------------------------------------------------------------------
*/
@@ -812,9 +812,30 @@ AlterDatabaseSet(AlterDatabaseSetStmt *stmt)
if (strcmp(stmt->variable, "all") == 0 && valuestr == NULL)
{
/* RESET ALL */
repl_null[Anum_pg_database_datconfig - 1] = 'n';
repl_val[Anum_pg_database_datconfig - 1] = (Datum) 0;
ArrayType *new = NULL;
Datum datum;
bool isnull;
/*
* in RESET ALL, request GUC to reset the settings array; if none
* left, we can set datconfig to null; otherwise use the returned
* array
*/
datum = heap_getattr(tuple, Anum_pg_database_datconfig,
RelationGetDescr(rel), &isnull);
if (!isnull)
new = GUCArrayReset(DatumGetArrayTypeP(datum));
if (new)
{
repl_val[Anum_pg_database_datconfig - 1] = PointerGetDatum(new);
repl_repl[Anum_pg_database_datconfig - 1] = 'r';
repl_null[Anum_pg_database_datconfig - 1] = ' ';
}
else
{
repl_null[Anum_pg_database_datconfig - 1] = 'n';
repl_val[Anum_pg_database_datconfig - 1] = (Datum) 0;
}
}
else
{