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Support SET FROM CURRENT in CREATE/ALTER FUNCTION, ALTER DATABASE, ALTER ROLE.

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(Actually, it works as a plain statement too, but I didn't document that
because it seems a bit useless.)  Unify VariableResetStmt with
VariableSetStmt, and clean up some ancient cruft in the representation of
same.
This commit is contained in:
Tom Lane
2007-09-03 18:46:30 +00:00
parent dd4594e332
commit e7889b83b7
17 changed files with 382 additions and 360 deletions
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22
src/backend/commands/user.c
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@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/commands/user.c,v 1.176 2007/02/01 19:10:26 momjian Exp $
* $PostgreSQL: pgsql/src/backend/commands/user.c,v 1.177 2007/09/03 18:46:30 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -721,9 +721,8 @@ AlterRoleSet(AlterRoleSetStmt *stmt)
Datum repl_val[Natts_pg_authid];
char repl_null[Natts_pg_authid];
char repl_repl[Natts_pg_authid];
int i;
valuestr = flatten_set_variable_args(stmt->variable, stmt->value);
valuestr = ExtractSetVariableArgs(stmt->setstmt);
rel = heap_open(AuthIdRelationId, RowExclusiveLock);
oldtuple = SearchSysCache(AUTHNAME,
@ -754,14 +753,14 @@ AlterRoleSet(AlterRoleSetStmt *stmt)
errmsg("permission denied")));
}
for (i = 0; i < Natts_pg_authid; i++)
repl_repl[i] = ' ';
memset(repl_repl, ' ', sizeof(repl_repl));
repl_repl[Anum_pg_authid_rolconfig - 1] = 'r';
if (strcmp(stmt->variable, "all") == 0 && valuestr == NULL)
if (stmt->setstmt->kind == VAR_RESET_ALL)
{
/* RESET ALL */
/* RESET ALL, so just set rolconfig to null */
repl_null[Anum_pg_authid_rolconfig - 1] = 'n';
repl_val[Anum_pg_authid_rolconfig - 1] = (Datum) 0;
}
else
{
@ -771,15 +770,16 @@ AlterRoleSet(AlterRoleSetStmt *stmt)
repl_null[Anum_pg_authid_rolconfig - 1] = ' ';
/* Extract old value of rolconfig */
datum = SysCacheGetAttr(AUTHNAME, oldtuple,
Anum_pg_authid_rolconfig, &isnull);
array = isnull ? NULL : DatumGetArrayTypeP(datum);
/* Update (valuestr is NULL in RESET cases) */
if (valuestr)
array = GUCArrayAdd(array, stmt->variable, valuestr);
array = GUCArrayAdd(array, stmt->setstmt->name, valuestr);
else
array = GUCArrayDelete(array, stmt->variable);
array = GUCArrayDelete(array, stmt->setstmt->name);
if (array)
repl_val[Anum_pg_authid_rolconfig - 1] = PointerGetDatum(array);