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ALTER DOMAIN OWNER, from Rod Taylor.

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This commit is contained in:
Tom Lane
2003-01-06 00:31:45 +00:00
parent 1bf1597e3a
commit daec989f6a
6 changed files with 120 additions and 19 deletions
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60
src/backend/commands/typecmds.c
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.26 2003/01/04 00:46:08 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/typecmds.c,v 1.27 2003/01/06 00:31:44 tgl Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
@@ -1673,3 +1673,61 @@ domainAddConstraint(Oid domainOid, Oid domainNamespace, Oid baseTypeOid,
*/
return ccbin;
}
/*
* ALTER DOMAIN .. OWNER TO
*
* Eventually this should allow changing ownership of other kinds of types,
* but some thought must be given to handling complex types. (A table's
* rowtype probably shouldn't be allowed as target, but what of a standalone
* composite type?)
*
* Assumes that permission checks have been completed earlier.
*/
void
AlterTypeOwner(List *names, AclId newOwnerSysId)
{
TypeName *typename;
Oid typeOid;
Relation rel;
HeapTuple tup;
Form_pg_type typTup;
/* Make a TypeName so we can use standard type lookup machinery */
typename = makeNode(TypeName);
typename->names = names;
typename->typmod = -1;
typename->arrayBounds = NIL;
/* Lock the type table */
rel = heap_openr(TypeRelationName, RowExclusiveLock);
/* Use LookupTypeName here so that shell types can be processed (why?) */
typeOid = LookupTypeName(typename);
if (!OidIsValid(typeOid))
elog(ERROR, "Type \"%s\" does not exist",
TypeNameToString(typename));
tup = SearchSysCacheCopy(TYPEOID,
ObjectIdGetDatum(typeOid),
0, 0, 0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "AlterDomain: type \"%s\" does not exist",
TypeNameToString(typename));
typTup = (Form_pg_type) GETSTRUCT(tup);
/* Check that this is actually a domain */
if (typTup->typtype != 'd')
elog(ERROR, "%s is not a domain",
TypeNameToString(typename));
/* Modify the owner --- okay to scribble on typTup because it's a copy */
typTup->typowner = newOwnerSysId;
simple_heap_update(rel, &tup->t_self, tup);
CatalogUpdateIndexes(rel, tup);
/* Clean up */
heap_close(rel, RowExclusiveLock);
}

11
src/backend/parser/gram.y
View File

@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.389 2002/12/30 15:31:47 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.390 2003/01/06 00:31:44 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -3764,6 +3764,15 @@ AlterDomainStmt:
n->behavior = $7;
$$ = (Node *)n;
}
/* ALTER DOMAIN <domain> OWNER TO UserId */
| ALTER DOMAIN_P any_name OWNER TO UserId
{
AlterDomainStmt *n = makeNode(AlterDomainStmt);
n->subtype = 'U';
n->typename = $3;
n->name = $6;
$$ = (Node *)n;
}
;
opt_as: AS {}

20
src/backend/tcop/utility.c
View File

@@ -10,7 +10,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.187 2002/12/30 18:42:16 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/utility.c,v 1.188 2003/01/06 00:31:44 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -439,11 +439,11 @@ ProcessUtility(Node *parsetree,
stmt->newname); /* new att name */
break;
case RENAME_RULE:
elog(ERROR, "ProcessUtility: Invalid target for RENAME: %d",
elog(ERROR, "ProcessUtility: Invalid type for RENAME: %d",
stmt->renameType);
break;
default:
elog(ERROR, "ProcessUtility: Invalid target for RENAME: %d",
elog(ERROR, "ProcessUtility: Invalid type for RENAME: %d",
stmt->renameType);
}
}
@@ -553,7 +553,8 @@ ProcessUtility(Node *parsetree,
get_usesysid(stmt->name));
break;
default: /* oops */
elog(ERROR, "T_AlterTableStmt: unknown subtype");
elog(ERROR, "ProcessUtility: Invalid type for AlterTableStmt: %d",
stmt->subtype);
break;
}
}
@@ -595,8 +596,17 @@ ProcessUtility(Node *parsetree,
stmt->name,
stmt->behavior);
break;
case 'U': /* OWNER TO */
/* check that we are the superuser */
if (!superuser())
elog(ERROR, "ALTER DOMAIN: permission denied");
/* get_usesysid raises an error if no such user */
AlterTypeOwner(stmt->typename,
get_usesysid(stmt->name));
break;
default: /* oops */
elog(ERROR, "T_AlterDomainStmt: unknown subtype");
elog(ERROR, "ProcessUtility: Invalid type for AlterDomainStmt: %d",
stmt->subtype);
break;
}
}