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First batch of object rename commands.

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This commit is contained in:
Peter Eisentraut
2003-06-27 14:45:32 +00:00
parent 5bac7d11dd
commit b256f24264
60 changed files with 2018 additions and 442 deletions
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95
src/backend/commands/opclasscmds.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/opclasscmds.c,v 1.9 2002/11/13 00:39:46 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/opclasscmds.c,v 1.10 2003/06/27 14:45:27 petere Exp $
*
*-------------------------------------------------------------------------
*/
@ -550,7 +550,7 @@ RemoveOpClassById(Oid opclassOid)
ObjectIdGetDatum(opclassOid),
0, 0, 0);
if (!HeapTupleIsValid(tup)) /* should not happen */
elog(ERROR, "RemoveOpClassById: couldn't find pg_class entry %u",
elog(ERROR, "RemoveOpClassById: couldn't find pg_opclass entry %u",
opclassOid);
simple_heap_delete(rel, &tup->t_self);
@ -595,3 +595,94 @@ RemoveOpClassById(Oid opclassOid)
systable_endscan(scan);
heap_close(rel, RowExclusiveLock);
}
/*
* Rename opclass
*/
void
RenameOpClass(List *name, const char *access_method, const char *newname)
{
Oid opcOid;
Oid amOid;
Oid namespaceOid;
char *schemaname;
char *opcname;
HeapTuple tup;
Relation rel;
AclResult aclresult;
amOid = GetSysCacheOid(AMNAME,
CStringGetDatum(access_method),
0, 0, 0);
if (!OidIsValid(amOid))
elog(ERROR, "access method \"%s\" not found", access_method);
rel = heap_openr(OperatorClassRelationName, RowExclusiveLock);
/*
* Look up the opclass
*/
DeconstructQualifiedName(name, &schemaname, &opcname);
if (schemaname)
{
namespaceOid = LookupExplicitNamespace(schemaname);
tup = SearchSysCacheCopy(CLAAMNAMENSP,
ObjectIdGetDatum(amOid),
PointerGetDatum(opcname),
ObjectIdGetDatum(namespaceOid),
0);
if (!HeapTupleIsValid(tup))
elog(ERROR, "operator class \"%s\" for access method \"%s\" does not exist",
opcname, access_method);
opcOid = HeapTupleGetOid(tup);
}
else
{
opcOid = OpclassnameGetOpcid(amOid, opcname);
if (!OidIsValid(opcOid))
elog(ERROR, "operator class \"%s\" for access method \"%s\" does not exist",
opcname, access_method);
tup = SearchSysCacheCopy(CLAOID,
ObjectIdGetDatum(opcOid),
0, 0, 0);
if (!HeapTupleIsValid(tup)) /* should not happen */
elog(ERROR, "couldn't find pg_opclass tuple for %u", opcOid);
namespaceOid = ((Form_pg_opclass) GETSTRUCT(tup))->opcnamespace;
}
/* make sure the new name doesn't exist */
if (SearchSysCacheExists(CLAAMNAMENSP,
ObjectIdGetDatum(amOid),
CStringGetDatum(newname),
ObjectIdGetDatum(namespaceOid),
0))
{
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR_OR_ACCESS_RULE_VIOLATION),
errmsg("operator class \"%s\" for access method \"%s\" already exists in schema \"%s\"",
newname, access_method, get_namespace_name(namespaceOid))));
}
/* must be owner */
if (!pg_opclass_ownercheck(opcOid, GetUserId()))
aclcheck_error(ACLCHECK_NOT_OWNER, NameListToString(name));
/* must have CREATE privilege on namespace */
aclresult = pg_namespace_aclcheck(namespaceOid, GetUserId(), ACL_CREATE);
if (aclresult != ACLCHECK_OK)
aclcheck_error(aclresult, get_namespace_name(namespaceOid));
/* rename */
namestrcpy(&(((Form_pg_opclass) GETSTRUCT(tup))->opcname), newname);
simple_heap_update(rel, &tup->t_self, tup);
CatalogUpdateIndexes(rel, tup);
heap_close(rel, NoLock);
heap_freetuple(tup);
}