Re: [SQL] possible bug?
От | Bruce Momjian |
---|---|
Тема | Re: [SQL] possible bug? |
Дата | |
Msg-id | 199910260458.AAA20296@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: [SQL] possible bug? (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-sql |
> Clayton Cottingham <drfrog@smartt.com> writes: > > can anyone confirm this? > > create index idx on table using btree(column ); > > cluster idx on table; > > drop index idx; > > seems to drop all permissions and indexes > > on the table involved > > "cluster" deliberately drops all other indexes on the target table, > according to the source code. (If this isn't mentioned in the > documentation, it should be.) > > It looks like the implementation method is to build a whole new > table, destroy the old, and rename the new into place. That probably > explains why the permissions get lost --- I suppose triggers &etc > are not carried over either, and heaven help you if you try to cluster > a member of an inheritance hierarchy... > > I have no idea how hard it'd be to make a less destructive version > of "cluster". Another item for the TODO list, I guess. > Already on TODO list. Text added to make it clearer. -- Bruce Momjian | http://www.op.net/~candle maillist@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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