| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Ryan Bradetich" <rbradetich(at)gmail(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [Patch Review] TRUNCATE Permission |
| Date: | 2008-09-01 20:00:58 |
| Message-ID: | 4145.1220299258@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
"Ryan Bradetich" <rbradetich(at)gmail(dot)com> writes:
>> I do not believe this is a huge issue since truncate is prohibited on the
>> system catalogs
>> by the truncate_check_rel().
Only when allowSystemTableMods is false. I think it would be a serious
mistake for your patch to treat the system catalogs differently from
other tables.
> Here is the inconsistency I observed:
It seems to me that you are assuming that lack of a TRUNCATE permission
bit is the only valid reason for a "permission denied" failure. This is
fairly obviously not so, since multiple permissions typically enter into
any command (consider schema-level permissions for instance).
regards, tom lane
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