Re: DROP COLUMN
От | Bruce Momjian |
---|---|
Тема | Re: DROP COLUMN |
Дата | |
Msg-id | 200207160504.g6G54Oc15845@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: DROP COLUMN ("Christopher Kings-Lynne" <chriskl@familyhealth.com.au>) |
Список | pgsql-hackers |
Christopher Kings-Lynne wrote: > > > In fact, looking at it logically...if all the commands currently are > > > required to check that they're not modifiying a system column, > > then why not > > > add the requirement that they must also not modify dropped > > columns? I can > > > do a careful doc search and try to make sure I've touched everything... > > > > Makes sense. Of course, we could make a syscache that didn't return > > system columns either. > > Actually - are you certain that every command uses a SearchSysCache and not > some other weirdness? If we have to do the odd exception, then maybe we > should do them all as 'exceptions'? I actually don't know. I know all the table name lookups do use syscache or temp tables wouldn't have worked. ;-) -- Bruce Momjian | http://candle.pha.pa.us pgman@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
В списке pgsql-hackers по дате отправления: