| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Proposal: TRUNCATE TABLE table RESTRICT |
| Date: | 2000-10-03 03:21:28 |
| Message-ID: | 200010030321.XAA04612@candle.pha.pa.us |
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| Thread: | |
| Lists: | pgsql-hackers |
Can someone comment on this?
> It seems the truncate command deletes all rows from a table even it is
> referenced by another tables. TRUNCATE is not in the standard any way,
> so I would not claim this is a bug. However, sometimes it would be
> helpful for a user to let him notice that the table about to be
> truncated is referenced by some tables. So I would propose to add
> "RESTRICT" option to the command. I mean if RESTRICT is specified,
> TRUNCATE will fail if the table is referenced.
>
> BTW, the keyword "RESTRICT" is inspired by the fact that DROP TABLE
> has the same option according to the standard. If a table is
> referenced by some tables and the drop table command has the RESTRICT
> option, it would fail. This seems to be a nice feature too.
>
> Comments?
> --
> Tatsuo Ishii
>
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
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