Re: Proposal: TRUNCATE TABLE table RESTRICT - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Proposal: TRUNCATE TABLE table RESTRICT
Date
Msg-id 200010030321.XAA04612@candle.pha.pa.us
Whole thread Raw
In response to Proposal: TRUNCATE TABLE table RESTRICT  (Tatsuo Ishii <t-ishii@sra.co.jp>)
List 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
> 


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