Re: canceling a delete

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On Thu, May 19, 2016 at 2:44 PM, Campbell, Lance <lance@xxxxxxxxxxxx> wrote:
> PostgreSQL 9.5.x

It is always best to show the full version number, just in case one of
the bugs fixed in a minor release could matter for the issue at hand.
(In this case I don't know of any, but there is not much point
checking for sure when I can only guess at what you are running.)

> Delete from some_table;
>
> I realized that I should have had a where clause.  So I canceled the delete
> with CTRL-C.  PostgreSQL said to canceled the delete.

Again, copy/paste of what you saw would allow a response with higher confidence.

> Did PostgreSQL delete any records?

Not if it processed the Ctrl+C before the command completed normally.
Either all rows in the table should be gone or the DELETE had no
effect.

Note that now would be a horrible time to suffer database corruption.
If, for example, you needed to run pg_resetxlog right now, you might
lose a lot of those rows.  Tread carefully.

-- 
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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