Re: sql disaster - subquery error but delete continues

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От Thomas Kellerer
Тема Re: sql disaster - subquery error but delete continues
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Msg-id i6d019$gto$1@dough.gmane.org
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Ответ на sql disaster - subquery error but delete continues  (Greg Caulton <caultonpos@gmail.com>)
Список pgsql-sql
Greg Caulton, 10.09.2010 11:46:
> delete from form_record_details where form_record_id in (select form_record_id from forms where form_id= 40003656)
>
> Seems fine at 1am.
>
> However the subquery has a typo in it - there is no form_record_id in the forms table
>
> But rather than psql throwing an error...
>
> it deletes every row in the form_record_details table
>
> please tell me this is fixed since 8.3

This is not a bug.

I assume there is a form_record_id in the table form_record_details. As you have not used table prefixes or aliases,
youare simply referencing the form_record_id from the "outer" table in the subquery.
 

Thomas



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