On Mon, Jun 6, 2022 at 09:19:17PM +0000, PG Doc comments form wrote: > The following documentation comment has been logged on the website: > > Page: https://www.postgresql.org/docs/14/tutorial-delete.html > Description: > > Since this tutorial section is coined at beginners, I think it could be > useful to tip users about the possibility to use a SELECT statement with the > exact same qualification(s) as the DELETE statement they're planning to run > to see which rows are about to be deleted, to avoid unintended deletion of > rows. I suggest something like this: > > ... > Without a qualification, DELETE will remove all rows from the given table, > leaving it empty. The system will not request confirmation before doing > this! > > You can check which rows will be deleted by any DELETE statement on the > form: > ```DELETE FROM tablename ... <qualificaton> ...``` > by rewriting it into a corresponding SELECT statement: > ```SELECT * FROM tablename ... <qualification> ...``` > > This is my first attempt at contributing to the community, so please be > nice. :)
Uh, this is more of a general SQL training that we don't normally cover in the Postgres docs --- we try to focus on Postgres-specific stuff that people need to know. -- Bruce Momjian <br...@momjian.us> https://momjian.us EDB https://enterprisedb.com Indecision is a decision. Inaction is an action. Mark Batterson
