On Thu, 24 Jan 2019 at 15:40, Adrian Klaver <adrian.klaver@aklaver.com> wrote:
> delete from delete_test where
>
> and then forget the 'field =' part. Though my more common mistake along
> that line is:
>
> delete from delete_test;
>
> At any rate, if it can be done it will be done.
If you follow that logic, then having a single boolean test at all
should be invalid.
CREATE TABLE mytest (myval char (1));
INSERT INTO mytest VALUES ('a'),('b'),('c'),('s'),('t');
DELETE FROM mytest WHERE 't';
SELECT * FROM mytest;
myval
-------
(0 rows)
Geoff