Re: Enhancement Request

On Fri, Feb 2, 2024 at 3:50 AM Olivier Gautherot <ogautherot(at)gautherot(dot)net>
wrote:

>
>
> El jue, 1 feb 2024 2:35, Ron Johnson <ronljohnsonjr(at)gmail(dot)com> escribió:
>
>> On Wed, Jan 31, 2024 at 3:51 PM Hajek, Nick <Nick(dot)Hajek(at)vishay(dot)com>
>> wrote:
>> [snip]
>>
>>> Delete from table1 where table1.id in (select table1.id from table1
>>> limit yourlimitnumber)
>>>
>>
>> The IN predicate is only efficient for a very small number of
>> elements, supported by an index. People (including me) who would find
>> DELETE FROM .. LIMIT TO ... useful want to delete a *lot* of rows (but not
>> all in one giant statement).
>>
>
> Deleting large numbers of rows is a complex task with a lot of hidden
> issues (index management between other things). Adding a LIMIT paradigm
> will not simplify it in any way.
>

Smaller "bites" are easier to manage than giant bites.

> I remember doing it on tables with over 50 millions rows and had my share
> of disaster recoveries. Partitions saved my life.
>

You must have been doing something wrong.

>