Обсуждение: Partitioned tables and triggers

Hello to everyone, yesterday I created my first montly partitioned table with
its insert trigger following the specific manual page.

At the moment table seems to work correctly, but I have some doubts:

1 - After an insert operation, I can see data either in master and in child
table. Is this a normal behavior?
2 - I created only insert trigger, but not update and delete. Do I need also
these triggers to managing data correctly?
3 - When a BEFORE INSERT trigger function execute in its turn an INSERT
operation, are the origina INSERT executed or not? Are the data inserted in
master table also, and not only in child table?

Thanks in advance.

Mephysto



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mephysto <mephystoonhell@gmail.com> wrote:

> Hello to everyone, yesterday I created my first montly partitioned table with
> its insert trigger following the specific manual page.
>
> At the moment table seems to work correctly, but I have some doubts:
>
> 1 - After an insert operation, I can see data either in master and in child
> table. Is this a normal behavior?

Yeah, but you can say 'select ... from ONLY ...'


> 2 - I created only insert trigger, but not update and delete. Do I need also
> these triggers to managing data correctly?

Depends. Is this a insert-only - table, or do you have updates/deletes?


> 3 - When a BEFORE INSERT trigger function execute in its turn an INSERT
> operation, are the origina INSERT executed or not? Are the data inserted in
> master table also, and not only in child table?

Your INSERT-Function should return NULL to avoid insert into the
main-table.




Andreas
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Andreas Kretschmer-2 wrote
>
> Depends. Is this a insert-only - table, or do you have updates/deletes?
>

No, certainly I need UPDATE, and probably DELETE also. Do I need to create
UPDATE and DELETE trigger?



Andreas Kretschmer-2 wrote
>
> Your INSERT-Function should return NULL to avoid insert into the
> main-table.
>
I understood, thank you very much.

Bye.

Mephysto

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