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Re: Parameter passing in trigger function write in C

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On 04/27/2018 07:25 AM, a wrote:
Yep, I wanna pass the brief reason of manipulating(update, insert or

https://www.postgresql.org/docs/10/static/trigger-interface.html
"
tg_event

Describes the event for which the function is called. You can use the following macros to examine tg_event

...

TRIGGER_FIRED_BY_UPDATE(tg_event)

    Returns true if the trigger was fired by an UPDATE command.
"


delete), name and password of the manipulator (This might be done by database itself).

As for user:

https://www.postgresql.org/docs/10/static/functions-info.html

"current_user 	name 	user name of current execution context"

Password?:

https://www.postgresql.org/docs/10/static/view-pg-shadow.html

Though if you are using password encryption it will be encrypted.



------------------ Original ------------------
*From:* "Adrian Klaver";
*Date:* Friday, Apr 27, 2018 10:16 PM
*To:* "a"<372660931@xxxxxx>; "pgsql-general";
*Subject:* Re: Parameter passing in trigger function write in C

On 04/26/2018 06:48 PM, a wrote:
 > hey thanks mate, I have red that. But the actual data retirement seems
 > to be combination of that and the SPI_get* functions. I'm still testing
 > on it. By the way, if I can pass parameters that is out of the scope of
 > sql statement??


Can you be more specific about what parameters you are looking to pass in?

 >
 >
 > ------------------ Original ------------------
 > *From:* "Adrian Klaver";
 > *Date:* Friday, Apr 27, 2018 9:36 AM
 > *To:* "a"<372660931@xxxxxx <mailto:372660931@xxxxxx>>; "pgsql-general";
 > *Subject:* Re: Parameter passing in trigger function write in C
 >
 > On 04/26/2018 06:13 PM, a wrote:
 >  > Hey everyone:
 >  >
 >  > I was request to write a trigger that perform the following function:
 >  >
>  > 1, The trigger will be set to exam all statement that will result change
 >  > of datas
 >  >
 >  > 2, The trigger will exam three information other than the data updated
 >  > or inserted: user name, password and reasons of change
 >  >
 >  > 3, It will record down, in some format, the time and content of the
 > change.
 >  >
>  > Therefore, I would need some way of passing parameters into the trigger >  > function. Can anyone give me some instructions on how to do it or, if it
 >  > is possible??
 >
> https://www.postgresql.org/docs/10/static/trigger-interface.html <https://www.postgresql.org/docs/10/static/trigger-interface.html> > <https://www.postgresql.org/docs/10/static/trigger-interface.html> <https://www.postgresql.org/docs/10/static/trigger-interface.html>>;
 >
 >
 > --
 > Adrian Klaver
> adrian.klaver@xxxxxxxxxxx <mailto:adrian.klaver@xxxxxxxxxxx> <mailto:adrian.klaver@xxxxxxxxxxx <mailto:adrian.klaver@xxxxxxxxxxx>>


--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx <mailto:adrian.klaver@xxxxxxxxxxx>


--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx




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