How to manipulate field in New record
Hello,
Looking for a global solution I've write e trigger function that as
optional parameter (argv[0]) receive the name of a specific parameter.
My need is to get the filed from NEW and OLD record manipulate and set back
the field with new value.
Problem 1: how to get and set this field
Problem 2: the field has Composit type
On Wed, Jun 07, 2023 at 02:12:58PM +0200, Lorusso Domenico wrote:
Hello,
Looking for a global solution I've write e trigger function that as
optional parameter (argv[0]) receive the name of a specific parameter.My need is to get the filed from NEW and OLD record manipulate and set back
the field with new value.Problem 1: how to get and set this field
Problem 2: the field has Composit type
Do this in pl/perl, pl/python, pl/tcl or anything like this.
Or use one of methods shown here:
https://www.depesz.com/2021/04/21/getting-value-from-dynamic-column-in-pl-pgsql-triggers/
depesz
On 6/7/23 05:12, Lorusso Domenico wrote:
Hello,
Looking for a global solution I've write e trigger function that as
optional parameter (argv[0]) receive the name of a specific parameter.My need is to get the filed from NEW and OLD record manipulate and set
back the field with new value.
A new row won't have the OLD RECORD.
Read:
https://www.postgresql.org/docs/current/plpgsql-trigger.html
and look at the examples.
Problem 1: how to get and set this field
Problem 2: the field has Composit type
--
Adrian Klaver
adrian.klaver@aklaver.com
yes I know, the trigger should be before insert update and delete, and the
function decide what manipulate basing on TG_OP
Il giorno mer 7 giu 2023 alle ore 15:57 Adrian Klaver <
adrian.klaver@aklaver.com> ha scritto:
On 6/7/23 05:12, Lorusso Domenico wrote:
Hello,
Looking for a global solution I've write e trigger function that as
optional parameter (argv[0]) receive the name of a specific parameter.My need is to get the filed from NEW and OLD record manipulate and set
back the field with new value.A new row won't have the OLD RECORD.
Read:
https://www.postgresql.org/docs/current/plpgsql-trigger.html
and look at the examples.
Problem 1: how to get and set this field
Problem 2: the field has Composit type--
Adrian Klaver
adrian.klaver@aklaver.com
--
Domenico L.
per stupire mezz'ora basta un libro di storia,
io cercai di imparare la Treccani a memoria... [F.d.A.]