Обсуждение: DDLs of a Function

Hi Postgres Community,

We want to drop a table and recreate it. As we all know, dropping a table
even drops the dependent objects like views, MVs, functions. I wanted your
help to get the DDL of the (dependent) function before we can drop the
table. Once the dropped table is being recreated, this DDL will be helpful
to recreate that function.

We found a way to get the DDL of the Views and MVs, but not for function! :(
Can someone please help ?

Regards,
Pratik Mehta



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Sent from: https://www.postgresql-archive.org/PostgreSQL-admin-f2076596.html

On Mon, 2019-12-16 at 22:00 -0700, pratmeht wrote:
> We want to drop a table and recreate it. As we all know, dropping a table
> even drops the dependent objects like views, MVs, functions. I wanted your
> help to get the DDL of the (dependent) function before we can drop the
> table. Once the dropped table is being recreated, this DDL will be helpful
> to recreate that function.
> 
> We found a way to get the DDL of the Views and MVs, but not for function! :(
> Can someone please help ?

You can use "pg_get_functiondef":

SELECT pg_get_functiondef('pg_get_functiondef'::regproc);

                      pg_get_functiondef                       
---------------------------------------------------------------
 CREATE OR REPLACE FUNCTION pg_catalog.pg_get_functiondef(oid)+
  RETURNS text                                                +
  LANGUAGE internal                                           +
  STABLE PARALLEL SAFE STRICT                                 +
 AS $function$pg_get_functiondef$function$                    +
 
(1 row)

This article contains something about view dependencies:
https://www.cybertec-postgresql.com/en/tracking-view-dependencies-in-postgresql/

Yours,
Laurenz Albe
-- 
Cybertec | https://www.cybertec-postgresql.com

Hi Laurenz,

Thank you so much for your reply. I will check then and let you know how it
goes.

Regards,
Pratik



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Sent from: https://www.postgresql-archive.org/PostgreSQL-admin-f2076596.html

Hi Omkar,

Thank you so much for your reply. I will check and let you know how it goes.

Regards,
Pratik



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Sent from: https://www.postgresql-archive.org/PostgreSQL-admin-f2076596.html