Re: Dropping functions from pg_proc table w/ querry

From: Ian Barwick <ian(dot)barwick(at)2ndquadrant(dot)com>
To: Wells Oliver <wells(dot)oliver(at)gmail(dot)com>, pgsql-admin <pgsql-admin(at)postgresql(dot)org>
Subject: Re: Dropping functions from pg_proc table w/ querry
Date: 2019-10-30 03:26:46
Message-ID: 6ebc3e08-a2e3-b8f9-773e-0bc24e79e75f@2ndquadrant.com
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On 2019/10/30 12:05, Wells Oliver wrote:
> I have this query:
>
> select * from pg_proc where probin like '%someoldstuff%';
>
> Which shows abou 20 functions I want dropped. Is there a quick convenient SQL query for dropping all of these? Can't quite figure it out.

Something like this should do the trick:

DO
$$
DECLARE
rec RECORD;
BEGIN
FOR rec IN
SELECT n.nspname || '.' || p.proname || '(' || pg_catalog.pg_get_function_arguments(p.oid) ||')' AS func
FROM pg_catalog.pg_proc p
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = p.pronamespace
WHERE p.proname LIKE 'foo%'
LOOP
RAISE NOTICE 'Dropping: %', rec.func;
EXECUTE 'DROP FUNCTION ' || rec.func;
END LOOP;
END;
$$;

Use at your own risk etc. etc.

Regards

Ian Barwick

--
Ian Barwick https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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