pg.ddx.io  pgsql-sql@postgresql.org mailing list archive  

help / color / mirror / Atom feed
From: luca.scaramella@recom.it
To: pgsql-sql@postgresql.org
Subject: DELETE FROM A BLACK LIST
Date: Wed, 5 Mar 2003 11:45:25 +0100
Message-ID: <OF93BA7C2A.CBC03AC0-ONC1256CE0.003B13D5@recom.it> (raw)


Hi all,
I have a Blacklist table containing about 1000 ID to delete from another
table (T1 about 1440294 records)
If i use the SQL

DELETE FROM T1 WHERE T1.ID IN (SELECT BLACKLIST.ID FROM BLACKLIST)

the operation is very slow .

There is a faster way to do the same operation??

Thanks
Luca








view thread (8+ messages)  latest in thread

Message-ID: <OF93BA7C2A.CBC03AC0-ONC1256CE0.003B13D5@recom.it>
Permalink:  ../OF93BA7C2A.CBC03AC0-ONC1256CE0.003B13D5@recom.it/
Also on:    postgresql.org/message-id/OF93BA7C2A.CBC03AC0-ONC1256CE0.003B13D5@recom.it

 · 

reply
Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-sql@postgresql.org
  Cc: luca.scaramella@recom.it
  Subject: Re: DELETE FROM A BLACK LIST
  In-Reply-To: <OF93BA7C2A.CBC03AC0-ONC1256CE0.003B13D5@recom.it>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox