You could create an index on the function date(), which strips the time
information.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: 04 August 2003 14:01
To: PgSQL General ML
Subject: Re: [GENERAL] Monthly table partitioning for fast purges?
I am
However you cannot currently remove a column...
Oh yes you can:
ALTER TABLE tbl DROP COLUMN whatever
http://www.postgresql.org/docs/view.php?version=7.3idoc=0fil
e=ddl-alter.html
IIRC it was introduced fairly recently (7.3?)
Doh! Really should get rid of 'Practical PostgreSQL' as
// check if entry already exists
SELECT COUNT(*) FROM tablename WHERE [cond]
..
if($count 0)
UPDATE
else
INSERT
but this will double the hit to the database server, because
for every
operation I need to do SELECT COUNT(*) first. The data itself
is not a lot,
and the condition
I have foreign keys set up so that if, for example, a record
in customer
is deleted, the corresponding records in the customer_addresses table
are also removed. However, I can't find a way of ensuring
records in the
address table are deleted too, given that lots of different
tables will
I have a table with a bunch of records already inserted. When
I want to add or remove fields from the, what I've done is
produce an sql file, add the fields to the create table
directive, and add the fields manually to each record to be
inserted. Then I do an
\i db_name
which
