Re: [SQL] REINDEX DATABASE

2005-07-27 Thread Tom Lane
Chris Browne <[EMAIL PROTECTED]> writes: > [EMAIL PROTECTED] (Achilleus Mantzios) writes: >> I am just saying that the common saying "reindex is not needed for >> 7.4+" maybe is not true in all circumstances. > ... > In versions earlier than 7.4, running a REINDEX periodically was > *essential* i

Re: [SQL] Foreign key with check?

2005-07-27 Thread Bruno Wolff III
On Wed, Jul 27, 2005 at 16:08:19 -0400, Jeff Boes <[EMAIL PROTECTED]> wrote: > Given a table like this: > > create table primary ( > a integer primary key, > b boolean > ); > > And another like this: > > create table secondary ( > a integer, > some_other_fields > ); > > > I would lik

[SQL] Foreign key with check?

2005-07-27 Thread Jeff Boes
Given a table like this: create table primary ( a integer primary key, b boolean ); And another like this: create table secondary ( a integer, some_other_fields ); I would like a foreign key constraint on the "secondary" table that looks something like: foreign key (a, true) reference

Re: [SQL] REINDEX DATABASE

2005-07-27 Thread Chris Browne
[EMAIL PROTECTED] (Achilleus Mantzios) writes: > O Chris Browne έγραψε στις Jul 26, 2005 : >> You can get a savings of about 4% of the space, but at the cost of >> taking an appreciable outage during which the database is not usable. > > 1st not all database is unusable, during the whole reindexdb

Re: [SQL] Joining two large tables on a tiny subset of rows

2005-07-27 Thread Richard Huxton
Dmitri Bichko wrote: Hello, I have two tables, one has a foreing key from the other (only showing the relevant columns and indices here): Table "expresso.probes" Column| Type | Modifiers -++--- platform_id | inte