From: | "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au> |
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To: | Johannes Grodem <johs(at)copyleft(dot)no>, "p-sql" <pgsql-sql(at)postgresql(dot)org> |
Subject: | Re: comparision chart |
Date: | 2002-02-20 08:59:09 |
Message-ID: | GNELIHDDFBOCMGBFGEFOIEHLCBAA.chriskl@familyhealth.com.au |
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Lists: | pgsql-sql |
> > Widely used as a very fast read only database. Backs _many_ web sites.
> > Locking at the table level only, thus update of the database
> best done when
> > effectively in single-user-mode. Transactions implemented using
> external
> > methods.
>
> The version with InnoDB has row-level locking and transactions. (And
> is supposedly very fast, unlike the BDB-tables.)
I love how they still call it 'mysql' instead of 'sql wrapper around someone
else's better backend library'...
OK, so they have tables with transactions - so now what happens if you do
this?
* begin a transaction
* do a select for update that joins two tables, one with transactions and
one without
* another connection deletes some rows from the transaction-less table out
from under you
* update the transaction-less table
* update the table with transactions
* drop the table with transactions
* rollback the transaction
All sorts of crazy fun!!! It's insane!
(Just my 2c - let's not start another flame war...)
Chris
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