The latest from the MySQL community

Description:
The drupal_lookup_path function unnecessarily counts all rows of the url_alias table to determine if any aliases are defined. This can be expensive on a transactional database such as MySQL with the InnoDB Storage Engine or PostgreSQL when a website has a lot of aliases. This patch modifies the query to always only return one row, possible because any existing pid will be greater than 0. If no aliases are defined, it will return 0.

Status:
This patch has not been merged into any release of Drupal.

Patch

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This month’s (September 2008) edition of Linux Journal has an in-depth review of Zmanda Recovery Manager for MySQL (written by Alolita Sharma a veteran of Open Source). Oh, and we made it on the cover as well! If you are browsing Magazines section of your local bookstore, do look us up..

This is the 114th edition of Log Buffer, the weekly review of database blogs.

I am sorry to say that this log buffer was supposed to be edited by Dave Edwards, but he’s suffering from severe and long-lasting tooth pain and until his root canal is done he’s KO’d by a killer combo of painkillers and the pain that the painkillers can’t kill. I’ve been there myself, twice, and here’s a tip Dave. It hurts until the dentist takes out the needle. Then the pain goes away while he digs. The pain comes back that night. The next morning it’s worse than ever, unbelievably, writhingly bad. But later that afternoon, blisssssssssssss. :-) Good luck man.

This Log Buffer has been generated in a completely automated way with the help of the incredibly awesome AideRSS.

To give you an idea …

Smithy commented on my blog post about the rumor of Monty leaving Sun with a pointer to an article on ComputerWorld Finland that mentions:

Widenius told to Computerworld Finland on Friday that negotiations are still on.

Meanwhile, Matt Asay, who seems to think Monty actually has left Sun (even though all other reports have been clear to mention that this is unconfirmed), writes of a new investment Monty has made.

Last week I speculated about the impact of Monty leaving Sun. In the end, if he does stay, it’s wonderful for Sun. If he leaves, he will no …

Scenario: Someone wants to know which of the over 50 MySQL users have certain privileges.

There are many ways to solve this problem. Some of these scenarios are tedious and repetitious, others take no time at all.

The issue, of course, lies in what the “certain” privileges are. If it is “who has the SUPER privilege?” then a simple

SELECT user,host FROM mysql.user WHERE Super_priv='Y';

is sufficient. If it is “who has write access to the foo database”, you might write:

SELECT user,host FROM db WHERE Db='foo' AND Select_priv='Y';

but that only shows who explicitly has read permissions on that database; it does not include those who have global read permissions. The full query would be:
(more…)

Two articles have already been published from the competition submissions. One …

For example, after executing this code:

create table t1 (id int, c char(10), d date);
insert into t1 values (1, 'abc', '2008-01-01');
insert into t1 values (2, 'def', '2008-08-19');
insert into t1 values (3, 'ghi', current_date());
select * from t1; …

And since I mentioned this subject, there are two additions:

• the schema now supports partitioning. Instead of using employees.sql, load the data via employees_partitioned.sql
• the schema has been altered to be used with Drizzle. The test script works with Drizzle if you compile the MD5 plugin and load it at startup.

As I mentioned some time ago, Software Freedom Day 08 will take place on Saturday, 20th of September 2008.

Coincidentally, the a large number of Sun/MySQL Engineers and other Sun folks will be in Riga, Latvia for an internal developer meeting around this day. To make use of this opportunity, we plan to give a number of sessions and presentations (in english) about various topics and to contribute to this global celebration of Open Source Software.

We've set up a Team Page on the Software Freedom Day web site for this event - the venue will be the …

As I mentioned some time ago, Software Freedom Day 08 will take place on Saturday, 20th of September 2008.

Coincidentally, the a large number of Sun/MySQL Engineers and other Sun folks will be in Riga, Latvia for an internal developer meeting around this day. To make use of this opportunity, we plan to give a number of sessions and presentations (in english) about various topics and to contribute to this global celebration of Open Source Software.

We've set up a Team Page on the Software Freedom Day web site for this event - the venue will be the …