… then lookup that value from an index JUST on the GUID column. Since you need a unique index ANYWAY you can save a LOT of IO since you’re now using a smaller column… it easy to build larger clustered databases. I just with MySQL had support for showing varbinary values on the console without…
Post: High-Performance Click Analysis with MySQL
December 22, 2008 By 13 Comments
…’t use GUIDs. Which brings me to my next point: Use InnoDB Assuming that you will use the stock MySQL server… this now. You can have the clicks column record the total, and the blue_clicks column record only blue clicks; to find… neighbors will share a set of primary key columns. And not only will every index be a little narrower, the table will…
Post: Percona XtraDB Cluster reference architecture with HaProxy
June 20, 2012 By 63 Comments
…by-step guide to set up Percona XtraDB Cluster …: Primary, number of nodes: 3, my index: 0, protocol version 2 120619 13…mysql –mysql-engine-trx=yes –mysql-table-engine=innodb –mysql-host=127.0.0.1 –mysql-port=3307 –mysql-user=sbtest –mysql…. If you look at Cur column under Session, you can see, …
Comment: MySQL Partitioning - can save you or kill you
June 28, 2012 By 45 Comments
… above mentioned index and PK, mysql did not select any index (saw using EXPLAIN) when my queries contained only one of the columns (Strange…??) 2. We are using mysql… a database, so, request you please ignore any stupidity and guide…
Comment: To UUID or not to UUID ?
April 15, 2008 By 28 Comments
… with UUID’s in MySQL when stored as text. Ideally, MySQL would have a UUID column type to store… better performance in terms of storage and indexing (a 16-byte column instead of 36). In an effort… column and strike a very good balance between speed and uniqueness. They can also be translated to GUID‘…
Comment: MySQL Server Memory Usage
September 1, 2006 By 21 Comments
…Peter Z two guides but cannot …_create_function’, ’0′ ‘Com_create_index‘, ’0′ ‘Com_create_table’, ’31′…_show_collations’, ’176788′ ‘Com_show_column_types’, ’0′ ‘Com_show_…mysql.sock pid-file=/var/run/mysql/mysql.pid datadir=/db/disk2/mysql/data log-bin=/var/log/mysql/log log-slow-queries=/var/log/mysql…
