… but there are number of things you need to know. First let me clarify what MySQL Query Cache is – I’ve… mentioned only SELECT queries are cached – so it looks at first letter of the query and if it is “S” it proceeds… are few ways you can look at query_cache efficiency. First looking at number of your selects – Com_select and see…
Comment: MySQL Query Cache
February 18, 2008 By 69 Comments
… mentioned only SELECT queries are cached – so it looks at first letter of the query and if it is “S†it…
Comment: Why MySQL could be slow with large tables ?
January 31, 2008 By 139 Comments
…. I use multiple record INSERTs (150 each time), and the first INSERT usually takes 600 secs (when the task starts). After… NO ACTION ON UPDATE NO ACTION ) ENGINE=InnoDB; The capital letters are INDEXes and some reference columns in other tables, and…’d just assigned a different [FOREIGNER] KEY for every capital letter column, and a different AUTO_INCREMENT column as PRIMARY or…
Post: Shard-Query adds parallelism to queries
November 15, 2010 By 16 Comments
… iteration reads an additional year of data. That is, the first query reads one year, and the last query reads 21…’; .tblGenFixed td {padding:0 3px;overflow:hidden;white-space:normal;letter-spacing:0;word-spacing:0;background-color:#fff;z-index…; .tblGenFixed td {padding:0 3px;overflow:hidden;white-space:normal;letter-spacing:0;word-spacing:0;background-color:#fff;z-index…
