…210″] MySQL 5.6 vs MySQL 5.5 & the Star Schema Benchmark[/caption] So far most of the benchmarks posted about MySQL 5….Quantity tinyint, LO_ExtendedPrice decimal, LO_OrdTotalPrice decimal, LO_Discount decimal, LO_Revenue decimal, LO_SupplyCost decimal, LO_Tax tinyint, LO_CommitDateKey int not null, …
Post: MySQL 6.0 vs 5.1 in TPC-H queries
… queries from TPC-H benchmarks, particularly comparing MySQL 6.0.4-alpha with 5.1. MySQL 6.0 is interesting here, as…` int(11) NOT NULL, `l_partkey` int(11) NOT NULL, `l_suppkey` int(11) NOT NULL, `l_linenumber` int(11) NOT NULL, `l_quantity` decimal(15,2) NOT NULL, `l_extendedprice` decimal(15,2…
Post: Using index for ORDER BY vs restricting number of rows.
… TABLE `goods` ( `cat_id` int(10) unsigned NOT NULL, `seller_id` int(10) unsigned NOT NULL, `price` decimal(10,2) NOT NULL, KEY `cat_id` (`cat_id`,`price`), KEY `cat_id_2` (`cat_id`,`seller_id` ) mysql> explain… so it may be quite serious. To fix this issue MySQL would need to better take into account column selectivity together…

