在mysql数据库中添加索引可以帮助提高查询性能,尤其是在数据量大的表中。索引可以在创建表时定义,也可以在表创建后添加。
I like creating named branches in Mercurial to deal with features that might take a while to code, so when I push I do a hg push -r default to ensure I\'m only pushing changes to the default branch. H