2019年4月25日
MongoDB - Indexes
#explain command pp db[:zips].find(:state => 'MD').explain #List all indexes: db[:zips].indexes.each do |index| p index #drop_one db[:zips].indexes.drop_one('state_1') #unique command d... Read More
posted @ 2019-04-25 12:00 vixennn Views(291) Comments(0) Diggs(0)
GridFS and Geospatial
GridFS - specification for storing and retrieving large files... images,audio file, video files... File system to store the chunks. Data is stored wit Read More
posted @ 2019-04-25 11:11 vixennn Views(104) Comments(0) Diggs(0)