// fuzzy matching is beginning createTime 2019-07-23
db.getCollection('driver_online_record').find({"createTime" : /^2019-07-23/})
// include fuzzy matching createTime 2019-07-23
db.getCollection('driver_online_record').find({"createTime" : /2019-07-23/})
// fuzzy matching createTime is ending 2019-07-23
db.getCollection('driver_online_record').find({"createTime" : /2019-07-23^/})
// aaa include fuzzy matching createTime cut ignore case
db.getCollection('driver_online_record').find({"createTime" : /aaa/i})