MongoDB 数据类型

MongoDB 将 json 格式的字符串转化为 bson 格式的数据进行存储，目的是节省存储空间，但同时不会改变json的样式。
BSON is a binary serialization format used to store documents and make remote procedure calls in MongoDB.
BSON是一种二进制串行格式，这种格式在MongoDB中被存储为文档和让远程的程序调用。

一、BSON Types#

Each BSON type has both integer and string identifiers as listed in the following table:

序号	类型	别名	备注
1	Double	"double"
2	String	"string"
3	Object	"object"
4	Array	"array"
5	Binary data	"binData"
6	ObjectId	"objectId"
7	Boolean	"bool"
8	Date	"date"
9	Null	"null"
10	Regular Expression	"regex"
11	JavaScript	"javascript"
12	32-bit integer	"int"
13	64-bit integer	"long"
14	Timestamp	"timestamp"
15	Decimal128	"decimal"
16	Min key	"minKey"
17		Max key	"maxKey"

二、参考来源#

BSON Types