return BSON regular expressions as BSONRegExp instances.返回BSON正则表达式作为BSONRegExp实例。
the serializer will check if keys are valid.序列化程序将检查键是否有效。
Collation排序规则
Comment to apply to the operation.要应用于操作的注释。
In server versions pre-4.4, 'comment' must be string. A server error will be thrown if any other type is provided.在4.4之前的服务器版本中,“comment”必须是字符串。如果提供任何其他类型,将引发服务器错误。
In server versions 4.4 and above, 'comment' can be any valid BSON type.在4.4及以上版本的服务器中,“comment”可以是任何有效的BSON类型。
(MongoDB 4.4. or higher) Specifies how many data-bearing members of a replica set, including the primary, must complete the index builds successfully before the primary marks the indexes as ready. (MongoDB 4.4.或更高版本)指定在主副本集将索引标记为就绪之前,副本集(包括主副本集)必须有多少个数据承载成员成功完成索引构建。This option accepts the same values for the "w" field in a write concern plus "votingMembers", which indicates all voting data-bearing nodes.此选项接受写入关注点中“w”字段的相同值加上“votingMembers”,表示所有投票数据承载节点。
Enable utf8 validation when deserializing BSON documents. 反序列化BSON文档时启用utf8验证。Defaults to true.默认为true
。
Allows you to expire data on indexes applied to a data (MongoDB 2.2 or higher)允许您使应用于数据的索引的数据过期(MongoDB 2.2或更高版本)
Specifies the verbosity mode for the explain output.指定解释输出的详细模式。
allow to specify if there what fields we wish to return as unserialized raw buffer.允许指定是否存在我们希望作为非序列化原始缓冲区返回的字段。
Specifies that the index should exist on the target collection but should not be used by the query planner when executing operations. 指定索引应存在于目标集合上,但查询规划器在执行操作时不应使用该索引。(MongoDB 4.4 or higher)(MongoDB 4.4或更高版本)
serialize will not emit undefined fields (default:true)序列化不会发出未定义的字段(默认值:true
)
For geospatial indexes set the high bound for the co-ordinates.对于地理空间索引,设置坐标的上限。
For geospatial indexes set the lower bound for the co-ordinates.对于地理空间索引,设置坐标的下限。
Override the autogenerated index name (useful if the resulting name is larger than 128 bytes)覆盖自动生成的索引名称(如果结果名称大于128字节,则很有用)
Creates a partial index based on the given filter object (MongoDB 3.2 or higher)基于给定的筛选器对象创建部分索引(MongoDB 3.2或更高版本)
when deserializing a Binary will return it as a node.js Buffer instance.当反序列化Binary时,它将作为node.js Buffer实例返回。
when deserializing a Long will fit it into a Number if it's smaller than 53 bits当反序列化Long时,如果Long小于53位,它将适合Number
when deserializing will promote BSON values to their Node.js closest equivalent types.当反序列化将把BSON值提升到它们的Nodej最接近的等效类型时。
Return BSON filled buffers from operations从操作返回BSON填充的缓冲区
Specify a read concern and level for the collection. (only MongoDB 3.2 or higher supported)指定集合的读取关注点和级别。(仅支持MongoDB 3.2或更高版本)
The preferred read preference (ReadPreference.primary, ReadPreference.primary_preferred, ReadPreference.secondary, ReadPreference.secondary_preferred, ReadPreference.nearest).首选的读取首选项(ReadPreference.primary
、ReadPreference.primary_preferred
、ReadPreference.secondary
、ReadPreference.secondary_preferred
、ReadPreference.nearest
)。
Should retry failed writes应重试失败的写入
serialize the javascript functions (default:false).序列化javascript函数(默认值:false
)。
Specify ClientSession for this command为此命令指定ClientSession
Creates a sparse index.创建稀疏索引。
Allows users to configure the storage engine on a per-index basis when creating an index. (MongoDB 3.0 or higher)允许用户在创建索引时按索引配置存储引擎。(MongoDB 3.0或更高版本)
Creates an unique index.创建唯一索引。
Specifies the index version number, either 0 or 1.指定索引版本号,0或1。
Write Concern as an object将关注点写为对象
Generated using TypeDoc
Creates the index in the background, yielding whenever possible.在后台创建索引,尽可能生成索引。