return BSON regular expressions as BSONRegExp instances.返回BSON正则表达式作为BSONRegExp实例。
If true, allows the write to opt-out of document level validation如果为true
,则允许写入选择退出文档级验证
the serializer will check if keys are valid.序列化程序将检查键是否有效。
Specifies a collation指定排序规则
A user-provided comment to attach to this command用户提供了要附加到此命令的注释
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.允许指定是否有我们希望作为未序列化原始缓冲区返回的字段。
Specify that the update query should only consider plans using the hinted index指定更新查询应仅考虑使用暗示索引的计划
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
)
Map of parameter names and values that can be accessed using $$var (requires MongoDB 5.0).可以使用$$var
访问的参数名称和值的映射(需要MongoDB 5.0)。
when deserializing a Binary will return it as a node.js Buffer instance.反序列化二进制文件时,会将其作为Node.js缓冲区实例返回。
when deserializing a Long will fit it into a Number if it's smaller than 53 bits反序列化Long时,如果Long小于53位,则将其放入一个数字中
when deserializing will promote BSON values to their Node.js closest equivalent types.当反序列化时,将BSON值提升为其Node.js最接近的等效类型。
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
When true, creates a new document if no document matches the query如果为true
,则在没有与查询匹配的文档时创建新文档
Write Concern as an object将关注点作为对象写入
Generated using TypeDoc
A set of filters specifying to which array elements an update should apply一组筛选器,指定更新应应用于哪些数组元素