mongodb BinData

[mongodb-dev] BinData

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Joson Mandaro  发送至 mongodb-dev

显示详细信息 18:50 (2 小时前)

Hi all,
    I found Gridfs can encode files in two spec:

BinData(0,"Q1dTCf8nAAB4nM0...")
BinData(2,"qBYAAENXUwn9Jw...")

what's '0' and '2' meaning? And there's any information about BinData() ?
Best Regards,

Joson

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Kyle Banker  发送至 mongodb-dev

显示详细信息 19:03 (2 小时前)

The 0 and 2 are subtypes, used to give sense of what kind of binary
data we're encoding. For instance, there's a subtype for md5. They're
all explained in the bsonspec: http://bsonspec.org/#/specification

The drivers used to encode GridFS binary as subtype 2, but that's been
deprecated in favor of subtype 0. Once 1.8 is released, most of the
drivers should be using type 0.

- 显示引用文字 -

On Sun, Feb 13, 2011 at 5:50 AM, Joson Mandaro <[e-mail]> wrote:
> Hi all,
>     I found Gridfs can encode files in two spec:
>
> BinData(0,"Q1dTCf8nAAB4nM0...")
> BinData(2,"qBYAAENXUwn9Jw...")
>
> what's '0' and '2' meaning? And there's any information about BinData() ?
> Best Regards,
>
> Joson
>

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